Card Rulings:Number 94: Crystalzero

OCG Rulings

 * This effect is a Quick Effect that targets 1 face-up monster on the field. You can also target 1 face-up monster your opponent controls or "Number 94: Crystal Zero" itself.


 * Detaching 1 Xyz Material is cost to activate this effect.


 * You can activate this effect during the Damage Step, but not during the damage calculation.