Once per damage calculation, if this card attacks or is attacked: You can detach 1 Xyz Material from this card; during damage calculation only, this card gains 200 ATK times the combined Rank of all monsters on the field. If this card is destroyed by your opponent’s card effect while “Galaxy-Eyes Photon Dragon” is attached to it as an Xyz Material: You can Special Summon this card during your 2nd Standby Phase after it was destroyed, also double its ATK. If “Galaxy-Eyes Photon Dragon” is not attached to this card as an Xyz Material, halve all battle damage this card inflicts to your opponent.