Wendigo Soul

An infamous monster that creeps the frigid nights, the Wendigo is a cannibalistic person turned monster. It stalks its harrowed prey, feeding off the victim’s hunger and weakness. A wendigo can be born in the Badlands through an act of aggression and cannibalism, which is most likely to occur during the Winter. When a family is plunged into starvation, and the parents turn to wendigos, the children very rarely survive the bloody ordeal. The few that do are forever changed, both body and soul.
Whenever another creature within 10 feet of you rolls a 1 on a D20 Test, you are healed for a number of Hit Points equal to your Proficiency Bonus. You can benefit from this trait only once per turn.