Mermail Deck Breakdown

WATER 3

(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 or field; take 1 Level 7 Fish, Sea Serpent, or Aqua monster from your Deck and either add it to your hand or Special Summon it, also you cannot Special Summon from the Extra Deck for the rest of this turn, except WATER monsters. During your opponent's turn (Quick Effect): You can banish this card from your GY and discard 1 card to the GY; draw 1 card. You can only use each effect of "Abyssrhine, the Atlantean Spirit" once per turn.

WATER 4

All Level 3 or lower Sea Serpent-Type monsters you control can attack your opponent directly. When this card is sent to the Graveyard to activate a WATER monster's effect: Add 1 Sea Serpent-Type monster from your Deck to your hand, except "Atlantean Dragoons".

WATER 2

During your Main Phase, you can Normal Summon 1 Level 4 or lower Sea Serpent-Type monster in addition to your Normal Summon/Set. (You can only gain this effect once per turn.) When this card is sent to the Graveyard to activate a WATER monster's effect: Target 1 face-up card your opponent controls; destroy that target.

WATER 3

When this card inflicts battle damage to your opponent: You can Special Summon 1 Level 4 or lower "Atlantean" Sea Serpent-Type monster from your Deck, except "Atlantean Marksman". When this card is sent to the Graveyard to activate a WATER monster's effect: Target 1 Set card your opponent controls; destroy that target.

WIND 1

If a card(s) is added from the Main Deck to your opponent's hand, except during the Draw Phase (Quick Effect): You can send this card from your hand to the GY; for the rest of this turn, cards cannot be added from either player's Main Deck to the hand.

WATER 4

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 this effect of "Mermail Abysspike" once per turn.

WATER 7

You can discard 1 other WATER monster to the GY; Special Summon this card from your hand. When Summoned this way: You can 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.

WATER 3

(This card is always treated as an "Atlantean" card.) You can discard 1 card to the GY; WATER monsters you currently control become Level 7 until the end of this turn. If this card is sent to the GY to activate a WATER monster's effect: Special Summon 1 Level 4 or lower "Atlantean" or "Mermail" monster from your Deck, except "Mermail Shadow Squad", also you cannot Special Summon from the Extra Deck for the rest of this turn, except WATER monsters. You can only use each effect of "Mermail Shadow Squad" once per turn.

WATER 8

Cannot be Normal Summoned/Set. Must be Special Summoned (from your hand) by having exactly 5 WATER monsters in your GY. If this card is Special Summoned: Discard 2 random cards from your opponent's hand (or their entire hand, if less than 2). You can only use this effect of "Moulinglacia the Elemental Lord" once per turn. If this face-up card leaves the field, skip the Battle Phase of your next turn.

WIND 4

If you control no cards (Quick Effect): You can discard this card; apply these effects this turn. ● Each time your opponent Special Summons a monster(s) from the Deck and/or Extra Deck, immediately draw 1 card. ● Once, during this End Phase, if the number of cards in your hand is more than the number of cards your opponent controls +6, you must randomly shuffle cards from your hand into the Deck so the number in your hand equals the number your opponent controls +6. You can only activate 1 other "Mulcharmy" monster effect, the turn you activate this effect.

WATER 4

If you control no cards (Quick Effect): You can discard this card; apply these effects this turn. ● Each time your opponent Normal or Special Summons a monster(s) from the hand, immediately draw 1 card. ● Once, during this End Phase, if the number of cards in your hand is more than the number of cards your opponent controls +6, you must randomly shuffle cards from your hand into the Deck so the number in your hand equals the number your opponent controls +6. You can only activate 1 other "Mulcharmy" monster effect, the turn you activate this effect.

WATER 1

You can send 1 "Atlantean" monster from your Deck to the Graveyard, except "Neptabyss, the Atlantean Prince"; add 1 "Atlantean" card from your Deck to your hand, except "Neptabyss, the Atlantean Prince". If this card is sent to the Graveyard to activate a WATER monster's effect: Target 1 "Atlantean" monster in your Graveyard, except "Neptabyss, the Atlantean Prince"; Special Summon it. You can only use each effect of "Neptabyss, the Atlantean Prince" once per turn.

WATER 7

Once per turn: You can discard 1 card; Special Summon as many Level 4 or lower Fish-Type monsters as possible from your Deck, but they cannot declare an attack and their effects are negated. During either player's turn, when this face-up card on the field is targeted by a card effect: You can Tribute 1 other Fish-Type monster; negate the activation, and if you do, destroy that card.

FIRE 3

When a card or effect is activated that includes any of these effects (Quick Effect): You can discard this card; negate that effect. ● Add a card from the Deck to the hand. ● Special Summon from the Deck. ● Send a card from the Deck to the GY. You can only use this effect of "Ash Blossom & Joyous Spring" once per turn.

WATER 3

You can discard this card and 1 WATER monster; look at your opponent's hand and banish 1 card from their hand face-up, until the End Phase. If this card is Special Summoned: You can send the top 3 cards of your Deck to the GY, then target 1 Level 4 or lower WATER monster in your GY, except "Deep Sea Minstrel"; place it on the top or bottom of the Deck. You can only use each effect of "Deep Sea Minstrel" once per turn.

WATER 3

During either turn, except the End Phase (Quick Effect): You can discard this card; apply this effect this turn. You can only use this effect of "Ghost Sister & Spooky Dogwood" once per turn. ● Each time your opponent Special Summons an Effect Monster(s) during the Main Phase or Battle Phase, you gain LP equal to that monster's ATK. If you did not gain LP by this effect, your LP are halved during the End Phase.

WATER 7

This card's name becomes "Icejade Cenote Enion Cradle" while equipped with an Equip Card. You can discard 1 other "Icejade" card or WATER monster; Special Summon this card from your hand, then you can Special Summon 1 "Icejade Token" (Aqua/WATER/Level 3/ATK 0/DEF 0). While that Token is in the Monster Zone, the player who Summoned it cannot Special Summon monsters from the Extra Deck, except WATER monsters. You can only use this effect of "Icejade Ran Aegirine" once per turn.

Spell Equip

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.

Spell Equip

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 can send this card to the GY instead. You can banish this card from your GY, then target up to 3 of your Fish, Sea Serpent, and/or Aqua monsters that are banished or in your GY; shuffle them into the Deck. You can only use this effect of "Abyss-sting Triaina" once per turn. You can only activate 1 "Abyss-sting Triaina" per turn.

Spell Quick

Target 1 monster in your opponent's GY; banish it, and if you do, until the end of the next turn, its effects are negated, as well as the activated effects and effects on the field of monsters with the same original name.

Spell Normal

Send 1 monster from your hand to the GY; Special Summon 1 Level 1 monster from your hand or Deck.

Spell Normal

If your opponent has activated a monster effect during this turn: Set 1 Normal Spell/Trap directly from your Deck, except "Triple Tactics Thrust", or if your opponent controls a monster, you can add it to your hand instead. That Set card cannot be activated this turn. You can only activate 1 "Triple Tactics Thrust" per turn.

Trap Normal

This turn, any monster sent to the GY is banished instead.

Trap Normal

Declare 1 monster card type (Ritual, Fusion, Synchro, Xyz, or Pendulum); for the rest of this turn, neither player can Special Summon monsters of the declared type, also negate the effects of all monsters of that type while they are on the field. You can only activate 1 "Dimensional Barrier" per turn.

Trap Normal

If your opponent controls a card, you can activate this card from your hand. When a card or effect is activated that includes an effect that Special Summons a monster(s): Negate that effect, then if you have a Trap in your GY, destroy that card. If you activated this card from your hand, you cannot activate the effects of LIGHT, EARTH, and WIND monsters for the rest of this Duel. You can only activate 1 "Dominus Impulse" per turn.

Trap Normal

At the end of the Battle Phase, if your opponent controls more cards than you do: You can make your opponent banish cards from their field face-down so they control the same number of cards as you do. If you control no cards, you can activate this card from your hand.

Trap Normal

Target 1 face-up monster your opponent controls; negate its effects (until the end of this turn), then, if this card was Set before activation and is on the field at resolution, for the rest of this turn all other Spell/Trap effects in this column are negated. If you control no cards, you can activate this card from your hand.

Trap Normal

Target 1 Fish, Sea Serpent, or Aqua monster you control and 2 cards your opponent controls; destroy them. You can banish this card from your GY, then target 1 face-up monster on the field; if it is a WATER monster, the next time it would be destroyed by card effect this turn, it is not destroyed. If it is not, it becomes WATER. You can only use each effect of "Virtue Stream" once per turn.

WATER

2 WATER monsters You can target 1 WATER monster with 1500 or less ATK in your GY; Special Summon it to your zone this card points to, also you cannot Special Summon monsters for the rest of this turn, except WATER monsters. If this card is sent from the field to the GY: You can target 1 "Marincess" card in your GY, except "Marincess Coral Anemone"; add it to your hand. You can only use each effect of "Marincess Coral Anemone" once per turn.

WATER

2 Fish, Sea Serpent, and/or Aqua monsters 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.

WATER

2+ monsters, including a Fish, Sea Serpent, or Aqua monster Your opponent cannot target WATER monsters this card points to with card effects. You can only use each of the following effects of "Mermail King - Neptabyss" once per turn. If a WATER monster(s) is sent to the GY to activate a card or effect (except during the Damage Step): You can take 1 "Abyss-" Equip Spell from your Deck or GY and either add it to your hand or equip it to this card. If this card in its owner's possession is destroyed by an opponent's card: You can add 1 "Atlantean" or "Mermail" monster from your Deck to your hand.

WATER

1+ Effect Monsters You can only control 1 "Worldsea Dragon Zealantis". You can only use each of the following effects of "Worldsea Dragon Zealantis" once per turn. During your Main Phase: You can banish all monsters on the field, then Special Summon as many monsters as possible that were banished by this effect, to their owners' fields, face-up, or in face-down Defense Position. During the Battle Phase (Quick Effect): You can destroy cards on the field up to the number of co-linked monsters on the field.

WATER 10

1 WATER Tuner + 1+ non-Tuner monsters (Quick Effect): You can activate this effect; face-up monsters you control cannot be destroyed, or banished, by your opponent's card effects this turn. Then, if you activated this effect in response to your opponent's card or effect activation, and your opponent has a card(s) with that name on their field and/or GY, you can banish those cards. If a card(s) is banished by your opponent's card effect, while this card is in your GY (except during the Damage Step): You can Special Summon this card. You can only use each effect of "Icejade Gymir Aegirine" once per turn.

WATER 10

1 Tuner + 1+ non-Tuner monsters For each banished card, this card gains 100 ATK/DEF and monsters your opponent controls lose 100 ATK/DEF. If this card would be destroyed by card effect, you can banish 1 card from your GY instead. If a card(s) is banished (except during the Damage Step): You can banish 1 card each from both your opponent's field and GY. You can only use this effect of "Swordsoul Supreme Sovereign - Chengying" once per turn.

WATER

2 Level 4 monsters While this card has a material attached that was originally WATER, all WATER monsters you control gain 500 ATK. Once per turn (Quick Effect): You can detach 1 material from this card; your opponent cannot activate any card effects in their GY this turn.

WATER

2 Level 4 WATER monsters Once per turn: You can detach 1 material from this card; Special Summon 1 Rank 3 or lower WATER Xyz Monster from your Extra Deck. This card cannot attack for the rest of this turn.

WATER

2 Level 3 monsters If this card is Special Summoned: You can add 1 "Virtue Stream" from your Deck to your hand. You can activate 1 of these effects; ● Detach 1 material from a monster you control, then add 1 Fish, Sea Serpent, or Aqua monster from your GY to your hand, except "LeVirtue Dragon". ● Target 2 Xyz Monsters on the field; attach 1 material from 1 of those monsters to the other. You can only use each effect of "LeVirtue Dragon" once per turn.

WATER

2 Level 7 WATER monsters 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.

WATER

3 Level 7 monsters Once per turn, you can also Xyz Summon "Poseidra Abyss, the Atlantean Dragon Lord" by using 1 "Atlantean" or "Mermail" Xyz Monster you control. (Transfer its materials to this card.) Once per turn: You can detach 2 materials from this card, then send 1 WATER monster from your hand or Deck to the GY; return up to 3 cards your opponent controls to the hand. If this Xyz Summoned card is sent to the GY: You can discard 1 card to the GY; Special Summon 3 Level 3 or lower Fish, Sea Serpent, and/or Aqua monsters from your hand and/or GY.

WATER

2 Level 2 Aqua-Type monsters Once per turn, during the Standby Phase: You can detach 1 Xyz Material from this card; Special Summon 1 "Frog" monster from your Deck. Once per turn, during either player's turn, when your opponent activates a Spell/Trap Card, or monster effect: You can send 1 Aqua-Type monster from your hand or face-up from your field to the Graveyard; negate the activation, and if you do, destroy that card, then you can Set it to your field. If this card is sent to the Graveyard: You can target 1 WATER monster in your Graveyard; add it to your hand.