Enchanted creature can't attack or block and its activated abilities can't be activated. That creature's controller may sacrifice a permanent to ignore this effect until end of turn.
{1}{U}: Return Volrath's Curse to its owner's hand.1
Illus. Daren Bader
10/4/2004: If the creature this card is on is sacrificed to this card, this card is put into the graveyard before the ability to unsummon it can be used.