Path of the Wendigo

Tortured by the harsh cold winter woods, you are left starving and waned. You crave anything to sustain your starvation. When civilization meets you again, you do not hesitate to devour their being and with it came grave consequence and grave spirits of evil and despite.

Within days, others saw you different, others saw you as a creature more than man, others saw you partnered with a fiend of the arctic mountains. Most did not have say in their path, forced from starvation and manipulation of the Wendigo, causing the two to souls to be forged together. This grants them the abilities of the Wendigo.

Raging Spirit

At 3rd level, when you rage, the Wendigo takes control, causing physical changes on your body. Your arms extend, adding 5ft to your melee attacks, your fingers extend into boney claws, your unarmed attacks now deal 1d6 + Strength modifier slashing damage, and you grow pointed antlers that deal 1d6 + STR modifer piercing damage. As a bonus action, you can make an attack with your antlers that are within 5ft of you.

The damage dealt by your horns increases to 1d8 at 8th level and 1d10 at 14th level.

Wendigo's Hunger

When you kill a creature while raging, you can make a bonus action and you regain 1d4 hit points. You also add 1d4 to your claw and antler attacks.

You can no longer eat ordinary foods and must be of a similar creature to yourself.

Heart of Ice

At 6th level, you gain resistance to cold damage and vulnerability to fire damage. When raging, you deal an extra 1d6 cold damage per strike while raging and when you get attacked by fire damage an extra 1d6 fire damage is dealt to you.

This increases to 1d10 at 20th level. 

Uncanny Appearance

At 10th level, you can use your action to make frighten someone with your uncanny apparel. When you do so, choose one creature that you can see within 30ft of you. If the creature can see or hear you, it must make a Wisdom saving throw (DC 8 + your proficency bonus + your Charisma modifier) or be frightened of you until the end of your turn. On subsequent turns, you can use an action to extend the duration of this effect on the frightened creature ends line of sight with you or it is 60ft away from you. 

When raging, any creature 15ft away from you is effected by this.

Wendigo's Bane

At 14th level, when you hit a creature while raging they must make a Constitution saving throw (10 + your attack modifier), taking 1d4 cold damage every turn on a failed save with no negative effects on a successive save.