Koh, the Face Stealer (#322)

Type: Legendary Creature — Shapeshifter Spirit

Text: When Koh enters, exile up to one other target creature.
Whenever another nontoken creature dies, you may exile it.
Pay 1 life: Choose a creature card exiled with Koh.
Koh has all activated and triggered abilities of the last chosen card.

Set: Avatar: The Last Airbender (#322)