Massacre Wurm | Magic: The Gathering
Formats Massacre Wurm is Legal in
Official Oracle Text for Massacre Wurm
Whenever a creature an opponent controls dies, that player loses 2 life.
Official Rulings for Massacre Wurm
6/1/2011 : If a creature an opponent controls is put into the graveyard from the battlefield at the same time as Massacre Wurm, its last ability will trigger.