Full Armored Black Ray Lancer

3 Level 4 WATER monsters You can also Xyz Summon this card by using a Rank 3 WATER Xyz Monster you control that has no material. Gains 200 ATK for each material attached to it. If this card on the field would be destroyed by battle or card effect, you can detach all materials from this card instead. When this card destroys an opponent's monster by battle: You can target 1 Spell/Trap your opponent controls; destroy that target.