Acid Toad

Large Beast, Unaligned

---

Armor Class

12 (natural armor)

Hit Points

52(8d10 + 8)

Speed

35ft.

---

STR	DEX	CON	INT	WIS	CHA
15 (+2)	10 (0)	13 (+1)	5 (-3)	9 (-1)	5 (-3)

---

Skills

Athletics+4

Damage Vulnerabilities

piercing

Damage Resistances

poison

Damage Immunities

acid

Condition Immunities

paralyzed, stunned

Senses

blindsight 60 ft., passive Perception 9

Languages

none

Challenge

3 (700 XP)

Proficiency Bonus

+2

---

Acid Insides. When the toad dies, it explodes in a burst of acid. Each creature within 20 feet of it must make a DC 12 Dexterity saving throw, taking 9 (2d8) acid damage on a failed save, or half as much damage on a successful one.

Acid Skin. A creature that touches the toad or hits it with a melee attack while within 5 feet of it takes 3 (1d6) acid damage.

Actions

Tongue. Melee Weapon Attack: +4 to hit, reach 15 ft., one target. Hit: 5 (1d6 + 2) bludgeoning damage, and 3 (1d6) acid damage, and the target is grappled (escape DC 12). Until this grapple ends, the toad can use a bonus action to move the grappled target up to 10 feet closer to it and it can’t make tongue attacks against other targets.

Swallow. Melee Weapon Attack: +4 to hit, reach 5 ft., one target grappled by the toad. Hit: The target is blinded and restrained, it has total cover against attacks and other effects outside the toad, and it takes 13 (2d12) acid damage at the start of each of the toad’s turns. If the toad takes 20 damage or more on a single turn from a creature inside it, the toad must succeed on a DC 21 Constitution saving throw at the end of that turn or regurgitate all swallowed creatures, which fall prone in a space within 10 feet of the toad. If the toad dies, a swallowed creature is no longer restrained by it and can escape from the corpse by using 5 feet of movement, exiting prone.

Ancient Megalodon

Gargantuan Beast, Unaligned

---

Armor Class

17 (natrual armor)

Hit Points

350 (20d20 + 140)

Speed

0ft., swim 60ft.

---

STR	DEX	CON	INT	WIS	CHA
29 (+9)	14 (+2)	24 (+7)	3 (-4)	14 (+2)	8 (-1)

---

Saving Throws

Str+16, Con+14

Skills

Perception+9

Senses

blindsight 300 ft., passive Perception 19

Languages

none

Challenge

22 (41,000 XP)

Proficiency Bonus

+7

---

Blood Frenzy. The megalodon has advantage on melee attack rolls against any creature that doesn’t have all its hp.

Legendary Resistance (3/Day). If the megalodon fails a saving throw, it can choose to succeed instead.

Keen Smell. The megalodon has advantage on any Wisdom (Perception) checks that rely on smell.

Siege Monster. The megalodon deals double damage to objects, structures, and seafaring vehicles.

Strong Swimmer. The megalodon ignores the effects of nonmagical difficult terrain while submerged in water.

Water Breathing. The mgealodon can only breathe underwater.

Actions

Multiattack. The megalodon can make two attacks; one with its bite and one with its tail.

Bite. Melee Weapon Attack: +16 to hit, reach 5ft., one target. Hit: 36 (5d10 + 9) piercing damage. If the target is a Large or smaller creature, it myst succeed on a DC 22 Dexterity saving throw or be swallowed by the megalodon. A swallowed creature is blinded and restrained, it has total cover against any attacks and other effects that originate from outside the megalodon, and it takes 21 (6d6) acid damge at the start of each of the megalodon’s turns. The megalodon can have 2 large creatures or up to 8 medium or smaller creatures swallowed at a single time. If the megalodon takes 30 damage on a single turn from a creature insid eof it, the megalodon must succeed on a DC 21 Constituion saving throw at the end of that turn or regurigtate all swallowed creatures, which fall prone in a space ithin 10ft of the megalodon. If the megalodon dies, a swallowed creature is no longer restrianed by it and can escape from the corpse by using 20ft. of movement, exiting prone.

Tail. Melee Weapon Attack: +16 to hit, reach 15ft., one target. Hit: 27 (4d8 + 9) bludgeoning damage.

Legendary Actions

The megalodon can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time, and only at the end of another creature’s turn. The megalodon regains spent legendary actions at the start of its turn.

Swift Swim. The megalodon moves up to its swim speed without provoking attacks of opportunity.

Tail Swipe. The megalodon makes one Tail attack

Raging Frenzy. The megalodon moves up to half of its speed withput provoking attacks of opportuinty and the lashes out at all creatures nearby. Each creature within 15ft. of it must make a DC 22 Dexterity saving throw. taking 31 (4d10+9 piercing damage ona failure, or half as much on a successful save.

Axopin

Tiny Beast, Unaligned

---

Armor Class

13 (natrual armor)

Hit Points

10 (4d4)

Speed

20ft., swim 40ft.

---

STR	DEX	CON	INT	WIS	CHA
6 (-2)	14 (+2)	10 (0)	1 (-5)	12 (+1)	4 (-3)

---

Skills

Stealth+4

Senses

dpassive Perception 11

Languages

None

Challenge

1/4 (50 XP)

Proficiency Bonus

+2

---

Amphibious. The axopin can breathe air and water.

Keen Smell. The axopin has advantage on Wisdom (Perception) checks that rely on smell.

Refractive Shell. While underwater, the axopin has advantage on stealth checks.

Actions

Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 6 (1d8 + 2) piercing damage.

Tail Slap. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 5 (1d6 + 2) bludgeoning damage.

Reactions

Withdraw. When the axopin is targeted for an attack, it can withdraw into its shell, increasing its AC by +2 for that attack.

Bagworm Builder

Large Beast, unaligned

---

Armor Class

14 (natural armor)

Hit Points

102 (12d10 + 36)

Speed

25ft., climb 25ft

---

STR	DEX	CON	INT	WIS	CHA
19 (+4)	12 (+1)	16 (+3)	2 (-4)	13 (+1)	6 (-2)

---

Damage Resistances

poison

Senses

darkvision 60 ft., passive Perception 11

Languages

None

Challenge

4 (1,100 XP)

Proficiency Bonus

+2

---

Beasts of Labor. The Bagworm Builder can carry up to 1,500 pounds of logs or other materials on its back. It can still climb and move at full speed with this weight.

Sticky Silk. The Bagworm Builder can use its sticky silk to create structures or webbing that can support up to 2,000 pounds of weight. The silk can be destroyed with fire as per the Web spell.

Actions

Bite. Melee Weapon Attack: +4 to hit, reach 5ft., one target. Hit 8 (1d8 + 4) piericng dmage plus 4 (1d8) poison damage.

Web Shot. Ranged Weapon Attack: +4 to hit, range 20ft./80ft., one target. Hit The target is restrained (Escape DC 13).

Bejewled Ram

Small Beast, Unaligned

---

Armor Class

12 (natural armor)

Hit Points

22(5d6 + 5)

Speed

40ft.

---

STR	DEX	CON	INT	WIS	CHA
12 (+1)	14 (+2)	12 (+1)	2 (-4)	10 (0)	5 (-3)

---

Damage Resistances

bludgeoning, piercing, and slashing damage.

Senses

passive Perception 10

Languages

None

Challenge

1/4 (50 XP)

Proficiency Bonus

+2

---

Bejeweled Back. The crystal deposits growing out of the ram’s back have a hardness that is nearly impossible to break. The ram has resistance to bludgeoning, piercing, and slashing damage.

Charge. If the ram moves at least 20 feet straight toward a target and then hits it with a ram attack on the same turn, the target takes an extra 3 (1d6) bludgeoning damage. If the target is a creature, it must succeed on a DC 11 Strength saving throw or be knocked prone.

Actions

Ram. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 5 (1d6 + 2) bludgeoning damage.

Crystal Spray (1/day). The ram releases a spray of crystal shards in a 15-foot cone. Each creature in that area must make a DC 11 Dexterity saving throw, taking 10 (3d6) piercing damage on a failed save, or half as much damage on a successful one. The shards also create a difficult terrain area that lasts for 1 minute.

Bejeweled Tortoise

Huge Beast, Unaligned

---

Armor Class

18 (natural armor)

Hit Points

189 (18d12 + 72)

Speed

20ft., burrow 20ft.

---

STR	DEX	CON	INT	WIS	CHA
20 (+5)	12 (+1)	18 (+4)	2 (-4)	12 (+1)	5 (-3)

---

Saving Throws

Str+9, Con+8

Skills

Perception+5

Damage Resistances

bludgeoning, piercing, and slashing damage.

Senses

darkvision 60ft., tremorsense 60ft., passive Perception 15

Languages

None

Challenge

10 (5,900 XP)

Proficiency Bonus

+4

---

Gem Encrusted. The Bejeweled Tortoise’s shell is embedded with large gem deposits that refract and reflect light. It has advantage on any effect that requires the attacker to contunially look at the tortoise (i.e. A basilisk’s Petrifying Gaze feature).

Immutable Build. The tortoise’s hefty build and gem-encrusted shell grant it advantage on Strength saving throws and checks to resist being moved or knocked prone.instead.

Actions

Multiattack. The tortoise makes two attacks: one with its bite and one with its tail.

Bite. Melee Weapon Attack. +9 to hit, reach 10ft., one target. Hit. 21 (3d10 + 5) piercing damage.

Tail Slam. Melee Weapon Attack. +9 to hit, reach 15ft., one target. Hit. 18 (2d12 + 5) bludgeoning damage. If the target is a creature, it must succeed on a DC 16 Strength saving throw or be pushed up to 15 feet away from the tortoise and knocked prone.

Gem Glare (Recharge 5-6). The tortoise uses its gem-encrusted hide to refract light in a blinding display. Each creature within 30 feet of the tortoise must make a DC 15 Constitution saving throw or be blinded for 1 minute. A blinded creature can repeat the saving throw at the end of each of its turns, ending the effect on a success.

Black Hole Tardigrade

Large Beast, Unaligned

---

Armor Class

16 (natural armor)

Hit Points

73 (7d10 + 35)

Speed

20ft., climb 25ft., fly (hover) 25ft.

---

STR	DEX	CON	INT	WIS	CHA
10 (0)	15 (+2)	20 (+5)	3 (-4)	16 (+3)	10 (0)

---

Saving Throws

Con+8

Damage Immunities

cold, fire, lightning, poison, radiant; bludngeoning, piercing, and slashing from nonmagical attacks.

Senses

blindsight 150ft., darkvision 200ft., passive Perception 13

Languages

None

Challenge

7 (2,900 XP)

Proficiency Bonus

+3

---

Denizen of the Expanse. The tardigrade does not need to breathe.

Sunlight Sensitivity. While in sunlight, the tardigrade has disadvanatge on attack rolls as well as Wisdom (Perception) checks that rely on sight.

Water Sense. The tardigrade knows when a source of water of 5 gallons or more is within 100ft. of it. It has advantage on any checks to determine the waters direction while within this area.

Actions

Multiattack. The tardigrade makes three attacks with its claws.

Claw. Melee Weapon Attack. +5 to hit, reach 5 ft., one target. Hit: 12 (3d6 + 2) slashing damage.

Conjure Black Hole (Recharge 5-6). The tardigrade summons a 5ft. diameter black gole in a space it can see within 120ft. of it. The black hole persists until the tardigrade uses this action again, is slain, unconscious, or is on anothe rplane of existence. When a creature enters the hole’s area for the first time on a turn or starts its turn there, it must make a DC 15 Dexterity saving throw, taking 38 (7d10) force damage on a failed save or half as much on a successful one. A target reduced to 0 hit points by the black hole is sucked into it and the target, everything it was wearing and carrying, except magical items are destroyed. The creature can only be resotred to life by True Resurrection, a Wish spell, or similar magic. Each creature that starts its turn within 10ft. of the black gole and is not anchored to another object must make a DC 15 Strength saving throw or be pulled into the area of the black hole.

Blightbeetle Swarm

Medium swarm of Tiny Beasts, unaligned

---

Armor Class

12

Hit Points

32 (5d8 + 10)

Speed

20ft., climb 20ft.

---

STR	DEX	CON	INT	WIS	CHA
4 (-3)	14 (+2)	15 (+2)	1 (-5)	7 (-1)	3 (-4)

---

Damage Reistances

bludgeoning, piercing, and slashing

Condition Immunities

charmed, frightned, grappled, paralyzed, petrified, prone, restrained, stunned

Senses

blindsight 10ft., passive Perception 9

Languages

none

Challenge

1 (100 XP)

Proficiency Bonus

+2

---

Swarm. The swarm can occupy another creature’s space and vice versa, and the swarm can move through any opening large enough for a Tiny insect. The swarm can’t regain hit points or gain temporary hit points.

Actions

Poisonous Horns. Any creature that starts its turn in the swarm’s space takes 10 (3d6) poison damage, or 5 (2d4) if the swarm is at half its hit points or lower, and must succeed on a DC 12 Constitution saving throw or become poisoned for 1 minute. A creature can take this damage only once per turn. Creatures poisoned in this way lose their proficiency bonus to any attack rolls, skill checks, or saving throws while poisoned in this way.

Bombardier Beetle

Small Beast, Unaligned

---

Armor Class

15 (natural armor)

Hit Points

18 (4d6 + 4)

Speed

30ft., climb 20ft

---

STR	DEX	CON	INT	WIS	CHA
3 (-4)	16 (+3)	12 (+1)	1 (-5)	10 (0)	2 (-4)

---

Damage Resistances

acid

Senses

darkvision 60 ft., passive Perception 10

Languages

None

Challenge

1/2 (100 XP)

Proficiency Bonus

+2

---

Volatile Death. When the bombardier beetle reaches 0hp, it explodes, creatrues within 5ft of the beetle must make a DC 11 Dexterity saving throw, taking 6 (2d6) acid damage on a failed save. A creature that is affected by this damage take an additional 4 (1d8) acid damage at the start of each of its turns as the beetle’s volatile chemicals begin to burn. Creatures can take an action to wipe the acid off of themselves, or another creature can take the help action to remove the acid.

Actions

Bite. Melee Weapon Attack. +5 to hit, reach 5 ft., one target. Hit: 5 (1d6 + 2) piercing damage plus 2 (1d4) acid damage.

Chemical Spray (Recharge 5-6). The bombardier beetle can use an action to spray a 15-foot cone of acid from its abdomen. Each creature in that area must make a DC 11 Dexterity saving throw, taking 10 (3d6) acid damage on a failed save, or half as much damage on a successful one.

Brinewarden

Gargantuan Beast, Unaligned

---

Armor Class

18 (natural armor)

Hit Points

300 (24d20 + 168)

Speed

30ft., swim 120ft

---

STR	DEX	CON	INT	WIS	CHA
25 (+7)	18 (+4)	24 (+7)	2 (-4)	12 (+1)	6 (-2)

---

Skills

Perception+6

Damage Immunities

cold; bludgeoning, piercing, and slashing damage

Senses

darkvision 120 ft., passive Perception 10

Languages

None

Challenge

16 (15,000 XP)

Proficiency Bonus

+5

---

Amphibious. The brinewarden can breathe air and water.

Aqua Step. The Brinewarden can walk on the surface of water as if it were solid ground.

Charge. If the brinewarden moves at least 20 feet straight toward a target and then hits it with a claw attack on the same turn, the target takes an extra 18 (4d8) slashing damage. If the target is a creature, it must succeed on a DC 20 Strength saving throw or be knocked prone.

Legendary Resistance (3/Day). If the brinewarden fails a saving throw, it can choose to succeed instead.

Siege Monster. The brinewarden deals double damage to objects and structures.

Swift Swim. The brinewarden does not provoke attacks of opportuinty while swimming.

Actions

Multiattack. The brinewarden makes three attacks: one with its bite and two with its claws.

Bite. Melee Weapon Attack. +12 to hit, reach 10ft., one target. Hit. 20 (3d8 + 7) piercing damage.

Claw. Melee Weapon Attack. +12 to hit, reach 10ft., one target. Hit. 18 (2d10 + 7) slashing damage.

Tail Slam. Melee Weapon Attack. +12 to hit, reach 20ft., one target. Hit. 29 (4d10 + 7) bludgeoning damage. If the target is a creature, it must succeed on a DC 20 Strength or be pushed 20ft. away.

Legendary Actions

The brinewarden can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature’s turn. The brinewarden regains spent legendary actions at the start of its turn.

Tail Attack. The brinewarden makes a tail slam attack.

Move. The brinewarden moves either 30ft. if it is not swimming or moves up to 60ft. if it is swimming.

Cold Blast (Costs 2 Actions). The brinewarden releases a torrent of freezing cold water in a 45-foot cone. Each creature in that area must make a DC 18 Constitution saving throw, taking 36 (8d8) cold damage on a failed save, or half as much damage on a successful one.

Lair Actions

On initiative count 20 (losing initiative ties), the Brinewarden can take a lair action to cause one of the following effects. The same effect cannot be used twice in a row:

• Tidal Surge. The Brinewarden summons a powerful surge of water to crash against its enemies. Each creature on the ground within 60 feet of the Brinewarden must succeed on a DC 20 Strength saving throw or be knocked prone and pushed 20 feet away from the Brinewarden.
• Dark Abyss. The Brinewarden plunges the area into darkness. A 30-foot radius sphere centered on a point within 120 feet of the Brinewarden becomes magically dark. This darkness spreads around corners, and creatures within it are blinded. The Brinewarden is not affected by this darkness. The darkness lasts for 1 minute or until the Brinewarden uses this effect again.
• Crushing Currents. The Brinewarden commands the currents of the abyss, creating a powerful whirlpool in a 60-foot radius centered on a point it can see within 120 feet. Each creature in that area must make a DC 20 Strength saving throw or be pulled 20 feet toward the center of the whirlpool. On a failed save, the creature also takes 4d6 bludgeoning damage and is restrained until the end of its next turn. A creature that succeeds on the save takes half damage and isn’t restrained. The whirlpool lasts for 1 minute or until the Brinewarden uses this ability again.

Regional Effects

The region containing the lair of a Brinewarden is altered by its presence, creating the following effects:

• Darkened Depths: The region within 5 miles of the Brinewarden’s lair is perpetually dimly lit, even during the day. Shadows cast in this area seem deeper and more foreboding. Magical light sources do not dispel this dim illumination.
• Mysterious Currents: The water currents in the area become unpredictable and turbulent. Swimming creatures must make a DC 15 Strength (Athletics) check to avoid being pushed 10 feet in a random direction at the start of their turn.
• Aquatic Guardians: Sea creatures within 10 miles of the Brinewarden’s lair become more aggressive and territorial, attacking intruders or perceived threats with increased ferocity. Creatures with the aquatic subtype have advantage on attack rolls and damage rolls against creatures that are not aquatic.

If the Brinewarden is killed, these effects vanish over the course of 1d10 days.

Canyon Ambusher

Large Beast, Unaligned

---

Armor Class

15 (natrual armor)

Hit Points

97 (13d10 + 26)

Speed

40ft., climb 40ft.

---

STR	DEX	CON	INT	WIS	CHA
16 (+3)	18 (+4)	14 (+2)	2 (-4)	12 (+1)	4 (-3)

---

Skills

Stealth+8

Damage Resistances

poison

Condition Immunities

poison

Senses

darkvision 60 ft., passive Perception 19

Languages

None

Challenge

5 (1,800 XP)

Proficiency Bonus

+3

---

Ambusher. The canyon ambusher has advantage on attack rolls against any creature it has surprised.

False Appearance. While motionless or moving at half of its movment speed, the canyon ambusher has advanatge on any stealth check to blend into a canyon wall.

Spider Climb. The canyon ambusher can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Web Sense. While in contact with a web, the canyon ambusher knows the exact location of any other creature in contact with the same web.

Web Walker. The canyon ambusher ignores movement restrictions caused by webbing..

Actions

Multiattack. The canyon ambusher makes three attacks: one with its bite and two with its claws or three attacks with its web.

Bite. Melee Weapon Attack: +8 to hit, reach 5 ft., one creature. Hit: 11 (2d6 + 4) piercing damage, and the target must make a DC 13 Constitution saving throw, becoming poisoned on a failed save. While a creature is poisoned in this way, they are also paralyzed. Poisoned creatures can repeat the saving throw at the end of susbuquent turns, ending tthe effect on a success.

Claw. Melee Weapon Attack: +8 to hit, reach 10 ft., one creature. Hit: 13 (2d8 + 4) slashing damage.

Web. Ranged Weapon Attack: +8 to hit, range 30/60 ft., one creature. Hit: The target is restrained by webbing. As an action, the restrained target can make a DC 13 Strength check, bursting the webbing on a success. The webbing can also be attacked and destroyed (AC 10; hp 20; vulnerability to fire damage; immunity to bludgeoning, poison, and psychic damage).

Cave Crab

Medium Beast, Unaligned

---

Armor Class

14 (natrual armor)

Hit Points

52 (8d8 + 16)

Speed

30ft., brrow 20ft.

---

STR	DEX	CON	INT	WIS	CHA
16 (+3)	14 (+2)	14 (+2)	1 (-5)	10 (0)	3 (-4)

---

Skills

Athletics+5, Stealth+4

Damage Resistances

piercing

Senses

darkvision 60 ft., passive Perception 10

Languages

None

Challenge

2 (450 XP)

Proficiency Bonus

+2

---

Amphibious. The cave crab can breathe air and water.

Coral Armor. The cave crab’s natural armor is toughened with bits of coral and barnacles, giving it resistance to bludgeoning damage.

Actions

Multiattack. The cave crab makes two pincer attacks.

Pincer. Melee Weapon Attack: +5 to hit, reach 5ft., one target. Hit 9 (1d12 + 3) bludgeoning damage and the target is grappled (Escape DC 12). the cave crab can have 1 target grappled in this way

Bite. Melee Weapon Attack: +5 to hit, reach 5ft., one creature. Hit 6 (1d6 + 3) piercing damage and 13 (3d8) acid damage.

Bonus Actions

Gather Coral. The crab quickly scavenges nearby coral and adds it to its shell, gaining +1 AC (maximum of 18 AC).

Reactions

Fire Coral. When the cave crab is struck with a melee attack, it can suddenly twist its body and lodge a graze the attacker with some fire coral. The attacker takes 11 (2d10) acid damage. This results in a chunk of the coral breaking off, causing the crab to lose -1 AC (minimum 10 AC).

Cave Scorpion

Medium Beast, Unaligned

---

Armor Class

15 (natural armor)

Hit Points

52 (8d8 + 16)

Speed

40ft., burrow 20ft.

---

STR	DEX	CON	INT	WIS	CHA
16 (+3)	14 (+2)	14 (+2)	1 (-5)	10 (0)	2 (-4)

---

Skills

Stealth+4

Damage Resistances

bludgeoning, piercing, and slashing from nonmagical attacks.

Senses

darkvision 60 ft., tremorsense 60ft., passive Perception 10

Languages

None

Challenge

3 (700 XP)

Proficiency Bonus

+2

---

False Appearance. Whenever the cave scorpion is half buried and not moving, it looks like just a clump of rocks.

Actions

Multiattack. The cave scorpion can make two attacks: one with its claws and one with its stinger.

Claws. Melee Weapon Attack. +5 to hit, reach 5 ft., one target. Hit. 12 (2d8+3) slashing damage.

Stinger. Melee Weapon Attack. +5 to hit, reach 5 ft., one target. Hit. 10 (2d6+3) piercing damage plus 10 (3d6) poiosn damage, and the target must succeed on a DC 13 Constitution saving throw or be paralyzed for 1 minute. The target can repeat the saving throw at the end of each of its turns, ending the effect on a success.

Cazard

Medium Beast, Unaligned

---

Armor Class

14 (natrual armor)

Hit Points

52 (8d8 + 16)

Speed

30ft., climb 20ft.

---

STR	DEX	CON	INT	WIS	CHA
16 (+3)	14 (+2)	14 (+2)	2 (-4)	12 (+1)	5 (-3)

---

Senses

passive Perception 11

Languages

None

Challenge

2 (450 XP)

Proficiency Bonus

+2

---

Cactus Armor. The cazard has a natural armor of spines growing out of its back. Any creature that hits the cazard with a melee attack while within 5 feet of it takes 7 (2d6) piercing damage.

Spider Climb. The cazard can climb difficult surfaces, includign upside down on celings, without needing to make an ability check.

Actions

Bite. Melee Weapon Attack. +5 to hit, reach 5 ft., one target. Hit. 8 (1d10 + 3) piercing damage.

Tail. Melee Weapon Attack. +5 to hit, reach 5 ft., one target. Hit. 7 (1d8 + 3) bludgeoning damage plus 2 (1d4) piercing damage

Spine Toss (3/day). The cazard launches a handful of its spines at a target within 30 feet. The target must make a DC 13 Dexterity saving throw, taking 14 (4d6) piercing damage on a failed save, or half as much damage on a successful one.

Chatterpillar

Tiny Beast, Unaligned

---

Armor Class

12 (natural )

Hit Points

5 (2d4)

Speed

20ft., climb 20ft

---

STR	DEX	CON	INT	WIS	CHA
2 (-4)	14 (+2)	10 (0)	2 (-4)	10 (0)	8 (-1)

---

Senses

passive Perception 10

Languages

Any language its heard.

Challenge

1/8 (25 XP)

Proficiency Bonus

+2

---

Camouflage. The chatterpillar can blend in with its surroundings, giving it advantage on Dexterity (Stealth) checks made to hide.

Mimicry. The chatterpillar can mimic any sound or voice it has heard, up to a maximum of 6 seconds in length.

Spider Climb. The chatterpillar can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check..

Actions

Bite. Melee Weapon Attack. +4 to hit, reach 5 ft., one target. Hit. 4 (1d4 + 2) piercing damage.

Invisibility (1/Short or Long rest). The chatterpillar can turn invisible as an action. It remains invisible until it attacks or uses its Mimicry trait, or until its concentration is broken (as if concentrating on a spell). Once it becomes visible again, it can’t use this trait again until it finishes a short or long rest.

Coral Beast

Large Beast, Unaligned

---

Armor Class

14 (natural armor)

Hit Points

84 (8d10 + 40)

Speed

40ft., swim 60ft.

---

STR	DEX	CON	INT	WIS	CHA
20 (+5)	14 (+2)	20 (+5)	2 (-4)	12 (+1)	6 (-2)

---

Skills

Stealth+5

Senses

passive Perception 11

Languages

None

Challenge

5 (1,800 XP)

Proficiency Bonus

+3

---

Charge. If the coral beast moves at least 20 feet straight towards a creature and then hits it with a ram attack on the same turn, the target takes an extra 10 (3d6) bludgeoning damage. If the target is a creature, it must succeed on a DC 16 Strength saving throw or be knocked prone.

Coral Armor. The coral beats is covered with differing kinds of corals that it can use for defense. When struck with a melee attack while within 5ft., the attacking creature takes 11 (2d10) acid damage.

Hold Breath. The coral beast can hold its breath for 30 minutes.

Actions

Bite. Melee Weapon Attack: +8 to hit, reach 5ft., one target. Hit 27 (4d10 + 5) piercing damage

Ram. Melee Weapon Attack: +8 to hit, reach 5ft., one target. Hit 28 (5d8 + 5) bludgeoning damage.

Coral Reef Elephant

Gargantuan Beast, Unaligned

---

Armor Class

18 (natural armor)

Hit Points

217 (15d20 + 60)

Speed

60ft.

---

STR	DEX	CON	INT	WIS	CHA
27 (+8)	14 (+2)	18 (+4)	3 (-4)	12 (+1)	6 (-2)

---

Damage Resistances

cold

Senses

passive Perception 11

Languages

None

Challenge

9 (5,000 XP)

Proficiency Bonus

+4

---

Hold Breath. The coral reef elephant can hold its breath for 2 hours.

Ocean Treader. The coral reef elephant can walk through bodies of water without any penalty to its movement speed.

Actions

Multiattack. The coral reef elephant makes two attacks with its turnk.

Trunk. Melee Weapon Attack: +12 to hit, reach 15ft., one target. Hit 21 (3d8 + 8) bludgeoning damage.

Vortex Cannon (Recharge 5-6). The coral reef elephant unleashes a powerful torrent of water from its trunk. Each creature within a 45ft. cone must make a DC 17 Dexterity saving throw, taking 55 (10d10) cold damage on a failed save and pushed back to the outside of the cone. Successful saves take half damage and are not pushed back.

Dragon Beetle

Huge Beast, Unaligned

---

Armor Class

18 (natural armor)

Hit Points

195 (17d12 + 85)

Speed

30ft., fly 60ft.

---

STR	DEX	CON	INT	WIS	CHA
23 (+6)	16 (+3)	20 (+5)	1 (-5)	10 (0)	7 (-2)

---

Senses

darkvision 60 ft., passive Perception 19

Languages

None

Challenge

10 (5,900 XP)

Proficiency Bonus

+4

---

Charge. If the Dragon Beetle moves at least 20 feet straight toward a target and then hits it with a horn attack on the same turn, the target takes an extra 14 (4d6) piercing damage. If the target is a creature, it must succeed on a DC 19 Strength saving throw or be pushed up to 10 feet away and knocked prone.

Flyby. The dragon beetle doesn’t provoke opportunity attacks when it flies out of an enemy’s reach.

Deafening Buzz. While the dragon beetle is flying , any creature within 10ft. of the beetle must suceed a DC 19 Cosntituion saving throw or become deafened for 1 minute. Targets can repeat the saving throw at the start of their nest turn, ending the effect on a successful save. Creatures that pass the save are immune to the dragonbeetle’s Deafening Buzz for 24 hours.

Actions

Multiattack. The dragon beetle makes two attacks.

Horn. Melee Weapon Attack: +10 to hit, reach 5ft., one target. Hit 19 (3d8 + 6) piercing damage

Forelimb. Melee Weapon Attack: +10 to hit, reach 10ft., one target. Hit 17 (2d10 + 6) slashing damage

Whirlwind. The dragon beetle violently beats its wings. All creatures within 10ft. of the dragon beetle must make a DC 19 Strength Saving throw or be pushed back 15ft.

Duneswimmer

Large Beast, Unalighned

---

Armor Class

16 (natural armor)

Hit Points

138 (12d10 + 72)

Speed

30ft., burrow 40ft.

---

STR	DEX	CON	INT	WIS	CHA
22 (+6)	12 (+1)	22 (+6)	2 (-4)	12 (+1)	5 (-3)

---

Skills

Perception+4

Condition Immunities

blinded

Senses

blindsight 60ft. (blind beyond this), tremorsense 60 ft., passive Perception 14

Languages

None

Challenge

6 (2,300 XP)

Proficiency Bonus

+3

---

Sand Swim. The duneswimmer can burrow through sand and loose earth at a speed of 30 feet.

Vibrtation Sensor. While the dune swimmer is burrowing, if an instace of thunder damage happens 30ft. of the duneswimmers current location, it immediatly resurfaces.

Actions

Multiattack. The duneswimmer makes two attacks: one with its bite and one with its tail.

Bite. Melee Weapon Attack. +9 to hit, reach 5 ft., one target. Hit. 16 (3d6 + 6) piercing damage.

Tail. Melee Weapon Attack. +9 to hit, reach 10 ft., one target. Hit. 17 (2d12 + 6) slashing damage damage.

Sand Blast (Recharge 5-6). The duneswimmer blasts sand in a 30-foot cone. Each creature in that area must make a DC 16 Dexterity saving throw, taking 33 (6d10) piercing damage and be blinded for 1 minute on a failed save, or half as much damage and not be blinded on a successful one. A blinded creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Fangfin Swarm

Huge Swarm of Tiny Beasts, Unaligned

---

Armor Class

14

Hit Points

126 (12d12 + 48)

Speed

fly 60ft., swim 60ft.

---

STR	DEX	CON	INT	WIS	CHA
6 (-2)	18 (+4)	18 (+4)	2 (-4)	12 (+1)	5 (-3)

---

Senses

darkvision 30ft., passive Perception 11

Languages

None

Challenge

5 (1,800 XP)

Proficiency Bonus

+3

---

Blood Frenzy. The swarm has advantage on attack rolls against creatures who are missing hp.

Swarm. The swarm can occupy another creature’s space and vice versa, and the swarm can move through any opening large enough for a Tiny fangfin. The swarm can’t regain hit points or gain temporary hit points.

Hold Breath. The swarm requires water to be able to breathe, but they can hold their breath for 10 minutes while outside of water

Actions

Bite. Melee Weapon Attack. +7 to hit, reach 0ft., one target in the swarm’s space. Hit: 35 (8d6 + 7) piercing damage, or 21 (4d6 + 7) piercing damage if the swarm has half of its hit points or fewer.

Distracting Swarm (Recharge 5-6). The fangfin swarm’s chaotic movement and flashing scales create a disorienting effect. Each creature within 30 feet of the swarm must succeed on a DC 14 Wisdom saving throw or be blinded until the start of the swarm’s next turn. On a successful save, the creature is immune to the Distracting Swarm effect for the next 24 hours.

Flatworm

Huge Beast, Unaligned

---

Armor Class

15 (natural armor)

Hit Points

136 (13d12 + 52)

Speed

20ft., burrow 20ft.

---

STR	DEX	CON	INT	WIS	CHA
19 (+4)	10 (0)	18 (+4)	1 (-5)	10 (0)	3 (-4)

---

Skills

Stelath+6

Condition Immunities

prone

Senses

tremorsense 60 ft., passive Perception 10

Languages

none

Challenge

5 (1,800 XP)

Proficiency Bonus

+3

---

Ambusher. The flatworm has advantage on Dexterity (Stealth) checks made to hide in sandy environments.

Sand Lurker. While buried in sand, the flatworm is immune to bludgeoning, piercing, and slashing damage from nonmagical attacks.

Actions

Bite. Melee Weapon Attack: +8 to hit, reach 10ft., one target. Hit 26 (4d10 + 4) piericng damage and the target is grappled. At the start of each of the grappled ceatures tursn, it takes 11 (2d10) bludgeoning damage. The target can use an action to make a DC 15 Strength (Athletics) check to break free

Tail Slam. Melee Weapon Attack: +8 to hit, reach 10ft., one target. Hit 27 (5d8 + 4) bldugeoning damage and the target must succeed on a DC 15 Strength saving throw or be pushed 10ft. back and knocked prone.

Sand Burs. The flatworm laucnehs itself from a buried position and slams down on a point it can see within 15ft. of itself. If the space it is targeting is a creature it makes abite attack against said creature. All creatures within 10ft. of the targetd area must ake a DC 15 Dexterity saving throw, taking 33 (6d10) bludgeoning damage on a failed save. If a creature is bitten during this attack, it takes half the damage of the impact.

Flying Scorpion

Small Beast, Unaligned

---

Armor Class

12

Hit Points

13 (3d6+3)

Speed

15ft., fly 45ft.

---

STR	DEX	CON	INT	WIS	CHA
8 (-1)	14 (+2)	12 (+1)	1 (-5)	10 (0)	3 (-4)

---

Senses

darkvision 60 ft., passive Perception 10

Languages

None

Challenge

1/2 (100 XP)

Proficiency Bonus

+2

---

Flyby. The flying scorpion doesn’t provoke an opportunity attack when it flies out of an enemy’s reach.

Actions

Multiattack. The flying scorpion can make two attacks: one with its claws and one with its stinger.

Claws. Melee Weapon Attack. +4 to hit, reach 5 ft., one target. Hit. 5 (1d6+2) piercing damage.

Stinger. Melee Weapon Attack. +5 to hit, reach 5 ft., one target. Hit. 6 (1d8+2) piercing damage and the target must make a DC 11 Constitution saving throw, taking 7 (2d6) poison damage on a failed save, or half as much damage on a successful one.

Frostback Mammoth

Huge Beast, Unaligned

---

Armor Class

13 (natural armor)

Hit Points

204 (12d12 + 96)

Speed

40ft.

---

STR	DEX	CON	INT	WIS	CHA
24 (+7)	9 (-1)	26 (+8)	3 (-4)	11 (0)	6 (-2)

---

Damage Resistances

bludgeoning, piercing, slashing from nonmagical attacks

Damage Immunities

cold

Senses

passive Perception 10

Languages

None

Challenge

8 (3,900 XP)

Proficiency Bonus

+3

---

Snow-walker. The mammoth is immune to nonmagical difficult terrain in snowy/icy conditions.

Trampling Charge. If the mammoth moves at least 20 feet straight toward a creature and then hits it with a gore attack on the same turn, that target must succeed on a DC 18 Strength saving throw or be knocked prone. If the target is prone, the mammoth can make one stomp attack against it as a bonus action.

Actions

Gore. Melee Weapon Attack. +10 to hit, reach 10 ft., one target. Hit: 23 (3d10 + 7) piercing damage.

Stomp. All creatures within 10ft of the mammoth must make a DC 18 Dexterity saving throw, taking 33 (6d10) bludgeoning damage on a failed save or half as much on a successful save.

Ice Breath (Recharge 6). The mammoth exhales a blast of freezing wind in a 30-foot cone from its trunk. Each creature in the area must make a DC 18 Constitution saving throw, taking 56 (14d6) cold damage on a failed save, or half as much damage on a successful one.

Frostscale Serpent

Huge Beast, Unaligned

---

Armor Class

16 (natrual armor)

Hit Points

152 (16d12 + 48)

Speed

40ft., swim 40ft.

---

STR	DEX	CON	INT	WIS	CHA
21 (+5)	17 (+3)	16 (+3)	3 (-4)	12 (+1)	6 (-2)

---

Skills

Perception+4, Stealth+6

Damage Immunities

cold

Condition Immunities

prone

Senses

darkvision 60 ft., blindsight 10ft., passive Perception 14

Languages

None

Challenge

8 (3,900 XP)

Proficiency Bonus

+3

---

Amphibious. The serpent can breathe air and water.

Keen Smell. The serpent has advantage on Wisdom (Perception) checks that rely on smell.

Snow-walker. The serpent is immune to nonmagical difficult terrain in snowy/icy conditions.

Actions

Multiattack. The serpent can make two attacks: one with its bite and one with its constrict.

Bite. Melee Weapon Attack. +8 to hit, reach 10 ft., one target. Hit. 16 (2d10 + 5) piercing damage plus 7 (2d6) cold damage.

Constrict. Melee Weapon Attack. +8 to hit, reach 5 ft., one creature. Hit. 12 (2d6 + 5) bludgeoning damage plus 7 (2d6) cold damage. The target is grappled (escape DC 15) if the serpent isn’t already constricting a creature, and the target is restrained until this grapple ends.

Swallow. The serpent makes one bite attack against a Medium or smaller target it is grappling. If the attack hits, the target is swallowed, and the grapple ends. The swallowed target is blinded and restrained, it has total cover against attacks and other effects outside the serpent, and it takes 21 (6d6) acid damage at the start of each of the serpent’s turns. The serpent can have only one creature swallowed at a time. If the serpent takes 30 damage or more on a single turn from a creature inside it, the serpent must succeed on a DC 17 Constitution saving throw at the end of that turn or regurgitate the swallowed creature, which fall prone in a space within 10 feet of the serpent.

Frost Breath (Recharge 5-6). The serpent exhales a blast of icy air in a 45ft. cone. Each creature in that area must make a DC 16 Constitution saving throw, taking 31 (7d8) cold damage on a failed save, or half as much damage on a successful one.

Frost-Skin Beast

Large Beast, Unaligned

---

Armor Class

15 (natural armor)

Hit Points

126 (12d10 + 60)

Speed

40ft.

---

STR	DEX	CON	INT	WIS	CHA
20 (+5)	12 (+1)	18 (+4)	2 (-4)	12 (+1)	8 (-1)

---

Skills

Perception+4

Damage Resistances

cold

Senses

darkvision 60 ft., passive Perception 14

Languages

none

Challenge

5 (1,800 XP)

Proficiency Bonus

+3

---

Charge. If the Frost-Skin Beast moves at least 20 feet straight toward a target and then hits it with a horn attack on the same turn, the target takes an extra 11 (2d10) piercing damage. If the target is a creature, it must succeed on a DC 18 Strength saving throw or be knocked prone.

Snow Walker. The Frost-Skin Beast is immune to nonmagical difficult terrain mad eof snow or ice

Actions

Multiattack. The Frost-Skin Beast makes two attacks; one with its bite and one with its horn.

Bite. Melee Weapon Attack: +8 to hit, reach 5ft., one target. Hit: 10 (1d10 + 5) piercing damage.

Horn. Melee Weapon Attack: +8 to hit, reach 5ft., one target. Hit: 14 (2d8 + 5) slashing damage.

Freezing Breath (Recharge 5-6). The Frost-Skin Beast exhales a blast of freezing mist in a 30-foot cone. Each creature in that area must make a DC 15 Constitution saving throw, taking 36 (8d8) cold damage on a failed save, or half as much damage on a successful one. Additionally, a creature that fails the saving throw is has its speed lowered by 5ft as the mist clings to its body.

Garbage Gobbler

Large Beast, Unaligned

---

Armor Class

14 (natrual armor)

Hit Points

138 (12d10 + 72)

Speed

30ft, swim 30ft.

---

STR	DEX	CON	INT	WIS	CHA
22 (+6)	8 (-1)	22 (+6)	2 (-4)	10 (0)	6 (-2)

---

Senses

passive Perception 10

Languages

None

Challenge

7 (2,900 XP)

Proficiency Bonus

+3

---

Charge. If the garbage gobbler moves at least 20 feet straight toward a target and then hits it with a ram attack on the same turn, the target takes an extra 7 (2d6) bludgeoning damage. If the target is a creature, it must succeed on a DC 15 Strength saving throw or be knocked prone.

Keen Smell. The garbage gobbler has advantage on Wisdom (Perception) checks that rely on smell.

Muck Swimmer. The garbage gobbler is immune to to nonmagical difficult terrain caused by muddy terrain.

Actions

Bite. Melee Weapon Attack. +9 to hit, reach 5 ft., one target. Hit. 22 (3d10 + 6) piercing damage.

Ram. Melee Weapon Attack. +9 to hit, reach 5 ft., one target. Hit. 15 (2d8 + 6) bludgeoning damage.

Swallow. The garbage gobbler makes one bite attack against a Medium or smaller creature it is grappling. If the attack hits, the target is swallowed, and the grapple ends. The swallowed creature is blinded and restrained, it has total cover against attacks and other effects outside the garbage gobbler, and it takes 21 (6d6) acid damage at the start of each of the garbage gobbler’s turns. The garbage gobbler can have up to two Medium or four Small creatures swallowed at a time. If the garbage gobbler takes 20 damage or more on a single turn from a creature inside it, the garbage gobbler must succeed on a DC 20 Constitution saving throw at the end of that turn or regurgitate all swallowed creatures, which fall prone in a space within 10 feet of the garbage gobbler. If the garbage gobbler dies, a swallowed creature is no longer restrained by it and can escape from the corpse using 15 feet of movement, exiting prone.

Gigantoise

Gargantuan Beast, Unaligned

---

Armor Class

19 (natrual armor)

Hit Points

315 (21d20 + 84)

Speed

40ft, swim 10ft.

---

STR	DEX	CON	INT	WIS	CHA
28 (+9)	8 (-1)	18 (+4)	2 (-4)	12 (+1)	7 (-2)

---

Saving Throws

Str+14, Dex+4, Con+9, Wis+6

Skills

Perception+6

Damage Resistances

poison; bludgeoning, piercing, and slashing from nonmagical attack

Condition Immunities. poisoned

Senses

passive Perception 16

Languages

None

Challenge

15 (13,000 XP)

Proficiency Bonus

+5

---

Hold Breath. The gigantoise can hold its breath for 1 hour.

Keen Smell. The gigantoise has advantage on Wisdom (Perception) checks that rely on smell.

Legendary Resistance (3/day). If the gigantoise fails a saving throw, it can choose to succeed instead.

Actions

Multiattack. The Gigantoise makes three attacks: one with its bite and two with its stomp.

Bite. Melee Weapon Attack. +14 to hit, reach 15ft., one target. Hit. 35 (4d12 + 9) piercing damage. If the target is a creature, it must succeed on a DC 18 Constitution saving throw or take 14 (4d6) poison damage and become poisoned for 1 minute. The poisoned creature can repeat the saving throw at the end of each of its turns, ending the effect on a success.

Stomp. Melee Weapon Attack. +12 to hit, reach 10ft., one target. Hit. 22 (3d8 + 9) bludgeoning damage.

Poison Spray (Recharge 5-6). The Gigantoise exhales a torrent of poisonous gas in a 45-foot cone. Each creature in that area must make a DC 18 Constitution saving throw, taking 72 (11d12) poison damage on a failed save, or half as much damage on a successful one.

Reactions

Shell Defense. When the Gigantoise is targeted with an attack, it can swing its massive shell to block the attack, +4 to its AC for the attack. Regardless if the attack connects or misses because of this feature, the attacker takes 14 (4d6) poison damage.

Legendary Actions

The Gigantoise can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time, and only at the end of another creature’s turn. The Gigantoise regains spent legendary actions at the start of its turn.

Stomp. The Gigantoise makes one stomp attack.

Poison Spine Volley (Costs 2 Actions). The Gigantoise fires out a volley of spines from its shell. Each creature within 20ft. of the gigantoise must succeed on a DC 18 Dexterity saving throw, taking 14 (4d6) poison damage on a failed save or half as much on a successful one.

Crushing Stomp (Costs 3 Actions). The Gigantoise stomps the ground with its massive forelegs, creating a shockwave. Each creature on the ground within 30 feet of the Gigantoise must succeed on a DC 18 Strength saving throw or be knocked prone and take 22 (4d10) thunder damage.

Gigantopede

Huge Beast, Unaligned

---

Armor Class

17 (natrual armor)

Hit Points

63 (6d12 + 24)

Speed

30ft, burrow 20ft., climb 20ft.

---

STR	DEX	CON	INT	WIS	CHA
16 (+3)	10 (0)	18 (+4)	3 (-5)	7 (-2)	5 (-3)

---

Saving Throws

Con+6

Skills

Stealth+2

Condition Immunities

prone

Senses

darkvision 60ft., passive Perception 8

Languages

None

Challenge

4 (1,100 XP)

Proficiency Bonus

+2

---

Locking Mandibles. A creature grappled by the gigantopede has disadvantage on Strength checks to end the grapple.

Actions

Bite. Melee Weapon Attack. +5 to hit, reach 10ft., one target. Hit. 14 (2d10 + 3) piercing damage, plus 10 (3d6) poison damage. If the target is a large or smaller creature it is grappled (escape DC 13). Until the grapple ends, the gigantopede can only bite the grappled creature and has advantage on attack rolls against the grappled creature to do so.

Slash. Melee Weapon Attack. +5 to hit, reach 10ft., one target. Hit. 17 (4d6 + 3) slashing damage.

Gilded Platebug

Small Beast, Unaligned

---

Armor Class

25 (natural armor)

Hit Points

315 (46d6 + 138)

Speed

40ft., burrow, 20ft., climb 40ft.

---

STR	DEX	CON	INT	WIS	CHA
22 (+6)	21 (+5)	16 (+3)	2 (-4)	14 (+2)	2 (-4)

---

Saving Throws

Str+11, Dex+10, Con+8

Damage Immunities

bludgeoning, piercing, and slashing damage from nonmagcial attacks

Condition Immunities

exhaustion, paralyzed, poisoned

Senses

blindsight 60 ft., passive Perception 19

Languages

None

Challenge

13 (10,000 XP)

Proficiency Bonus

+5

---

Gilded Carapace. The gilded platebug has advantage on Dexterity (Stealth) checks to hide in piles of gold ore/coins.

Iron Skin. The gilded platebug has a damage threshold for all bludgeoning, piercing, and slashing damage types of 10. If a weapon or spell attack that deals either bludgeoning, piericng, or slashing damage does less than 10 damage, it instead deals no damage.

Magic Resistance. The gilded platebug has advantage on saving throws against spells and other magical effects.

Spider Climb. The gilded platebug can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Actions

Multiattack. The gilded platebug makes two spiked tail attacks.

Spiked Tail. Melee Weapon Attack. +10 to hit, reach 5 ft., one target. Hit: 26 (4d8 + 6) piercing damage. The target must succeed on a DC 18 Strength saving throw or be knocked prone.

Blinding Carapace (Recharge 5-6). The metal carapace suddenly glows with a bright sheen of light. Each creature within 15ft. of the gilded platebug must succeed a DC 18 Constitution saving throw or become blind for 1 minute. Targets can repeat the saving throw at then end of their turn to end the effect on a success.

Metallic Scream (Recharge 6). The gilded platebug suddenly clamps its mandibles together and grates them against one another. All creatures that are not deafened within 30ft. of the gilded platebug must succeed a DC 18 Constitution saving throw or become stunned until the end of their next turn.

Glacial Centipede

Gargantuan Beast, Unaligned

---

Armor Class

23 (natural armor)

Hit Points

575 (30d20 + 240)

Speed

45ft., burrow 60ft, climb 45ft

---

STR	DEX	CON	INT	WIS	CHA
29 (+9)	16 (+3)	26 (+8)	1 (-5)	10 (0)	3 (-4)

---

Saving Throws

Str+15, Dex+9, Con+14, Wis+6

Skills

Perception+6, Stealth+9

Damage Vulnerabilities

fire

Damage Resistances

poison; bludgeoning, piercing, and slashing from nonmagical attacks

Damage Immunities

cold

Senses

darkvision 60 ft., tremorsense 60ft. passive Perception 16

Languages

None

Challenge

20 (25,000 XP)

Proficiency Bonus

+6

---

Freezing Body. A creature that touches the centipede or hits it with a melee attack while within 5 feet of it takes 10 (3d6) cold damage.

Legendary Resistance. If the centipede fails a saving throw, it can choose to succeed instead.

Tunneler. The centipede can burrow through solid rock and ice at half its burrow speed and leaves a 10-foot-diameter tunnel in its wake. If the centipede has a creature grappled withits Bite, the grappled creature takes 3 (1d6) bludgeoning damage for every 5ft. moved while grappled. Grapple checks also have disadvantage to break free.

Actions

Bite. Melee Weapon Attack. +15 to hit, reach 10 ft., one creature. Hit. 47 (7d10 + 9) piercing damage and the target is grappled (escape DC 24). Until this grapple ends, the target is restrained, and the centipede can’t bite another target.

Tail Swipe. Melee Weapon Attack. +15 to hit, reach 15 ft., one target. Hit. 30 (6d6 + 9) bludgeoning damage plus 14 (4d6) cold damage, and the target must succeed on a DC 24 Strength saving throw or be knocked prone.

Screech (3/day). The centipede emits a deafening roar. Each creature within 120 feet of the centipede and able to hear it must make a DC 24 Constitution saving throw, taking 27 (8d12) thunder damage and becoming deafened for 1 minute on a failed save, or half as much damage and not deafened on a successful one.

Legendary Actions

The centipede can take 3 legendary actions, choosing from the options below. Only one legendary action can be used at a time and only at the end of another creature’s turn. The centipede regains spent legendary actions at the start of its turn.

Tail Swipe. The centipede makes one tail swipe attack.

Move. The centipede burrows underground and moves up to its burrowing speed without provoking attacks of opportunity.

Icy Burst. The centipede slams its body onto the ground, causing an icy burst. Each creature within 20 feet of the centipede must make a DC 24 Dexterity saving throw, taking 33 (6d10) cold damage on a failed save, or half as much damage on a successful one. The ground in the area becomes difficult terrain until the end of the centipede’s next turn.

Golua

Large Beast/Fey, Neutral

---

Armor Class

15 (natural armor)

Hit Points

42(1d4 + 5)

Speed

25ft.

---

STR	DEX	CON	INT	WIS	CHA
18 (+4)	14 (+2)	14 (+2)	12 (+1)	16 (+3)	13 (+1)

---

Saving Throws

Dex+5, Wis+6, Cha+4

Skills

Insight+6, Stealth+5

Senses

passive Perception 13

Languages

Understands Common and Sylvan, but cannot speak.

Challenge

8 (3,900 XP)

Proficiency Bonus

+3

---

Charge. If the golua moves at least 20 feet straight toward a target and then hits it with a gore attack on the same turn, the target takes an extra 10 (3d6) piercing damage.

Keen Senses. The golua has advantage on Wisdom (Perception) checks that rely on hearing or smell.

Fey Heritage. The golua also counts as both a Beast and a Fey for the purposes of spells and effects.

Magical Resistance. The golua has advantage on saving throws against spells and other magical effects.

Actions

Multi-attack. The golua can make two attacks: one gore and one with its claws.

Gore. Melee Weapon Attack. +7 to hit, reach 5 ft., one target. Hit. 12 (2d8 + 4) piercing damage.

Claws. Melee Weapon Attack. +7 to hit, reach 5 ft., one target. Hit. 10 (1d10 + 4) slashing damage.

Fey Presence (1/short or long rest). The golua can channel the magic of the Feywild and cause creatures within 30 feet of it to make a Wisdom saving throw (DC 16) or be charmed for 1 minute. The golua can’t use this feature again until it finishes a short or long rest.

Great Brute Crocodile

Gargantuan Beast, Unaligned

---

Armor Class

13 (natural armor)

Hit Points

450 (30d20 + 150)

Speed

40ft., swim 60ft.

---

STR	DEX	CON	INT	WIS	CHA
30 (+10)	12 (+1)	20 (+5)	2 (-4)	10 (0)	5 (-3)

---

Saving Throws

Str+16, Dex+7, Con+11

Skills

Stealth+7

Damage Immunities

bludgeoning, piercing, and slashing damage from non magcial attacks

Senses

passive Perception 10

Languages

None

Challenge

18 (20,000 XP)

Proficiency Bonus

+6

---

Hold Breath. The crocodile can hold its breath for 1 hour.

Legendary Resistances (3/day). If the crocidle fails a saving throw, it can choose to succeed instead.

Actions

Multiattack. The crocodile makes two tail attacks or three pummel attacks.

Bite. Melee Weapon Attack. +16 to hit, reach 10 ft., one target. Hit. 48 (7d10 + 10) piercing damage. If the target is a creature, it is grappled (escape DC 20). Until this grapple ends, the target is restrained, and the crocodile can’t bite another target.

Pummel. Melee Weapon Attack. +16 to hit, reach 10 ft., one target. Hit. 13 (1d6 + 10) bludgeoning damage

Tail. Melee Weapon Attack: +16 to hit, reach 15 ft., one target. Hit. 21 (2d10 + 10) bludgeoning damage.

Roar (Recharge 5-6). The crocodile roars at such a power it can crush boulders. Any creatures within a 30ft. cone in front of the crocodile must succeed a DC 20 Dexterity saving throw, taking 65 (10d12) thunder damage on a failed save, or half as much on a successful save. Targets that fail the saving throw by 10 or more are deafened for 1 minute. Deafened creatures can repeat the saving throw at the end of their turns, ending it on a success. If the crocodile has a grappled target it ins jaws, it cannot use this feature.

Legendary Actions

The crocodile can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature’s turn. The crocodile regains spent legendary actions at the start of its turn.

Move. The crocodile moves up to half its speed.

Chomp (2 Actions). The crocodile crushes a grappled creature in it’s jaws. The target takes 35 (10d6) piercing damage.

Deathroll (2 Actions.) The crocodile violently spins in place on the ground, thrashing at anything near it. Any creature within 15ft. of the crocodile must make a DC 20 Dexterity saving throw, taking 26 (4d12) bludgeoning damage on a failed save or half as much on a successful save. If the crocodile has a creature grappled in its jaws, the grappled creature rolls the save at disadvantage.

Great Grub

Small Beast, Unaligned

---

Armor Class

13 (natural armor)

Hit Points

18 (4d6 + 4)

Speed

10ft., climb 10ft.

---

STR	DEX	CON	INT	WIS	CHA
6 (-2)	14 (+2)	12 (+1)	1 (-5)	7 (-2)	2 (-4)

---

Damage Vulnerabilities

fire

Senses

blindsight 10 ft., passive Perception 8

Languages

None

Challenge

1/4 (50 XP)

Proficiency Bonus

+2

---

Blood Drain. When the grub hits a creature with its bite attack, it latches onto a creature and begins to drain its blood. The target must succeed on a DC 11 Constitution saving throw or take 7 (2d6) piercing damage at the start of each of its turns and the grub regains hit points equal to the damage dealt. The grub can be removed with a DC 10 Strength (Athletics) check or can be removed by another creature using the Help action.

Spider Climb. The grub can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Actions

Bite. Melee Weapon Attack. +4 to hit, reach 5 ft., one target. Hit. 4 (1d4 + 2) piercing damage.

Greater Savannah Leech

Huge Beast, Unaligned

---

Armor Class

14 (natural armor)

Hit Points

195 (17d12 + 85)

Speed

20ft., burrow 20ft.

---

STR	DEX	CON	INT	WIS	CHA
22 (+6)	4 (-3)	20 (+5)	1 (-5)	8 (-1)	1 (-5)

---

Saving Throws

Str+11, Con+10,

Skills

Perception+4, Stealth+7

Damage Immunities

acid

Condition Immunities

blinded, deafened

Senses

blindsight 60 ft. (blind beyond this), passive Perception 14

Languages

None

Challenge

13 (10,000 XP)

Proficiency Bonus

+5

---

Ambusher. The leech has advantage on attack rolls against any creature it has surprised.

Tunneler. The leech can burrow through solid rock up to its burrow speed and leaves a 10ft. hole in its wake.

Underground Camouflage. The leech has advantage on Dexterity (Stealth) checks made to hide while underground.

Actions

Bite. Melee Weapon Attack. +11 to hit, reach 10 ft., one creature. Hit. 24 (4d8 + 6) piercing damage plus 11 (2d10) acid damage.

Swallow. The leech makes one bite attack against a Large or smaller creature. If the attack hits, the target is swallowed. A swallowed creature is blinded and restrained, it has total cover against attacks and other effects outside the leech, and it takes 33 (6d10) acid damage at the start of each of the leech’s turns. The leech can have only one creature swallowed at a time. If the leech takes 30 damage or more on a single turn from a creature inside it, the leech must succeed on a DC 20 Constitution saving throw at the end of that turn or regurgitate the swallowed creature, which falls prone in a space within 10 feet of the leech. If the leech dies, a swallowed creature is no longer restrained by it and can escape from the corpse by using 20 feet of movement, exiting prone.

Mucus (Recharge 6). The leech spews out a 15ft. cone of sticky mucus to trap its prey. Any creature within the cone must succeed on a DC 17 Dexterity saving throw or become restrained. Restrained creatures can use their action to make a DC 17 Strength (Athletics) check at the end of their turn, freeing themselves on a success.

Hexdrinker

Medium Beast, Unaligned

---

Armor Class

15 (natural armor)

Hit Points

75 (10d8 + 30)

Speed

30ft., climb 30ft.

---

STR	DEX	CON	INT	WIS	CHA
14 (+2)	18 (+4)	16 (+3)	5 (-3)	12 (+1)	6 (-2)

---

Skills

Stealth+7

Senses

blindsight 10 ft., passive Perception 11

Languages

None

Challenge

5 (1,800 XP)

Proficiency Bonus

+3

---

Magic Drain. When the hexdrinker hits with a bite attack, it can choose to drain magic from its target instead of dealing damage. The target must succeed on a DC 14 Constitution saving throw or lose one spell slot of the hexdrinker’s choice. If the target has no spell slots left, the hexdrinker drains the target’s innate magical abilities, imposing disadvantage on all of its spell attacks and reducing the save DCs of its spells by 2 until the target finishes a long rest. The hexdrinker heals for 2 (1d4) per spell slot drained in this way.

Magic Resistance. The hexdrinker has advantage on saving throws against spells and other magical effects.

Actions

Bite. Melee Weapon Attack. +7 to hit, reach 5 ft., one target. Hit. 9 (1d10 + 4) piercing damage, or it uses the effects of Magic Drain.

Reactions

Magic Absorption. When the hexdrinker is subjected to a spell that targets only the hexdrinker, it can use its reaction to absorb the spell, gaining temporary hit points equal to the spell’s level (maximum of 5th level). The hexdrinker then has advantage on its next magic drain attack until the end of its next turn. Cantrips negated in this way give the hexdrinker 1 temporary hit point.

Hive Hunter

Medium Beast, Unaligned

---

Armor Class

16 (natural armor)

Hit Points

120 (16d8 + 48)

Speed

25ft., fly 80 ft.

---

STR	DEX	CON	INT	WIS	CHA
14 (+2)	18 (+4)	16 (+3)	2 (-4)	14 (+2)	6 (-2)

---

Damage Resistances

poison

Condition Immunities

charmed

Senses

darkvision 60 ft., passive Perception 12

Languages

can communicate with Wasps telepathcially 120ft.

Challenge

9 (5,000 XP)

Proficiency Bonus

+4

---

Drone. The wings from the hunter emmit a steady drone that disrupts other creatures around it. Any non insect creature within 10ft. of the hunter must succeed a DC 16 Constituion saving throw or become deafened for 1 minute. Creatures that fail the save can repeat the save at the end of their turns, ending it on a success. Creatures that pass the save are immune to the hunter’s Drone for 24 hours.

Evasion. If the hunter is subjected to an effect that allows it to make a Dexterity saving throw to take only half damage, it instead takes no damage if it succeeds on the saving throw, and only half damage if it fails.

Hive-Mind. The hunter can telepathically communicate with any number of wasps within 120ft. of itself.

Actions

Multiattack. The hunter makes three attacks with its stinger.

Stinger. Melee Weapon Attack: +8 to hit, reach 5ft., one target. Hit 8 (1d8 + 4) piercing damage. Once per turn, the hunter can choose to inject a poison into a target it hits with its stinger. On a hit, the target must succeed a DC 16 Constitution saving throw, taking 22 (4d10) poison damage on a failed save or half as much on a successful save.

Swarm Summon (3/day). The hunter calls for the aid of any wasps within 120ft of itself. The hunter summons 1d8 Swarm of Wasps that appear within a 30ft. radius of the hunter, acting on their own initiative. There is a 5% chance the hunter calls another Hive Hunter to its aid instead.

Ironclad Krovod

Huge Beast, Unaligned

---

Armor Class

20 (heavy plate mail)

Hit Points

180 (19d12 + 57)

Speed

25ft.

---

STR	DEX	CON	INT	WIS	CHA
24 (+7)	10 (0)	16 (+3)	2 (-4)	10 (0)	6 (-2)

---

Senses

passive Perception 10

Languages

none

Challenge

8 (3,900 XP)

Proficiency Bonus

+3

---

Trampling Charge. If the Krovod moves at least 20ft. straight towards a creature and then hits it with its Gore attack on the same turn, the target must succeed a DC 17 Strength saving throw or be knocked prone. If the target is knocked prone, the krovod can make 1 stomp attack as a bonus action.

Walking Platform. The krovod’s back has a 10ft. by 10ft. platform on its back. This platform may be fitted with 2 siege weapons and can comfortable carry 4 medium sized or smaller creatures. Creatures on top of the platform must succeed a DC 12 Strength (Athletics) check whenever the krovod uses its Trampling Charge or fall prone on the platform.

Actions

Gore. Melee Weapon Attack: +10 to hit, reach 10ft., one target. Hit 23 (3d10 + 7) piercing damage.

Stomp. Melee Weapon Attack: +10 to hit, reach 5ft., one target. Hit 25 (3d12 + 7) bludgeoning damage.

Jade Mite Swarm

Medium Swarm of Tiny Beasts, Unaligned

---

Armor Class

15 (natural armor)

Hit Points

82 (11d8 + 33)

Speed

20ft., burrow 5ft., climb 20ft.

---

STR	DEX	CON	INT	WIS	CHA
3 (-4)	17 (+3)	14 (+2)	1 (-5)	7 (-2)	1 (-5)

---

Damage Resistances

bludgeoning, piercing, slashing

Condition Immunities

charmed, firghtened, grappled, paralyzed, pertrified, prone, restrained, stunned

Senses

blindsight 10 ft., passive Perception 19

Languages

None

Challenge

5 (1,800 XP)

Proficiency Bonus

+3

---

Jade Mite Poison. Any creature that takes piercing damage from the swarm’s razor carapace or from the bite attack must succeed on a DC 14 Constitution saving throw or become poisoned for 1 minute. While poisoned in this way, the creature takes 14 (4d6) poison damage at the start of each of its turns. The creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Razor Carapace. Any creature that starts its turn in the swarm’s space takes 11 (2d10) piercing damage from the jade mites’ sharp carapaces.

Swarm. The swarm can occupy another creature’s space and vice versa, and the swarm can move through any opening large enough for a tiny Jade Mite. The swarm can’t regain hit points or gain temporary hit points.

Actions

Bites. Melee Weapon Attack: +6 to hit, reach 0ft., one target. Hit 15 (3d8 + 3) piercing damage.

Jotundile

Huge Beast, Unaligned

---

Armor Class

15 (natural armor)

Hit Points

263 (22d12 + 120)

Speed

40ft., swim 30ft.

---

STR	DEX	CON	INT	WIS	CHA
24 (+7)	14 (+2)	20 (+5)	4 (-3)	14 (+2)	9 (-1)

---

Skills

Athletics+12, Perception+7

Damage Resistances

bludgeoning, piercing, slashing from nonmagical attacks

Senses

darkvision 60 ft., passive Perception 17

Languages

None

Challenge

13 (10,000 XP)

Proficiency Bonus

+5

---

Amphibious. The jotundile can breathe both air and water.

Apex Predator. Beasts of CR 5 or lower have disadvantage on saving throws againts the jotundiles Frightful Presence.

Keen Smell. The jotundile has advanatge on Wisodm (Perception) checks that rely on smell.

Actions

Multiattack. The jotundile can use its Frightful Presence and then make three attacks; one with its bite and two with its claws.

Bite. Melee Weapon Attack. +12 to hit, reach 10ft., one target. Hit. 34 (6d8 + 7) piercing damage. If the target is a medium or smaller creature, it is grappled (escape DC 17). Until this grapple ends, the jotundile cannot bite another creature, but rolls at advantage for bite attacks against the grappled creature.

Claws. Melee Weapon Attack. +12 to hit, reach 5ft., one target. Hit. 21 (4d6 + 7) slashing damage.

Frightful Presence. Each creature that can see the jotundile within 120ft. of it and are aware of it must succeed a DC 17 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on a success. On a success, the creature is immune to the effects of the jotundiles Frightful Presence for 24 hours.

Jotundile, Glacial

Huge Beast, Unaligned

---

Armor Class

18 (natural armor)

Hit Points

350 (20d12 + 160)

Speed

40ft., swim 60ft.

---

STR	DEX	CON	INT	WIS	CHA
26 (+8)	16 (+3)	26 (+8)	3 (-4)	10 (0)	8 (-1)

---

Saving Throws

Str+14, Dex+9, Con+14

Skills

Stealth+9

Damage Resistances

bludgeoning, piercing, and slashing from nonmagical attacks

Damage Immunities

cold

Senses

darkvision 60 ft., passive Perception 10

Languages

None

Challenge

20 (25,000 XP)

Proficiency Bonus

+6

---

Amphibious. The jotundile can breathe air and water.

Freezing Aura. Any creature that starts its turn within 10 feet of the jotundile takes 10 (3d6) cold damage.

Legendary Resistance (3/day). If the jotundile fails a saving throw, it can choose to succeed instead.

Actions

Multiattack. The jotundile can make one bite and one claw attacks.

Bite. Melee Weapon Attack. +14 to hit, reach 10 ft., one target. Hit. 34 (4d12 + 8) piercing damage plus 10 (3d6) cold damage.

Claw. Melee Weapon Attack. +14 to hit, reach 10 ft., one target. Hit. 25 (4d8 + 8) slashing damage plus 10 (3d6) cold damage.

Tail Slap. Melee Weapon Attack. +14 to hit, reach 20 ft., one target. Hit. 28 (4d10 + 8) bludgeoning damage plus 10 (3d6) cold damage.

Frenzy (1/day). The jotundile can use its action to enter a frenzy, making two bite attacks and two claw attacks on each of its turns until the frenzy ends. While in the frenzy, the jotundile attacks the nearest creature to it, even if it is allied with the jotundile or another jotundile. Attacks against the jotundile have advantage while it is in a frenzy. The frenzy lasts for 1 minute or until the jotundile is incapacitated.

Legendary Actions

The jotundile can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature’s turn. The jotundile regains spent legendary actions at the start of its turn.

Detect. The jotundile makes a Wisdom (Perception) check.

Tail Slap. The jotundile makes one tail slap attack.

Roar (Costs 2 Actions). The jotundile unleashes a mighty roar. Each creature within 60 feet of the jotundile that can hear it must succeed on a DC 22 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Koibra

Medium Beast, Unaligned

---

Armor Class

14

Hit Points

65 (10d8 + 20)

Speed

40ft., swim 50ft.

---

STR	DEX	CON	INT	WIS	CHA
14 (+2)	18 (+4)	15 (+2)	3 (-4)	14 (+2)	7 (-2)

---

Skills

Perception+5, Stealth+7

Senses

blindsight 60 ft., passive Perception 15

Languages

None

Challenge

5 (1,800 XP)

Proficiency Bonus

+3

---

Amphibious. The koibra can breathe in air and water

Keen Smell. The koibra has advantage on Wisdom (Perception) checks that rely on smell.

Lucky. Creatures have disadvantage on attack rolls against the koibra. The koibra also has advantage on any saving throws against spells and other magical effects.

Actions

Multiattack. The koibra makes three attacks; one with its bite and two with its claws.

Bite. Melee Weapon Attack. +7 to hit, reach 5 ft., one target. Hit. 10 (1d12 + 4) piercing damage plus 7 (2d6) poison damage, and the target must succeed on a DC 13 Constitution saving throw or become poisoned for 1 minute. While poisoned in this way, the target is also paralyzed. The target can repeat the saving throw at the end of each of its turns, ending the effect on a success.

Claws. Melee Weapon Attack. +7 to hit, reach 5 ft., one target. Hit. 11 (2d6 + 4) slashing damage.

Land Whale

Large Beast, Unaligned

---

Armor Class

18 (natural armor)

Hit Points

136(13d10 + 65)

Speed

20ft., burrow 20ft.

---

STR	DEX	CON	INT	WIS	CHA
19 (+4)	3 (-4)	20 (+5)	5 (-3)	12 (+1)	13 (+1)

---

Condition Immunities

prone

Senses

darkvision 60 ft., passive Perception 11

Languages

none

Challenge

8 (3,900 XP)

Proficiency Bonus

+3

---

School Protection. The land whale’s AC increases by 1 if at least one of the whale’s allies is within 5 feet of the creature and the ally isn’t incapacitated.

Actions

Slam. Melee Weapon Attack. +7 to hit, reach 5 ft., one target. Hit. 20 (3d10 + 4) bludgeoning damage. If the target is a creature, it must succeed on a DC 16 Strength save throw or be knocked prone.

Sand Throw. The land whale flings sand in a 30-foot cone. Each creature in that area must make a DC 16 Dexterity saving throw, taking 22 (4d10) piercing damage on a failed save, or half as much damage on a successful one.

Maned Alihog

Large Beast, Unaligned

---

Armor Class

15 (natural armor)

Hit Points

126 (11d10 + 66)

Speed

40ft., swim 30ft.

---

STR	DEX	CON	INT	WIS	CHA
21 (+5)	14 (+2)	16 (+3)	2 (-4)	10 (0)	5 (-3)

---

Skills

Athletics+8, Perception+3

Senses

passive Perception 14

Languages

None

Challenge

6 (2,300 XP)

Proficiency Bonus

+3

---

Blood Frenzy. The alihog has advantage on melee attack rolls against any creature that doesn’t have all its hit points.

Charge. If the alihog moves at least 20 feet straight towards a target and then hits it with a tusk attack on the same turn, the target takes an extra 11 (2d10) piercing damage and must succeed on a DC 15 Strength saving throw or be knocked prone.

Hold Breath. The alihog can hold its breath for 30 minutes.

Keen Smell. The alihog has advantage on Wisdom (Perception) checks that rely on smell.

Relentless (Recharges after a Short or Long Rest). If the alihog takes 20 damage or less that would reduce it to 0 hit points, it is reduced to 1 hit point instead.

Actions

Multiattack. The alihog makes two attacks with its tusks.

Tusk. Melee Weapon Attack. +8 to hit, reach 5 ft., one target. Hit: 18 (3d8 + 5) piercing damage.

Tail Swipe. Melee Weapon Attack. +8 to hit, reach 10 ft., one target. Hit: 14 (3d6 + 5) bludgeoning damage and the target must succeed on a DC 15 Strength saving throw or be knocked prone.

Mesa Crawler

Gargantuan Beast, Unaligned

---

Armor Class

17 (natural armor)

Hit Points

42(9d20 + 63)

Speed

25ft., 10ft. burrow.

---

STR	DEX	CON	INT	WIS	CHA
22 (+6)	6 (-2)	25 (+7)	2 (-4)	10 (0)	2 (-4)

---

Damage Vulnerabilities

thunder

Damage Resistances

bludgeoning, piercing, and slashing from nonmagical attacks.

Condition Immunities

prone

Senses

darkvision 60 ft., passive Perception 10

Languages

None

Challenge

10 (5,900 XP)

Proficiency Bonus

+4

---

Fales Appearance. While partially submerged underground and motionless, the crawler looks identical to a towering pillar of clay.

Towering Body. The crawler carries a towering cliff face on its back, made of clay deposits. The cliff face provides 3/4 cover to creatures standing behind it, as well as to the crawler itself.

Unstoppable. The crawler is immune to any effect that would forcefully move the crawler against its will, with the exception of teleportation (i.e. banishment, plane shift. etc.)

Actions

Multiattack. The crawler makes either three attacks with its horn or two attacks with its mandibles.

Horn. Melee Weapon Attack. +10 to hit, reach 10 ft., one target. Hit: 11 (1d10 + 6) piercing damage.

Mandibles. Melee Weapon Attack. +10 to hit, reach 5 ft., one target. Hit: 15 (2d8 + 6) piercing damage plus 7 (2d6) acid damage.

Moray Serpent

Gargantuan Beast, Unaligned.

---

Armor Class

17 (natural armor)

Hit Points

350 (20d20 + 140)

Speed

0ft., swim 80ft.

---

STR	DEX	CON	INT	WIS	CHA
26 (+8)	16 (+3)	24 (+7)	2 (-4)	12 (+1)	6 (-2)

---

Saving Throws

Str+14, Dex+9, Wis+7

Skills

Perception+7, Stealth+9

Damage Resistances

cold

Senses

darkvision 120 ft., passive Perception 17

Languages

None

Challenge

18 (20,000 XP)

Proficiency Bonus

+6

---

Bioluminescence. The serpent casts a bright light off of its body in a 30ft. radius of bright light and an additional 30ft. of dim light. Creatures within 60ft. of the serpent that can see the serpent illuminated in this way must make a DC 19 Wisdom saving throw or become charmed by the serpent for 1 minute and must spend their action getting as close to the serpent as possible. On a successful save the target is immune to the serpents Bioluminescence for 24 hours. When the charmed creature takes damage it can repeat the saving throw, ending the effect on itself on a success.

Swift Swimmer. The serpent does not provoke attacks of opportunity while underwater.

Waterbreathing. The serpent can only breathe underwater.

Actions

Multiattack. The serpent makes two attacks with its bite.

Bite. Melee Weapon Attack. +14 to hit, reach 10 ft., one creature. Hit. 24 (3d10 + 8) piercing damage. If the target is a creature, it must succeed a DC 19 Constitution saving throw or become wounded. At the start of its turn, the wounded creature takes 11 (2d10) necrotic damage until the wound is closed with either a DC 19 Wisdom (Medicine) check or healed with a healing spell of 3rd level or higher.

Whirlpool (3/day). The serpent rapidly swims in circles, generating a powerful whirlpool effect. The whirlpool lasts for 1 minute, has a radius of 45ft., and is considered difficult terrain to any creature aside form the serpent. Each creature within the area must make a DC 19 Strength (Athletics) check or be pulled 15ft. closer to the center of the whirlpool. When a creature is pulled to the center of the whirlpool, it is restrained and cannot breathe, even if it has a way to do so underwater (either through magic or natural means) and takes 18 (4d8) bludgeoning and 18 (4d8) cold damage each time it starts its turn at the center of the whirlpool.

Muck Dipper

Tiny Beast, Unaligned

---

Armor Class

12

Hit Points

7 (2d4 + 2)

Speed

20ft., 30ft.

---

STR	DEX	CON	INT	WIS	CHA
4 (-3)	14 (+2)	12 (+1)	1 (-5)	10 (0)	4 (-3)

---

Skills

Stealth +4

Senses

passive Perception 10

Languages

None

Challenge

1/8 (25 XP)

Proficiency Bonus

+2

---

Amphibious. The muck dipper can breathe air and water.

Camouflage. The muck dipper has advantage on Dexterity (Stealth) checks made to hide in muddy terrain.

Slimey. The muck dipper has advantage on freeing itself from grapple checks and grapple checks made to restrain the muck dipper are made at disadvantage.

Actions

Tounge. Melee Weapon Attack: +4 to hit, reach 5ft., one target. Hit 1 bludgeoning damage.

Nimbus Manta Ray

Gargantuan Beast, Unaligned

---

Armor Class

15 (natrual armor)

Hit Points

150 (12d20 + 36)

Speed

5ft., fly 100ft.

---

STR	DEX	CON	INT	WIS	CHA
22 (+6)	10 (0)	16 (+3)	2 (-4)	10 (0)	6 (-2)

---

Damage Resistances

cold, lightning; bludgeoning, piercing, and slashing from nonmagical attacks

Senses

passive Perception 10

Languages

None

Challenge

5 (1,800 XP)

Proficiency Bonus

+3

---

Beast of Burden. The manta ray can carry up to 5 tons before becoming encumbered.

Current Sense. The manta ray is not hindered by heavy clouds/fog conditions.

Actions

Tail Slam. Melee Weapon Attack. +9 to hit, reach 15 ft., one target. Hit: 21 (3d8 + 6) bludgeoning damage.

Thunderous Flap (Recharge 6). The manta ray beats its powerful wings, creating a powerful shockwave. Each creature within a 30-foot radius of the manta ray must make a DC 15 Constitution saving throw, taking 22 (4d10) thunder damage on a failed save and being pushed back 15ft., or half as much damage on a successful one and not being pushed back.

Lightning Aura (1/day). The manta ray creates an electric field around itself and must maintain concentration as if concentrating on a spell. Each creature within 10ft. of the manta ray while the aura is active or enters the aura takes 11 (2d10) lightning damage. The aura lasts for 1 minute.

Pitjaw

Gargantuan Beast, Unaligned

---

Armor Class

18 (natural armor)

Hit Points

300 (24d20 + 96)

Speed

40ft., burrow 20ft.

---

STR	DEX	CON	INT	WIS	CHA
22 (+6)	10 (0)	18 (+4)	2 (-4)	10 (0)	6 (-2)

---

Saving Throws

Str+11, Con+9

Skills

Perception+5, Stealth+5

Damage Immunities

bludgeoning, piercing, and slashing from nonmagical attacks

Senses

tremorsense 60 ft., passive Perception 15

Languages

None

Challenge

15 (13,000 XP)

Proficiency Bonus

+5

---

Sand Vortex. The pitjaw’s jaw can hold a 15ftx15ft area of sand. As a reaction, the pitjaw can suddenly inhale, dragging anything within the area down into its gullet. Any creatures within the 15x15 square must make a DC 17 Dexterity saving throw or be pulled into the pitjaw, taking 33 (6d10) bludgeoning damage. While swallowed, the target is blinded and restrained, it has total cover against attacks and other effects outside the pitjaw, and it takes 21 (6d6) acid damage at the start of each of the pitjaw’s turns. A pitjaw can have up to 3 creatures swallowed at a time. If the pitjaw takes 30 damage or more on a single turn from the swallowed creature, the pitjaw must succeed on a DC 15 Constitution saving throw at the end of that turn or regurgitate the creature, which falls prone in a space within 10 feet of the pitjaw. If the pitjaw dies, a swallowed creature is no longer restrained by it and can escape from the corpse by using 15 feet of movement, exiting prone.

False Appearance. While motionless and mostly buried with its jaw filled, the pitjaw looks like a large weathered skull/rock formation.

Actions

Claws. Melee Weapon Attack: +11 to hit, reach 10ft., one target. Hit 27 (6d6 + 6) slashing damage.

Tail Slam. Melee Weapon Attack: +11 to hit, reach 15ft., one target. Hit 24 (4d8 + 6) bludgeoning damage, and any creatures within 10ft. of the tail slam must make a DC 17 Strength saving throw or be knocked prone.

Scoop. The pitjaw charges forward up to its movement speed, dragging its jaw through the sand. Any creature in the pitjaws charge must make a DC 17 Dexterity saving throw or become swallowed by the pitjaw, taking 33 (6d10) bludgeoning damage. If no creatures fail the saving throw, the pitjaw can instead fill its jaw with sand.

Sand Blast (Requires pitjaw’s Jaw to be filled). The pit jaw violently expels sand its holding in its jaw in a 45ft. cone. Any creature within this cone must make a DC 17 Dexterity saving throw, taking 33 (6d10) bludgeoning damage on a failed save or half as much on a successful save.

Rot Maw

Small Beast, Unaligned.

---

Armor Class

18 (natrual armor)

Hit Points

127 (17d6 + 68)

Speed

40ft., climb 40ft.

---

STR	DEX	CON	INT	WIS	CHA
12 (+1)	20 (+5)	18 (+4)	2 (-4)	10 (0)	6 (-2)

---

Skills

Stelath+8

Damage Resistances

necrotic

Damage Immunities

poison

Condition Immunities

poisoned

Senses

darkvision 60 ft., passive Perception 10

Languages

None

Challenge

8 (3,900 XP)

Proficiency Bonus

+3

---

Necrosis. Any creature that becomes afflicted with Necrosis from the Rotmaw takes 5 (1d10) necrotic damage at the start of their turn and has their maximum hit points reduced by the same amount. Necrosis lasts until the target is targeted with Lesser Restoration or similar magic. If the afflicted target’s maximum hit points reaches 0, it dies. For the sakes of condition immunity, Necrosis counts as a poisoned condition.

Spider Climb. The Rotmaw can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Actions

Bite. Melee Weapon Attack: +8 to hit, reach 5ft., one target. Hit 17 (3d8 + 5) piercing damage plus 14 (4d6) poison damage and the target must succeed a DC 18 Constitution saving throw or become afflicted with Necrosis.

Bile Spray. The Rotmaw spews forth a torrent of poisonous smog from its mouth. All creatures within a 20ft. cone in front of the Rotmaw must succeed a DC 18 Constitution saving throw, taking 44 (8d10) poison damage on a failed save and becoming afflicted with Necrosis. Successful saves take half damage and are not afflicted.

Sabre-Seal

Large Beast, Unaligned

---

Armor Class

16 (natural armor)

Hit Points

120 (16d10 + 32)

Speed

20ft., swim 80ft.

---

STR	DEX	CON	INT	WIS	CHA
20 (+5)	14 (+2)	15 (+2)	2 (-4)	12 (+1)	7 (-2)

---

Skills

Athletics+8, Perception+4

Damage Resistances

cold

Senses

passive Perception 14

Languages

None

Challenge

6 (2,300 XP)

Proficiency Bonus

+3

---

Charge. If the sabre-seal moves at least 20 feet straight toward a target and then hits it with a bite attack on the same turn, the target takes an extra 9 (2d8) piercing damage. If the target is a creature, it must succeed on a DC 16 Strength saving throw or become grappled by the sabre-seal. The sabre-seal moves at half its movement speed while grappling another creature. Grappled creatures can make a DC 16 Strength (Athletics) check to break free as an action on their turn.

Homefield Advantage. The sabre-seal is not affected by difficult terrain cause by nonmagical ice.

Keen Smell. The sabre-seal has advantage on Wisdom (Perception) checks that rely on smell.

Actions

Multiattack. The sabre-seal can make three attacks: one with its bite and two with its tail.

Bite. Melee Weapon Attack: +8 to hit, reach 5ft., one target. Hit 14 (2d8 + 5) piercing damage

Tail. Melee Weapon Attack: +8 to hit, reach 10ft., one target. Hit 10 (1d10 + 5) bludgeoning damage.

Sandstalker

Large Beast, Unaligned

---

Armor Class

16 (natural armor)

Hit Points

199 (19d10 + 95)

Speed

50ft., burrow 30ft.

---

STR	DEX	CON	INT	WIS	CHA
23 (+6)	14 (+2)	20 (+5)	2 (-4)	10 (0)	6 (-2)

---

Skills

Stealth+6

Senses

darkvision 60 ft., tremorsense 20ft., passive Perception 10

Languages

None

Challenge

10 (5,900 XP)

Proficiency Bonus

+4

---

Keen Smell. The sandstalker has advantage on Wisdom (Perception) checks that rely on smell.

Sand Walk. The sandstalker is not affected by nonmagical difficult terrain created by sand/rocky conditions.

Actions

Multiattack. The sandstalker makes three attacks; one with its bite and two with its tail.

Bite. Melee Weapon Attack: +10 to hit, reach 5ft., one target. Hit 10 (1d8 + 6) piercing damage.

Tail. Melee Weapon Attack: +10 to hit, reach 15ft., one target. Hit 11 (1d10 + 6) bludgeoning damage and the target must make a DC 18 Strength Saving throw or be knocked prone.

Sand Attack. Ranged Weapon Attack: +6 to hit, range 30ft./90ft., one target. Hit 7 (2d4 + 2) piercing damage and the target has disadvantage on all attack rolls until the start of their next turn.

Sand Sifter

Small Beast, Unaligned

---

Armor Class

16 (natural armor)

Hit Points

19 (3d6 + 9)

Speed

20ft. burrow 10ft.

---

STR	DEX	CON	INT	WIS	CHA
14 (+2)	12 (+1)	16 (+3)	2 (-4)	14 (+2)	6 (-2)

---

Damage Resistances

bludgeoning, piercing, and slashing from nonmagical attacks

Senses

tremorsense 10 ft., passive Perception 10

Languages

None

Challenge

1/2 (100 XP)

Proficiency Bonus

+2

---

Burrower. The sand sifter can burrow through sand at half its movement speed. While burrowing, it has total cover against attacks and other effects outside the sand.

Evasive Retreat. When a creature makes a melee attack against the sand sifter and misses, the sand sifter can use its reaction to move up to its speed without provoking opportunity attacks.

Scuttler. The sand sifter can only move backwards.

Actions

Pincer. Melee Weapon Attack: +4 to hit, reach 5ft., one target. Hit 5 (1d6 + 2) slashing damage.

Sand Attack. Ranged Weapon Attack: +3 to hit, reach 20ft./80ft., one target. Hit The target has disadvantage on its next attack roll.

Scorch Squid

Huge Beast, Unaligned

---

Armor Class

17 (natural armor)

Hit Points

218 (19d12 + 95)

Speed

10ft., swim 60ft.

---

STR	DEX	CON	INT	WIS	CHA
22 (+6)	12 (+1)	20 (+5)	4 (-3)	12 (+1)	6 (-2)

---

Saving Throws

Dex+5, Con+9

Skills

Perception+5

Damage Vulnerabilities

cold

Damage Immunities

fire; bludgeoning, piercing, and slashing from nonmagical attacks

Senses

darkvision 60 ft., passive Perception 15

Languages

None

Challenge

11 (7,200 XP)

Proficiency Bonus

+4

---

Magmatic Aura. A creature that touches the squid or hits it with a melee attack while within 10 feet of it takes 14 (4d6) fire damage. Any nonmagical weapon made of metal or wood that hits the pudding corrodes. The weapon takes a permanent and cumulative −1 penalty to damage rolls. If its penalty drops to −5, the weapon is destroyed. Nonmagical ammunition made of metal or wood that hits the squid is destroyed after dealing damage.

Siege Monster. The squid deals double damage to objects and structures.

Actions

Multiattack. The squid makes three attacks; one with its beak and two with its tentacles.

Beak. Melee Weapon Attack: +10 to hit, reach 5ft., one target. Hit 15 (2d8 + 6) peircing damage.

Tentacle. Melee Weapon Attack: +10 to hit, reach 15ft., one target. Hit 9 (1d6 + 6) bludgeoning damage and the target is grappled (Escape DC 18). While the target is grappled in this way, it takes 14 (4d6) fire damage at the start of its turns.

Scorch Whale

Huge Beast, Unaligned

---

Armor Class

16 (natrual armor)

Hit Points

230 (20d12 + 100)

Speed

swim 60ft.

---

STR	DEX	CON	INT	WIS	CHA
24 (+7)	12(+1)	20 (+5)	3 (-4)	14 (+2)	6 (-2)

---

Saving Throws

Str+11, Con+9

Skills

Perception+6

Damage Vulnerabilities

cold

Damage Immunities

fire;bludgeoning, piercing, and slashing from nonmagical attacks.

Senses

blindsight 120 ft., passive Perception 16

Languages

None

Challenge

11 (7,200 XP)

Proficiency Bonus

+4

---

Echolocation. The whale can’t use its blindsight while deafened.

Hold Breath. The whale can hold its breath for 90 minutes.

Keen Hearing. The whale has advantage on Wisdom (Perception) checks that rely on hearing.

Charge. If the whale moves at least 20 feet straight toward a target and then hits it with a slam attack on the same turn, the target takes an extra 14 (4d6) bludgeoning damage.

Magmatic Aura. A creature that touches the whale or hits it with a melee attack while within 10 feet of it takes 14 (4d6) fire damage. Any nonmagical weapon made of metal or wood that hits the pudding corrodes. The weapon takes a permanent and cumulative −1 penalty to damage rolls. If its penalty drops to −5, the weapon is destroyed. Nonmagical ammunition made of metal or wood that hits the whale is destroyed after dealing damage.

Siege Monster. The whale deals double damage to objects and structures.

Actions

Slam. Melee Weapon Attack: +11 to hit, reach 10ft., one target. Hit 29 (4d10 + 7) bludgeoning damage.

Lava Rain (Recharge 6). The whale spews forth a huge shower of molten lava from its blowhole. Each creature within a 40ft. radius of the whale must make a DC 17 Dexterity saving throw, taking 55 (10d10) fire damage on a failed save or half as much on a successful save.

Seasword

Huge Beast, Unaligned

---

Armor Class

16 (natrual armor)

Hit Points

195 (17d12 + 85)

Speed

swim 80ft.

---

STR	DEX	CON	INT	WIS	CHA
22 (+6)	18 (+4)	20 (+5)	2 (-4)	12 (+1)	6 (-2)

---

Skills

Perception+5

Senses

darkvision 60 ft., passive Perception 11

Languages

None

Challenge

10 (5,900 XP)

Proficiency Bonus

+4

---

Charge. If the seasword moves at least 20 feet straight toward a target and then hits it with a thrust attack on the same turn, the target takes an extra 14 (4d6) piercing damage.

Keen Sight. The seasword has advantage on Wisdom (Perception) checks that rely on sight.

Swift Swim. The seasword does not provoke attacks of opportunity while swimming.

Water Breathing. The seasword can breathe underwater.

Actions

Multiattack. The seasword makes two attacks, one with its thrust and one with its tail.

Thrust. Melee Weapon Attack. +10 to hit, reach 10ft., one target. Hit. 19 (3d8 + 6) piercing damage, and targets must make a DC 16 Constitution Saving throw or begin bleeding. A bleeding target takes 5 (1d10) necrotic damage at the start of its turn until either a DC 15 Wisdom (Medicine) check is made or the target receives healing from a spell.

Tail. Melee Weapon Attack: +10 to hit, reach 15ft., one target. Hit 17 (2d10 + 6) bludgeoning damage.

Water Jet (Recharge 5-6). The seasword expels a powerful jet of water in a 60-foot line that is 10 feet wide. Each creature in that line must make a DC 16 Dexterity saving throw, taking 35 (10d6) bludgeoning damage on a failed save, or half as much damage on a successful one. The force of the water jet pushes Medium or smaller creatures up to 10 feet away from the seasword.

Slag-Skin Beast

Huge Beast, Unaligned

---

Armor Class

19 (natural armor)

Hit Points

180 (16d12 + 80)

Speed

25ft., burrow 15ft.

---

STR	DEX	CON	INT	WIS	CHA
20 (+5)	10 (0)	20 (+5)	2 (-4)	10 (0)	6 (-2)

---

Saving Throws

Str+9, Con+9

Damage Resistances

bludgeoning, piercing, and slashing damage from nonmagical attacks

Damage Immunities

fire

Senses

darkvision 60 ft., passive Perception 10

Languages

None

Challenge

9 (5,000 XP)

Proficiency Bonus

+4

---

Heated Body. A creature that touches the Slag-Skin Beast or hits it with a melee attack while within 5 feet of it takes 9 (2d8) fire damage.

Sure-Footed. The Slag-Skin Beast has advantage on saving throws and ability checks against being knocked prone.

Actions

Multiattack. The Slag-Skin Beats makes two attacks; one with its bite and one with its belch.

Bite. Melee Weapon Attack: +9 to hit, reach 10ft., one target. Hit 18 (2d12 + 5) piercing damage plus 9 (2d8) fire damage.

Belch. Ranged Weapon Attack: +9 to hit, range 30ft./90ft., one target. Hit 19 (3d12) fire damage. On a hit, the target must succeed a DC 15 Dexterity Saving throw or catch fire, taking 9 (2d8) fire damage at the start of each of its turns until the fire is extinguished. The targeted creature or another creature within 5ft. can use an action to extinguish the fire.

Slaughterfish School

Gargantuan Swarm of Tiny Beasts, Unaligned

---

Armor Class

14

Hit Points

110 (20d10)

Speed

swim 60ft.

---

STR	DEX	CON	INT	WIS	CHA
6 (-2)	18 (+4)	10 (0)	1 (-5)	12 (+1)	2 (-4)

---

Skills

Perception+3

Senses

darkvision 60 ft., passive Perception 13

Languages

None

Challenge

7 (2,900 XP)

Proficiency Bonus

+3

---

Aggressive. As a bonus action, the swarm can move up to its swimming speed toward a hostile creature it can see.

Blood Frenzy. The swarm has advantage on melee attack rolls against any creature that doesn’t have all its hit points.

Swarm. The swarm can occupy another creature’s space and vice versa, and the swarm can move through any opening large enough for a Tiny slaughterfish. The swarm can’t regain hit points or gain temporary hit points.

Water Breathing. The swarm can breathe only underwater.

Actions

Multiattack. The swarm makes three bite attack.

Bite. Melee Weapon Attack: +5 to hit, reach 5ft., one target. Hit 6 (1d6 + 3) piercing damage and the target must make a DC 11 Constitution Saving throw or begin bleeding heavily. A bleeding creature takes 2 (1d4) necrotic damage at the start of its turn until it is either healed by a spell or a DC 11 Wisdom (Medicine) check is made as an action.

Blood Drain. Each creature in the swarm’s space must succeed on a DC 14 Constitution saving throw or take 10 (3d6) necrotic damage at the start of each of its turns. If the swarm reduces a creature to 0 hit points with this attack, it can use its reaction to regain 10 (3d6) hit points.

Snaptrap

Huge Beast, Unaligned

---

Armor Class

15 (natural armor)

Hit Points

136 (13d12 + 52)

Speed

40ft., swim 40ft.

---

STR	DEX	CON	INT	WIS	CHA
20 (+5)	14 (+2)	18 (+4)	2 (-4)	12 (+1)	7 (-2)

---

Skills

Stealth+5

Senses

passive Perception 11

Languages

None

Challenge

7 (2,900 XP)

Proficiency Bonus

+3

---

Hold Breath. The snaptrap can hold its breath for up to 15 minutes.

Water Camouflage. The snaptrap has advantage on Dexterity (Stealth) checks made to hide in water.

Actions

Multiattack. The snaptrap makes three attacks; two with its bite and one with its stilted leg.

Bite. Melee Weapon Attack: +8 to hit, reach 10ft., one target. Hit 18 (3d12 + 5) piercing damage

Stilted Leg. Melee Weapon Attack: +8 to hit, reach 15ft., one target. Hit 16 (2d10 + 5) piercing damage. On a hit the target must make a DC 15 Strength Saving throw. On a failure, the target is knocked prone and grappled as the snaptrap pins it to the ground with the its leg. While grappled in this way, the target cannot shift out of the prone condition until a successful DC 15 Strength (Athletics) check is made. While grappled in this way, the snaptrap has advantage on any bite attacks towards the grappled creature (overrule prone conditions ruling). The snaptrap can only have one creature grappled at a time.

Stemosaurus

Tiny Beast, Unaligned

---

Armor Class

12

Hit Points

9 (2d4 + 4)

Speed

10ft., climb 10ft.

---

STR	DEX	CON	INT	WIS	CHA
3 (-4)	14 (+2)	14 (+2)	1 (-5)	10 (0)	5 (-3)

---

Skills

Stelath+4

Senses

passive Perception 10

Languages

None

Challenge

0 (0 or 10 XP)

Proficiency Bonus

+2

---

Camouflage. The stemosaurus has advanatge on Dexterity (Stealth) checks made to mimic a leaf.

Glider. The stemosaurs falls to the ground as if it was under the effects of Feather Fall

Actions

Bite. Melee Weapon Attack: +4 to hit, reach 5ft., one target. Hit 1 piercing damage.

Stonetooth Whale

Gargantuan Beast, Unaligned

---

Armor Class

16 (natural armor)

Hit Points

310 (20d20 + 100)

Speed

swim 60ft.

---

STR	DEX	CON	INT	WIS	CHA
24 (+7)	10 (0)	20 (+5)	2 (-4)	12 (+1)	6 (-2)

---

Saving Throws

Con+10, Wis+6

Skills

Perception+6

Damage Resistances

cold; bludgeoning, piercing, and slashing from nonmagical attacks

Senses

blindsense 120ft., passive Perception 16

Languages

None

Challenge

14 (11,500 XP)

Proficiency Bonus

+5

---

Charge. If the Stonetooth Whale moves at least 20 feet straight toward a target and then hits it with a gore attack on the same turn, the target takes an extra 18 (4d8) piercing damage. If the target is a creature, it must succeed on a DC 18 Strength saving throw or be pushed up to 10 feet away.

Echolocation. The whale cannot use its blindsense if becomes deafened

Hold Breath. The whale can hold its breath for 1 hour.

Siege Monster. The whale deals double damage to objects/structures.

Actions

Multiattack. The whale makes two attacks with its horns.

Horn. Melee Weapon Attack. +10 to hit, reach 15ft., one target. Hit. 27 (3d10 + 7) piercing damage.

Tail Swipe. Melee Weapon Attack. +10 to hit, reach 15ft., one target. Hit. 33 (4d12 + 7) bludgeoning damage and the target must make a DC 18 Strength saving throw or be pushed back 15ft away from the whale.

Stormtide Manta Ray

Large Beast, Unaligned

---

Armor Class

12

Hit Points

58 (8d10 + 16)

Speed

swim 40ft.

---

STR	DEX	CON	INT	WIS	CHA
15 (+2)	14 (+2)	14 (+2)	1 (-5)	10 (0)	4 (-3)

---

Damage Immunities

lightning

Condition Immunities

paralyzed

Senses

passive Perception 10

Languages

None

Challenge

3 (700 XP)

Proficiency Bonus

+2

---

Bioluminesence. The manta ray can use a bonus action to emit a bright light in a 10ft. radius around itself with an additional 10ft. of dim light beyond that.

Charged Skin. When a creature hits the manta ray with a melee weapon attack, it must succeed a DC 12 Constituion saving throw or take 4 (1d8) lightning damage.

Discharge. When the manta ray is subjugated to lightning damage, it instead takes no damage and forces all creatures within 10ft. to make a DC 12 Constitution saving throw, taking lightning damage equal to the damage the manta ray would have taken, or half as much on a successful save.

Water Breathing. The manta ray can only breathe underwater.

Actions

Sting. Melee Weapon Attack: +4 to hit, reach 10ft., one target. Hit 6 (1d6 + 2) piercing damage plus 5 (2d4) poison damage.

Talonchela

Large Beast, Unaligned

---

Armor Class

16 (natural armor)

Hit Points

136 (16d10 + 48)

Speed

40ft., burrow 20ft.

---

STR	DEX	CON	INT	WIS	CHA
18 (+4)	12 (+1)	16 (+3)	2 (-4)	10 (0)	6 (-2)

---

Skills

Perception+3, Stealth+7

Senses

darkvision 30ft., tremorsense 60ft., passive Perception 13

Languages

None

Challenge

6 (2,300 XP)

Proficiency Bonus

+3

---

Ambusher. The Talonchela has advantage on attack rolls against any creature it has surprised.

False Appearance. While the Talonchela remains motionless and burrowed just below the surface of the sand, it is indistinguishable from the sand.

Strong Grasp. The Talonchela has advantage on Strength (Athletics) checks to maintain a grapple.

Actions

Multiattack. The Talonchela makes three attacks: one with its tail and two with its claws.

Claw. Melee Weapon Attack. +7 to hit, reach 5ft., one target. Hit: 17 (2d10 + 4) slashing damage.

Prehensile Tail. Melee Weapon Attack. +7 to hit, reach 15ft., one creature. Hit. 20 (3d8 + 5) bludgeoning damage. The target must succeed on a DC 15 Strength saving throw or be grappled (escape DC 15). Until this grapple ends, the target is restrained, and the Talonchela can’t use its tail on another target.

Tail Slam. The Talonchela slams a creature grappled by its tail into the ground, dealing 25 (4d8 + 5) bludgeoning damage.

Trail Snail

Large Beast, Unaligned

---

Armor Class

18 (natural armor)

Hit Points

42 (5d10 + 12)

Speed

25ft.

---

STR	DEX	CON	INT	WIS	CHA
10 (+4)	17 (+3)	16 (+3)	1 (-5)	10 (0)	5 (-3)

---

Damage Immunities

acid, poison

Condition Immunities

poisoned

Senses

darkvision 120ft., tremorsense 60ft., passive Perception 10

Languages

None

Challenge

3 (700 XP)

Proficiency Bonus

+2

---

Caustic Body. The trail snail is coated in a caustic slime. A creature that touches the snail or hits it with a melee attack while within 5ft. takes 7 (2d6) acid damage.

Sunlight Withering. The snail takes 10 radiant damage when it starts its turn in sunlight. While in sunlight, it has disadvantage on attack rolls and ability checks. If the snail is reduced to hit points by this damage, it does not die but enters a state of stasis, becoming incapacitated and completely dehydrated. If the snail is placed in acid or water, it regains 1 hit point.

Trail of Acid. Any space the snail moves through is affected by its caustic secretion. Stone dissolves, wood burns away, and flesh melts. The snail leaves a trail as it moves, the trail occupying any space the snail has moved through. A creature moving into a space the snail has moved through harboring this secretion or stats its turn in such a space must make a DC 13 Dexterity saving throw, taking 7 (2d6) acid damage on a failed save or half as much on a successful one. Each 5ft. secretion of trail can be neutralized by any effect or item that neutralizes acid and a creature can use its action to brush acid off itself or another creature. Otherwise, the acid eats through 1 inch of material every 6 seconds. A creature can attempt to leap over a 5ft. section of the snail’s acrid trail with a successful DC 13 Strength (Athletics) check, falling onto the trail on a failure.

Actions

Slam. Melee Weapon Attack. +5 to hit, reach 5f.t, one target. Hit. 10 (2d6+3) bludgeoning damage plus 7 (2d6) acid damage.

Viruelent Acid. The snail corrodes a nonmagical object it can see within 5ft. of itself, unless the object is immune to acid damage. If the object isn’t being worn or carried, the touch destroys a 1ft. cube of it. If the object is being worn or carried by a creature, the creature must make a DC 13 Dexterity saving throw to avoid the snail’s touch.

Bonus Action

Shell Defense. The snail withdraws into or emerges from its shell, gaining a +4 bonus to AC until it emerges.

Trenchrock Crab

Huge Beast, Unaligned

---

Armor Class

17 (natural armor)

Hit Points

95 (10d12 + 30)

Speed

30ft., burrow 20ft., swim 20ft.

---

STR	DEX	CON	INT	WIS	CHA
20 (+5)	9 (-1)	16 (+3)	3 (-4)	11 (0)	3 (-4)

---

Skills

Stealth+5

Senses

blindsight 30ft., passive Perception 10

Languages

None

Challenge

7 (2,900 XP)

Proficiency Bonus

+3

---

Amphibious. The crab can breathe both air and water

Carapace Camouflage. While the crab remains motionless and partially buried in sand or earth, it resembles a natural rock formation or outcropping. A creature within 30ft. can discern its true nature with a successful DC 15 Intelligence (Invesitagtion/Nature) check.

Actions

Cutlass Claw. Melee Weapon Attack: +8 to hit, reach 10ft., one target. Hit 27 (4d10 + 5) slashing damage and the target begins bleeding. A bleeding target takes 3 (1d6) necrotic damage at the start of its turns until it either receives magical healing or another creature uses an action to make a DC 15 Wisdom (Medicine) check to stabilize the wound.

Titan Claw. Melee Weapon Attack: +8 to hit, reach 10ft., one target. Hit 19 (3d8 + 5) bludgeoning damage and the target is grappled (escape DC 15). The crab can only have 1 creature grappled in this way at a time.

Shell Quake (Recharge 5-6). The crab lifts and slams its shell on the ground, causing the earth to rumble and split. The ground within 10ft. of the crab becomes difficult terrain for all creatures except the crab until the end of its next turn. Additionally each creature within 10ft. of the crab must make a DC 15 Dexterity saving throw or be knocked prone. When a creature falls prone in this way, the crab can immediately make one cutlass claw against them. Creatures have disadvantage on this saving throw if they are unaware of the crabs turns nature before it uses Shell Quake.

Tyrant Scorpion

Large Beast, Unaligned

---

Armor Class

17 (natural armor)

Hit Points

123 (13d10 + 52)

Speed

40ft., climb 30ft.

---

STR	DEX	CON	INT	WIS	CHA
18 (+4)	16 (+3)	18 (+4)	2 (-4)	14 (+2)	4 (-3)

---

Skills

Stelath+7

Damage Resistances

poison

Senses

darkvision 60 ft., passive Perception 19

Languages

None

Challenge

9 (5,000 XP)

Proficiency Bonus

+4

---

Relentless Endurance. If the scorpion takes damage that would reduce it to 0 hit points, it instead drops to 1 hit point. Once it has used this feature, it can’t use it again until it finishes a short or long rest.

Scuttling Leap. The scorpion can make a running jump of up to 20 feet without moving.

Spider Climb. The scorpion can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Actions

Multiattack. The scorpion can make two attacks: one with its stinger and one with its claws.

Claws. Melee Weapon Attack: +8 to hit, reach 10ft., one target. Hit 13 (2d8 + 4) slashing damage. On a hit, if the target is A medium or smaller size, the target is grappled (Escape DC 16). The scorpion can only have one creature grappled at a time.

Stinger. Melee Weapon Attack: +8 to hit, reach 10ft., one target. Hit 14 (3d6 + 4) piercing damage and the target must make a DC 16 Constitution saving throw, taking 17 (5d6) poison damage on a failed save.

Fling. The scorpion hurls a creature or object it has garppled in its claws up to 20ft. away. The target of the attack must make a DC 16 Dexterity Saving throw, taking 33 (6d10) bludgeoning damage on a failed save and being knocked prone. IF the thrown object was a creature the damage is halved amongst the 2 targets.

Tyrantdactyl

Huge Beast, Unaligned

---

Armor Class

15 (natural armor)

Hit Points

84 (8d12 + 32)

Speed

10ft., fly 80ft.

---

STR	DEX	CON	INT	WIS	CHA
20 (+5)	13 (+1)	18 (+4)	2 (-4)	15 (+2)	5 (-3)

---

Skills

Acrobatics+4, Peception+5

Senses

passive Perception 15

Languages

None

Challenge

7 (2,900 XP)

Proficiency Bonus

+3

---

Dive. If the tyrantdactyl flies at least 40ft. towards a target in a straight line and then hits them with a bite attack, the attack deals an extra 14 (4d6) piercing damage.

Flyby. The tyrantdactyl does not provoke attacks of opportunity when it flies out of an enemies reach.

Siege Monster. The tyrantdactyl deals double damage to buildings and structures.

Actions

Bite. Melee Weapon Attack: +8 to hit, reach 10ft., one target. Hit 26 (6d6 + 5) piercing damage. If the target is a creature that is Large or smaler, that creature must succeed on a DC 16 Strength saving throw or become grappled and restrained. For the duration of the grapple, the tyrantdactyl cannot make another bite attack against another creature.

Wing. Melee Weapon Attack: +8 to hit, reach 10ft., all targets within range. Hit 25 (3d12 + 5) bludgeoning damage. Creatures hit by the attack must succeed a DC 16 Strength saving throw or be pushed back 10ft. and fall prone.

Venomtail Salamander

Small Beast, Unaligned

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Armor Class

14 (natural armor)

Hit Points

27 (6d6 + 6)

Speed

30ft., swim 30ft.

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STR	DEX	CON	INT	WIS	CHA
10 (0)	16 (+3)	12 (+1)	2 (-4)	12 (+1)	6 (-2)

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Skills

Stealth+5

Damage Resistances

poison

Senses

darkvision 60 ft., passive Perception 11

Languages

None

Challenge

1/2 (100 XP)

Proficiency Bonus

+2

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Amphibious. The salamander can breathe air and water.

Camouflage. The salamander has advantage on Dexterity (Stealth) checks made to hide in marshy or swampy terrain.

Actions

Bite. Melee Weapon Attack: +5 to hit, reach 5ft., one target. Hit 5 (1d4 + 3) piercing damage.

Stinger. Melee Weapon Attack: +5 to hit, reach 5ft., one target. Hit 6 (1d6 + 3) piercing damage and the target must succeed on a DC 12 Constitution saving throw, taking 7 (2d6) poison damage on a failed save.

Venopede

Small Beast, Unalgined

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Armor Class

11 (natural armor)

Hit Points

9 (2d6 + 2)

Speed

25ft., climb 25ft.

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STR	DEX	CON	INT	WIS	CHA
8 (-1)	16 (+3)	12 (+1)	2 (-4)	12 (+1)	6 (-2)

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Skills

Stealth+5

Damage Resistances

poison

Senses

blindsight 20 ft., passive Perception 11

Languages

None

Challenge

1/2 (50 XP)

Proficiency Bonus

+2

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Spider Climb. The venopede can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Stinging Grasp. If the venopede is grappling a creature with its bite attack, it can use a bonus action to inflict additional damage. The grappled creature takes 3 (1d6) poison damage at the start of its turn while it remains grappled by the venopede.

Actions

Bite. Melee Weapon Attack: +5 to hit, reach 5ft., one target. Hit 5 (1d4 + 3) piericng damage and the target is grappled (Escape DC 11).

Whisker Whale

Grgantuan Beast, Unaligned

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Armor Class

14 (natural armor)

Hit Points

130 (9d20 + 36)

Speed

swim 60ft.

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STR	DEX	CON	INT	WIS	CHA
22 (+6)	10 (0)	18 (+4)	2 (-4)	12 (+1)	6 (-2)

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Skills

Perception+3

Senses

blindsight 60 ft., tremorsense 60ft., passive Perception 13

Languages

None

Challenge

4 (1,100 XP)

Proficiency Bonus

+2

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Hold Breath. The whale can hold its breath for 90 minutes.

Keen Hearing. The whale has advantage on Wisdom (Perception) checks that rely on feeling vibrations.

Actions

Multiattack. The whale makes two attacks; one with its whiskers and one with its tail.

Whisker. Melee Weapon Attack: +8 to hit, reach 10ft., one target. Hit 27 (3d12 + 6) bludgeoning damage.

Tail. Melee Weapon Attack: +8 to hit, reach 15ft., one target. Hit 28 (4d10 + 6) bludgeoning damage and the target is pushed back 10ft. away from the whale.

White Reaper Crab

Medium Beast, Unaligned

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Armor Class

16 (natural armor)

Hit Points

60 (8d8 + 24)

Speed

20ft., swim 30ft.

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STR	DEX	CON	INT	WIS	CHA
14 (+2)	16 (+3)	16 (+3)	3 (-4)	12 (+1)	5 (-3)

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Skills

Stealth+5

Damage Resistances

cold

Senses

blindisght 30 ft., passive Perception 11

Languages

None

Challenge

3 (700 XP)

Proficiency Bonus

+2

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Amphibious. The White Reaper Crab can breathe air and water..

Frozen Deception. The White Reaper Crab can fold its claws and tail into its body, appearing like a floating block of ice. While in this state, it has advantage on Dexterity (Stealth) checks to remain hidden.

Actions

Multiattack. The White Reaper Crab makes two claw attacks.

Claw. Melee Weapon Attack: +5 to hit, reach 5ft., one target. Hit 12 (2d8 + 3) slashing damage and the target is grappled (Escape DC 13). the White Reaper Crab can only have one creature grappled at a time.

Tail Slap. Melee Weapon Attack: +5 to hit, reach 5ft., one target. Hit 16 (2d12 + 3) bludgeoning damage.