Tornado Wall

 Initially, this card's effect gave the player immunity to all damage, Battle and Effect. The effect was rewritten to only reduce Battle Damage from attacking monsters to 0.

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This card is based on a waterpsout.

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The waterspouts in this card's artwork also appear in the artwork of Sea Stealth II.

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TCG Rulings

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Kuribon: If you cannot take Battle Damage because of the effect of “Waboku” or “Tornado Wall” you cannot activate the effect of “Kuribon.”

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OCG Rulings

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Battle Damage inflicted to the player becomes 0, but Battle Damage inflicted to monsters does not become 0.: Trap Card > Tornado Wall

The effect does not target

Previously Official Rulings

"Tornado Wall" may be Set on the field if "Umi" is not on the field, but it cannot be activated. If targeted by "Bait Doll" when face-down and "Umi" is not on the field, it is destroyed.

"Tornado Wall" may be activated when "Maiden of the Aqua" or "A Legendary Ocean" is face-up on the field.

A Legendary Ocean: When "A Legendary Ocean" is active, you may activate "Tornado Wall".

Maiden of the Aqua: While "Maiden of the Aqua" is making the field "Umi", you can activate "Tornado Wall" but if "Maiden of the Aqua" is destroyed, "Tornado Wall" is also destroyed.

Maiden of the Aqua: If "Maiden of the Aqua", "Umi", and "Tornado Wall" are all on your side of the field, and "Umi" is destroyed, "Tornado Wall" is not destroyed because "Maiden of the Aqua" treats the field as "Umi" as soon as "Umi" leaves play.

Maiden of the Aqua: If you have "Maiden of the Aqua" and "Tornado Wall" on the field, and "Maiden of the Aqua" is attacked by "Dark Driceratops" and Battle Damage would be inflicted, "Tornado Wall" still prevents the damage during damage calculation, as "Maiden of the Aqua" will remain on the field until the end of the Damage Step.

Spirit Reaper: "Spirit Reaper" only forces your opponent to discard when "Spirit Reaper" attacks directly (such as when your opponent has no monsters on the field), AND when it inflicts at least 1 point of damage to the opponent's Life Points. So if your opponent uses"Tornado Wall" to prevent the damage, "Spirit Reaper" does not force the opponent to discard.