Activate only while "Umi" is on the field. While "Umi" is face-up on the field, you take no Battle Damage from attacking monsters. Destroy this card when "Umi" leaves the field.
As long as the game doesn't have MST and/or Dust Tornado (of low rarity), this card shouldn't be released: it will lead to too many auto-wins because the current selection of S/T removal isn't good enough to be added to EVERY deck.
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