2 Level 12 monsters Must be Xyz Summoned, and cannot be Special Summoned by other ways. This card gains 100 ATK for every Xyz Monster attached to this card as Xyz Materials. This card is unaffected by Trap effects if you control 2 or more face-up Continuous Spell Cards with different name. If this card would leave the field: You can detach 1 Xyz Material from this card instead. You can only use this effect of "An, Deity of the Beth Nahrain" once per turn.