Card Rulings:Number C69: Heraldry Crest of Horror

OCG Rulings

 * The "When an opponent's monster declares an attack: You can destroy all cards your opponent controls." effect is a Trigger Effect. (This effect does not target.)


 * The "this card gains ATK equal to that monster's original ATK, also this card's name and original effect become the same as that monster. These changes last until the End Phase." effect is an Ignition Effect. (This effect targets 1 face-up Xyz Monster your opponent controls.)


 * Detaching 1 Xyz Material from this card is a cost to activate the "this card gains ATK equal to that monster's original ATK, also this card's name and original effect become the same as that monster. These changes last until the End Phase." effect.