Banewasp Affliction

Oracle Text

Enchant creature

When enchanted creature dies, that creature's controller loses life equal to its toughness.

Card Rulings

10/1/2008 The player who loses life is the player who controlled the creature when it was put into a graveyard. This may not be the player whose graveyard it was put into. That player loses life equal to the creature’s toughness as it last existed on the battlefield.