Card Rulings:Number 57: Tri-Head Dust Dragon

OCG Rulings

 * The effect that increases this card's ATK targets 1 face-up monster the opponent controls.


 * Detaching 1 Xyz Material from this card is a cost to activate the effect that chooses an unused Monster Card Zone or Spell and Trap Card Zone. Also, this effect targets 1 unused Card Zone.


 * The effect that prevents the targeted Card Zone from being used as long as this card remains face-up is a Continuous Effect that starts applying if this card's Ignition Effect is applied. The Card Zone cannot be used as long as it is targeted.


 * The ATK of this card remains increased by its own effect as long as it remains face-up.