Body Part Substitution (self) – Ability to replace one’s limbs or other body parts with those of another.
Etrigan the Demon (DC) demonstrates this power in Blood of the Demon #14.
Terror has this power and assimilates not just body parts but the memories and skills of the person who had the body part (Terror V2 #1).
Skin Devil – Creature Collection I
Cerberus (DC) – Who’s Who in the DC Universe Update 1993 #1
Krillitane – Tenth Doctor – Gamemaster’s Guide
Satanna (DC) – Power Girl V2 #11