3 Level 6 WATER monsters
You can also Xyz Summon this card by using 1 Rank 5 WATER Xyz Monster you control. (Transfer its materials to this card.) Gains 500 ATK for each material attached to it. If this card on the field would be destroyed by battle or card effect, you can detach 1 material from this card instead. Once per turn: You can detach 1 material from this card; negate the effects of all face-up monsters your opponent currently controls, until the end of this turn.