Arkahn, the Black Sorcerer

Changeling, Flying

Whenever Arkhan enters the battlefield, choose a creature type. Creatures of the chosen type have Embalm X where X is equal to their mana costs.

Whenever a creature of the chosen type becomes the target of a spell or ability you may destroy target permanent an opponent controls. If you pay two life, you may create a token that's a copy of the destroyed creature.