The Lycanthrope

Your patron is a great and terrible bearer of the lycanthrope curse, a beast capable of shrugging off fatal blows, but unable to control itself at the sight of the moon. The motives for this patron are often simple and direct: Kill an ancient enemy, save this plot of forest, or plunder an ancient tomb for secrets of the curse.

Beastial Form

Starting at the first level, you gain the powers of a new form. As a bonus action, you can take on a wendigo form. All your equipment stays on you, and your clothes and armor warp to fit your new form. As an action, you can turn back into your ordinary form. You gain the following bonuses:
-As a bonus action, you can move up to half your speed towards a hostile creature that you can see.
-You gain a climb speed equal to your walking speed.
-Your claws are natural weapons, which you can use to make unarmed strikes. If you hit with them, you deal slashing damage equal to 1d6+ your strength modifier, instead of the bludgeoning damage normal for an unarmed strike.
-You have proficiency on intimidation checks, but disadvantage on persuasion checks, if your DM determines your form is relevant in the situation.
-As an action, you can make a roar. Choose a creature that you can see within range. The creature must succeed on a Wisdom saving throw or be frightened for a minute. At the end of each of its turns, the creature can make another Wisdom saving throw. On a success, the effect ends on the target. Once you use this feature, you must finish a short or long rest before you can use it again.

Wendigo's Regeneration

Starting at 6th level, when you cast a spell with pact magic, you regain hit points equal to your warlock level plus your Constitution modifier. You cannot use this feature if you took damage from a silvered weapon since the end of your last turn. You can use this feature a number of times equal to your charisma modifier, and you regain all uses when you finish a long rest

Wendigo's Curse

At 10th level, your curse overpowers other ailments. You are immune to disease, and have resistance to poison damage. As a reaction when you take damage, you can gain resistance to all damage except psychic until the start of your next turn, including the damage from that attack. Silvered weapons ignore this damage resistance. Once you use this feature, you must finish a short or long rest before you can use it again.

Spread The Curse

Starting at 14th level, you can spread your curse, causing a creature to forcefully transform. As an action, you can touch a creature and spread your curse. The creature must make a Constitution saving throw. On a failed save, the creature takes 8d8 necrotic damage, becomes incapacitated until the end of their next turn, and is cursed with wendigo lycanthropy. The creature takes half as much damage on a successful save. If a creature is slain by this ability, their corpse is a wendigo instead of what form the target originally was. Once you use this ability, you can’t use it again until you finish a long rest.