You can only activate this card when you have Don Zaloog, Cliff the Trap Remover, Dark Scorpion - Chick the Yellow, Dark Scorpion - Gorg the Strong, and Dark Scorpion - Meanae the Thorn face-up on your side of the field. During the turn this card is activated, any of these 5 cards can attack your opponent''s Life Points directly. In that case, the Battle Damage inflicted by each of those cards (that attack your opponent''s Life Points directly) becomes 400 points.
