Undead Alchemist | Magic: The Gathering
Formats Undead Alchemist is Legal in
Official Oracle Text for Undead Alchemist
Whenever a creature card is put into an opponent's graveyard from his or her library, exile that card and put a 2/2 black Zombie creature token onto the battlefield.
Official Rulings for Undead Alchemist
9/22/2011 : Whenever a creature card is put into an opponent's graveyard from his or her library, the triggered ability of each Undead Alchemist you control will trigger. The first such ability to resolve will exile that creature card and create a Zombie token. Subsequent abilities won't exile the creature card, but each will create another Zombie token.