Card Rulings:Number 36: Chronomaly Chateau Huyuk

OCG Rulings

 * The "that monster's ATK becomes 0 until the end of this turn." effect is a Quick Effect. (This effect targets 1 face-up monster your opponent controls. Detaching 1 Xyz Material is a cost to activate this effect.)


 * The "that monster's ATK becomes 0 until the end of this turn." effect can be activated during Damage Step, but not during damage calculation.


 * The "target 1 monster your opponent controls whose current ATK is different from its original ATK; destroy that target." effect is an Ignition Effect. (This effect targets 1 face-up monster your opponent controls whose current ATK is different from its original ATK. Tributing 1 "Chronomaly" monster you control is a cost to activate this effect.)


 * The "target 1 monster your opponent controls whose current ATK is different from its original ATK; destroy that target." effect can also be activated by Tributing this card.