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Set: Abyss Rising Card type: Effect Monster Rarity: Common Attack: 1800 Defense: 1300 Once per turn: You can discard 1 WATER monster to the Graveyard, then target 1 monster in either player's Graveyard; return that target to either the top or bottom of the...

Set: Cosmo Blazer Card type: Equip Spell Rarity: Common Attack: 0 Defense: 0 Equip only to a "Mermail" monster. It gains 800 ATK. When a Trap effect that was activated on your opponent's side of the field resolves, negate that effect, then send this...

Set: Abyss Rising Card type: Equip Spell Rarity: Common Attack: 0 Defense: 0 Equip only to a "Mermail" monster. It gains 400 ATK. When a monster effect that was activated on your opponent's side of the field resolves, negate that effect, then send this...

Set: Lord of the Tachyon Galaxy Card type: Equip Spell Rarity: Common Attack: 0 Defense: 0 Equip only to a "Mermail" monster. It gains 800 ATK. When a Spell effect that was activated on your opponent's side of the field resolves, negate that effect,...

Set: 2014 Mega-Tins Mega Pack Card type: Equip Spell Rarity: Common Attack: 0 Defense: 0 Equip only to a "Mermail" monster. It gains 800 ATK. When a Spell effect that was activated on your opponent's side of the field resolves, negate that effect, then...

Set: Cosmo Blazer Card type: Normal Trap Rarity: Common Attack: 0 Defense: 0 Target 1 face-up "Mermail" monster you control; it gains 1000 ATK until the End Phase. When this Set card is sent to the Graveyard: Target 1 monster your opponent controls; send...

Set: Abyss Rising Card type: Normal Trap Rarity: Ultimate Rare Attack: 0 Defense: 0 Special Summon 1 "Mermail" monster from your Deck. Its effects are negated. You cannot activate any Spell Cards. When this card leaves the field, destroy that monster. Destroy this card...

Set: Abyss Rising Card type: Continuous Trap Rarity: Ultra Rare Attack: 0 Defense: 0 Special Summon 1 "Mermail" monster from your Deck. Its effects are negated. You cannot activate any Spell Cards. When this card leaves the field, destroy that monster. Destroy this card...

Set: Abyss Rising Card type: Normal Trap Rarity: Super Rare Attack: 0 Defense: 0 Target 3 "Mermail" monsters in your Graveyard; Special Summon those targets in face-up Defense Position. Their effects are negated and they cannot declare an attack. Destroy them during the End...

Set: Supreme Darkness Card type: Normal Trap Rarity: Super Rare Draw cards equal to the number of different Monster Types among the monsters you control that are Fish, Sea Serpent, or Aqua monsters, also until the end of your next turn after this card...

Set: 2025 Mega-Pack Card type: Equip Spell Rarity: Ultra Rare Special Summon 1 "Atlantean" or "Mermail" monster from your hand or GY, and if you do, equip it with this card. If the equipped monster would be destroyed by battle or card effect, you...

Set: Rage of the Abyss Card type: Equip Spell Rarity: Common Special Summon 1 "Atlantean" or "Mermail" monster from your hand or GY, and if you do, equip it with this card. If the equipped monster would be destroyed by battle or card effect,...

Set: Abyss Rising Card type: Normal Trap Rarity: Rare Attack: 0 Defense: 0 Send 1 face-up "Umi" you control to the Graveyard; send all Spell and Trap cards on the field to the Graveyard.

Set: Dark Revelation Volume 3 Card type: Normal Spell Rarity: Common Attack: 0 Defense: 0 Pay 1000 Life Points. Declare a Type and an Attribute. Your opponent must send 1 monster with both the declared Type and Attribute from their hand or Deck to...

Set: Soul of the Duelist Card type: Normal Spell Rarity: Common Attack: 0 Defense: 0 Pay 1000 Life Points. Declare a Type and an Attribute. Your opponent must send 1 monster with both the Type and Attribute declared from his/her hand or Deck to...

Set: Battle Pack: Epic Dawn Card type: Effect Monster Rarity: Common Attack: 1700 Defense: 600 Once per turn, if this card would be destroyed by an effect that does not target it, it is not destroyed.

Set: Battle Pack: Epic Dawn Card type: Effect Monster Rarity: Starfoil Rare Attack: 1700 Defense: 600 Once per turn, if this card would be destroyed by an effect that does not target it, it is not destroyed.

Set: Tactical Evolution Card type: Effect Monster Rarity: Secret Rare Attack: 1700 Defense: 600 Once per turn, if this card would be destroyed by an effect that does not target it, it is not destroyed.

Set: Turbo Pack: Booster Five Card type: Effect Monster Rarity: Common Attack: 1700 Defense: 600 Once per turn, if this card would be destroyed by an effect that does not target it, it is not destroyed.

Set: Rage of the Abyss Card type: Effect Monster Rarity: Quarter Century Secret Rare Attack: 1600 Defense: 1600 (This card is always treated as a "Mermail" card.) You can Tribute this card from your hand and 1 "Atlantean" or "Mermail" monster from your hand...