If you control another Ghostrick' monster, your opponent cannot target this card for an attack. Once per turn: You can detach 1 Xyz Material from this card, then target 1 face-up monster on the field with ATK less than or equal to the combined ATK of all 'Ghostrick' monsters on the field; destroy it, and if you do, as long as you control a 'Ghostrick' monster, the destroyed monster's Monster Card Zone cannot be used.'
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