Card Rulings:Number 102: Star Seraph Sentry

OCG Rulings

 * Detaching 1 Xyz Material is a cost to activate the effect that halves the ATK and negates effects.


 * The effect that halves the ATK and negates effects targets 1 face-up monster your opponent's control.


 * Detaching all Xyz Materials for the "If this card on the field would be destroyed, you can detach all Xyz Materials from it instead" effect is not a cost.


 * The "If this card on the field would be destroyed, you can detach all Xyz Materials from it instead" effect can be applied during the Damage Step.