Bone Worg

Bite. Melee Attack Roll: +5, reach 5 ft. Hit: 7 (1d8 + 3) Piercing damage, and the next attack roll made against the target before the start of the worg’s next turn has Advantage.

Absorb Skeleton. DC 14 Constitution Save. As a full-round action that provokes an attack of opportunity, a Bone Worg can draw the bones out of a helpless or dead creature and add them to its mass. This creature must have a skeletal system.

Success: No Effect

Failure: The Creature's bones are absorbed. A Bone Worg heals 1d4 damage per Hit Die of the creature whose bones it absorbs. A creature killed or otherwise affected by this ability cannot be returned to life by a raise dead or any other effect that requires an intact body.