Mermail Abyssbalaen

Aqua/Effect

You can discard 4 other "Mermail" monsters to the Graveyard; Special Summon this card from your hand. When you do: Target cards your opponent controls, up to the number of "Mermail" monsters in your Graveyard (if possible); this card gains 500 ATK, and if it does, destroy thos targets (if any). You can Tribute 1 other face-up Attack Position "Mermail" monster; this card gains the following effect this turn. // * At the start of the Damage Step, if this card battles a Defense Position monster. Destroy that monster.

Mermail Abyssdine

Aqua/Effect

When this card is added from your Deck or Graveyard to your hand by a card effect, if you control a face-up "Mermail" monster: You can Special Summon this card from your hand. When this card is Special Summoned by the effect of a "Mermail" monster: You can target 1 Level 3 or lower "Mermail" monster in your Graveyard; Special Summon that target. You can only use the effect of "Mermail Abyssdine" once per turn.

Mermail Abyssgunde

Aqua/Effect

If this card is discarded to the Graveyard: You can target 1 "Mermail" monster in your Graveyard, except "Mermail Abyssgunde"; Special Summon that target. You can only use the effect of "Mermail Abyssgunde" once per turn.

Mermail Abysshilde

Aqua/Effect

If this card is sent to the Graveyard: You can Special Summon 1 "Mermail" monster from your hand, except "Mermail Abysshilde". You can only use the effect of "Mermail Abysshilde" once per turn.

Mermail Abyssleed

Sea Serpent/Effect

You can discard 3 other WATER monsters to the Graveyard; Special Summon this card from your hand. When you do: You can target 1 "Abyss-" Spell/Trap Card in your Graveyard; add that target to your hand. You can Tribute 1 other face-up Attack Position "Mermail" monster; send 1 random card from your opponent's hand to the Graveyard. You can only use this effect of "Mermail Abyssleed" once per turn.

Mermail Abysslinde

Aqua/Effect

If this card on the field is destroyed and sent to the Graveyard: You can Special Summon 1 "Mermail" monster from your Deck, except "Mermail Abysslinde". You can only use the effect of "Mermail Abysslinde" once per turn.

Mermail Abysslung

Fish/Effect

Your opponent's monsters cannot target other face-up WATER monsters you control for attacks. All WATER monsters you control gain 300 ATK.

Mermail Abyssmander

Fish/Effect

You can banish this card from your Graveyard to activate 1 of these effects. // * Increase the Level of all "Mermail" monsters you currently control by 1. // * Increase the Level of all "Mermail" monsters you currently control by 2.

Mermail Abyssmegalo

Sea Serpent/Effect

You can discard 2 other WATER monsters to the Graveyard; Special Summon this card from your hand. When you do: You can add 1 "Abyss-" Spell/Trap Card from your Deck to your hand. You can Tribute 1 other face-up Attack Position WATER monster; this card can make a second attack during each Battle Phase this turn.

Mermail Abyssnerei

Aqua/Effect

(Quick Effect): You can discard this card, then target 1 WATER monster you control; destroy 1 other WATER monster in your hand or field, and if you do, the targeted monster gains ATK/DEF equal to the destroyed monster's original ATK/DEF, until the end of this turn. If this card is sent from the field to the GY: You can draw 1 card, then discard 1 card. You can only use each effect of "Mermail Abyssnerei" once per turn.

Mermail Abyssnose

Fish/Effect

When this card destroys an opponent's monster by battle and sends it to the Graveyard: You can discard 1 WATER monster to the Graveyard; Special Summon 1 "Mermail" monster from your Deck in face-up Defense Position. You can only use the effect of "Mermail Abyssnose" once per turn.

Mermail Abyssocea

Aqua/Effect

You can target 1 "Mermail" monster you control; Special Summon any number of Level 4 or lower "Mermail" monsters from your Deck whose combined Levels are less than or equal to the Level of that monster, then send that monster to the Graveyard. You can only use the effect of "Mermail Abyssocea" once per turn.

Mermail Abysspike

Fish/Effect

When this card is Normal or Special Summoned: You can discard 1 WATER monster to the Graveyard; add 1 Level 3 WATER monster from your Deck to your hand. You can only use the effect of "Mermail Abysspike" once per turn.

Mermail Abyssteus

Aqua/Effect

You can discard 1 other WATER monster to the GY; Special Summon this card from your hand. If Summoned this way: Add 1 Level 4 or lower "Mermail" monster from your Deck to your hand. You can only use this effect of "Mermail Abyssteus" once per turn.

Mermail Abyssturge

Fish/Effect

When this card is Normal or Special Summoned: You can discard 1 WATER monster to the Graveyard, then target 1 Level 3 or lower WATER monster in your Graveyard; add that target to your hand. You can only use the effect of "Mermail Abyssturge" once per turn.

Abyss-scale of Cetus

Equip only to a "Mermail" monster. It gains 800 ATK. When the effect of a Trap Card that was activated on your opponent's side of the field resolves, negate that effect, then send this card to the Graveyard.

Abyss-scale of the Kraken

Equip only to a "Mermail" monster. It gains 400 ATK. Negate any monster effect that activates on your opponent's side of the field, and if you do, send this card to the Graveyard.

Abyss-scale of the Mizuchi

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 send this card to the Graveyard.

Abyss-scorn

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 it to the Graveyard.

Abyss-sphere

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 during your opponent's next End Phase after activation.

Abyss-squall

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 Phase.

Abyss-strom

Send 1 face-up "Umi" you control to the Graveyard; send all Spell and Trap cards on the field to the Graveyard.

Mermail Abyssalacia

Sea Serpent/Link/Effect

Monsters this card points to gain 500 ATK/DEF. You can only use each of the following effects of "Mermail Abyssalacia" once per turn. ? During your opponent's turn (Quick Effect): You can send 1 card from your hand to the GY; add 1 "Mermail" monster from your Deck to your hand. ? If this card in its owner's possession is destroyed by an opponent's attack or card effect: You can send 1 WATER monster from your Deck to the GY, then target 1 WATER monster in your GY; Special Summon it in Defense Position.

Mermail Abyssgaios

Aqua/Xyz/Effect

While this face-up card has Xyz Material, Level 5 or higher monsters cannot attack. Once per turn, during either player's turn: You can detach 1 Xyz Material from this card; negate the effects of all face-up monsters your opponent currently controls that have less ATK than this card, until the end of the turn.

Mermail Abysstrite

Sea Serpent/Xyz/Effect

3 Level 3 monsters // During either player's turn, when your opponent targets exactly 1 face-up "Mermail" monster you control for an attack, or with a Spell/Trap effect that could have targeted this card (except during the Damage Step): You can detach 1 Xyz Material from this card; that attack