The Wolverine

Through magical sources or a random mutation you develop a healing factor, granting you the ability "Healing Factor" that heals you for 1d10 + your character level, once per short rest.

You also grow retractable claws that can be used as natural weapons when using unarmed strike in melee combat. They deal slashing damage equal to 1d6 + your strength modifier and the attacks are treated as magical for the purpose of getting past resistances.