The Frost Samurai

There is nothing that embodies the spirit of the warrior more than the cold intensity of ice. It is patient, biting, and controls all that it encompasses. There is no warrior that embodies the cold better than the Frost Samurai, a master of precise strikes and winter's fury.

Bond Of Cold

At 3rd level, you learn a ritual that creates a magical bond between yourself and one weapon. You perform the ritual over the course of 1 hour, which can be done during a short rest. The weapon must be within your reach throughout the ritual, at the conclusion of which you touch the weapon and forge the bond.

Once you have bonded a weapon to yourself, so long as you’re not incapacitated that weapon becomes a reflection of you. As a bonus action you may choose to imbue your weapon with cold damage, you can end this effect as a bonus action. If your bonded weapon is a Long Sword you may treat it as a finesse weapon.

Beginning at 5th level you may ignore cold damage resistance and your bonded weapon becomes a magic weapon. Once per turn when you hit an enemy with an attack that deals cold damage you can choose to deal an extra 1d6 cold damage.

Saves against Frost Samurai abilities are DC 8 + Proficiency Bonus + Dexterity Modifier

Frost Within

Beginning at 7th level the cold has culminated within your body so thoroughly that it has become a part of you. Your skin turns a pale blue color, you gain resistance to cold damage, can move through difficult terrain related to ice as if it weren’t difficult terrain, and do not feel the effects of non-magical cold temperature.

By using a bonus action you may lower the temperature of your weapon even further until the end of your turn, enemies struck by your weapon while using cold damage and under this effect must make a Constitution save or suffer disadvantage on their next attack roll until the beginning of your next turn.

Blizzard Iaijutsu

Beginning at 10th level you have gained the ability to release a swift bite of winter from your blade. If The Frost Samurai moves at least 20 feet in a straight line toward a creature and hits with a melee weapon attack that target will take normal weapon damage + 4d8 cold damage on the first strike. If a creature is struck in this manner all terrain in a 30ft radius around that creature becomes iced over making it difficult terrain for 10 minutes. This effect will also extinguish all fire in the area and flash freeze all water. You may use this ability a number of times equal to 1 + Dexterity modifier (A minimum of once) per short or long rest.

FrostBite

Beginning at 15th level if either your Chilling Battojutsu or Blizzard Iaijutsu kills a creature all creatures, excluding The Frost Samura, in a 30ft radius centered on the creature just killed must make a Dexterity save or take 6d8 cold damage on a failed save and half as much on a successful one.

Chilling Battojutsu

Beginning at 18th level, you gain the ability to unleash winter incarnate from your blade through focus. When you’re attacked by a creature you're aware of that is within 5 feet of you, so long as your weapon is sheathed, you can use your reaction to make a single attack against that target before they make their attack roll, if successful you may trigger Frost Within on the attack that was about to be made against you.