Mermail Abyssgaios

[ Aqua / Xyz / Effect ] 2 Level 7 WATER monsters While this card has material, Level 5 or higher monsters cannot attack. Once per turn (Quick Effect): You can detach 1 material from this card; negate the effects of all face-up monsters your opponent currently controls with less ATK than this card, until the end of this turn. ATK/ 2800 DEF/ 1600