Dark Scorpion Combination

You can only activate this card when there are "Don Zaloog", "Dark Scorpion - 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 this turn, any of these 5 cards can attack your opponent's Life Points directly. In that case, the Battle Damage inflicted to your opponent by each of those cards becomes 400 points.