Ice Beast Zerofyne
XYZ Monster
WATER Winged Beast
★4 ATK 2000 DEF 2200
2 Level 4 Winged Beast-Type monsters
Once per turn: You can detach 1 Xyz Material from this card; negate the effects of all face-up cards your opponent currently controls, and if you do, this card gains 300 ATK for each face-up card currently on the field, except this card (these effects are applied until your next Standby Phase).