D/D/D Supersight King Zero Maxwell

[ Pendulum Effect ]r
You can target 1 face-up monster on the field; change its DEF to 0 until the end of this turn (even if this card leaves the field). You can only use this effect of “D/D/D Supersight King Zero Maxwell” once per turn.r
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[ Monster Effect ]r
Before damage calculation, if this card attacked an opponent’s Defense Position monster: You can change the DEF of the opponent’s monster to 0 until the end of the Damage Step. If this card attacks a Defense Position monster, inflict piercing battle damage to your opponent. You take no battle damage from attacks involving this card.