Zero Force

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TCG Rulings

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You cannot activate this card during the Damage Step.: Storm of Ragnarok – Card Rulings (version 1.0)

You cannot activate this card if there are no face-up monsters on the field.

You cannot activate this card if a face-up monster is removed from play as a cost.

You cannot activate this card when a Token or a Trap Card treated as a monster is removed from play.

You can activate this card if your monster is destroyed by "Acid Trap Hole" while "Macro Cosmos

Judge Program Forum Rulings

{{RulingFlagged">TCGJudgeProgram =
When the effect of "D.D. Warrior Lady" resolves in the Damage Step, you cannot activate "Zero Force".: Zero Force

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OCG Rulings

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It cannot be activated during the Damage Step.: Zero Force

When a monster is banished, if there are no face-up monsters on the field, this card cannot be activated.

If a monster is banished for a cost, this card cannot be activated.