4 Level 5 monsters When an opponent s monster declares an attack: You can destroy all cards your opponent controls. If this card has Number 69: Heraldry Crest as an Xyz Material, it gains this effect. * Once per turn: You can detach 1 Xyz Material from this card, then target 1 face-up Xyz Monster your opponent controls; this card gains ATK equal to that face-up monster s original ATK, and if it gains ATK this way, this card s name becomes that monster s, and it gains that monster s original effect. These effects last until the End Phase.