Equip only to a monster you control. During your Main Phase: You can make all monsters your opponent currently controls lose ATK equal to half the equipped monster s ATK, until the end of this turn (even if this card leaves the field). If this card is sent to the GY while equipped to a monster: You can pay 1000 LP; return this card to your hand. You can only use each effect of Archfiend s Staff of Despair once per turn.