Each "Mermail" monster is based on a real life aquatic animal. The original three Level 3 "Mermail" monsters released in Abyss Rising, "Mermail Abysslinde", "Mermail Abyssgunde", and "Mermail Abysshilde" have names coming from the Rhinemaidens (Woglinde, Wellgunde, Flosshilde) in the German opera Der Ring des Nibelungen (The Ring of the Nibelung) by Richard Wagner. The Level 7 "Mermail" monsters (excluding "Mermail Abyssbalaen)", "Mermail Abyssmegalo", "Mermail Abyssleed" and "Mermail Abyssteus" take inspiration from extinct aquatic species. The Xyz Monsters, "Mermail Abyssgaios" and "Mermail Abysstrite" take inspiration from Ancient Greek deities.
|Abyssgunde||Wellgunde (Rhinemaiden) / Clown fish|
|Abysshilde||Flosshilde (Rhinemaiden) / Eel|
|Abysslinde||Woglinde (Rhinemaiden) / Koi|
|Abyssnerei||Nereid / Coelacanth|
|Abyssocea||Oceanid / Flying Fish|
Extra Deck members
|Abyssalacia||2||Sea Serpent||Salacia / Human|
|Abysstrite||3||Amphitrite / Dolphin|
|Abyssgaios||7||Aqua||Poseidon / Atlantean Dragon|
The "Mermails" used to peacefully live in their underwater city, "Lemuria", and albeit good in the arts of fighting, they would rarely use this ability. However, sudden changes in the earth's crust made "Lemuria" rise above the ocean, leaving the "Mermails" homeless. In that moment, the Emperor of the "Atlantean" army, "Poseidra", choose to let the "Mermails" live under his protection, but they would have to obey his orders. Using the great treasure of the "Mermails", the Golden Ring, to control the weather, "Poseidra" ordered an all-out attack against their archenemies, the "Fire Kings". Unfortunately, “Poseidra’s” body was taken over by the king residing in the Ring. The king eliminated the “Atlantean” army with ease. It appears that “Abysstrite” sealed the Ring away because the advent of the king required a sacrifice.
The "Mermail" archetype focuses on discarding or tributing WATER monsters to Special Summon "Mermail" monsters and activate their effects, and triggering additional effects off of these discards or tributes to generate advantage. They secondarily focus on interacting with the "Abyss-" archetype of Spell/Trap cards to support their strategy.
Most Level 3 "Mermail" monsters (excluding "Abyssdine" and "Abyssocea") have similar Trigger Effects that are triggered when they are sent to the Graveyard, which usually Special Summons another "Mermail".
|Level 3 Mermail Summary|
|Mermail||Trigger Conditions (If/When this card is...)||Triggered Effect|
|Abyssgunde||Discarded to GY||Special Summon 1 "Mermail" monster from GY, except "Abyssgunde".|
|Abysshilde||Sent to GY||Special Summon 1 "Mermail" monster from hand, except "Abysshilde".|
|Abysslinde||Destroyed and sent from field to GY||Special Summon 1 "Mermail" monster from Deck, except "Abysslinde".|
|Abyssnerei||Sent from field to GY||Draw 1 card, then discard 1 card.|
Most Level 4 "Mermail" monsters (excluding "Abysslung" and "Abyssmander") have Trigger Effects that can be activated when they are Normal or Special Summoned, and their effects involve discarding a WATER monster, which will trigger the above Level 3 monsters' effects.
|Level 4 Mermail Summary|
|Mermail||Trigger Conditions (If/When this card [is]...)||Triggered Effect|
|Abyssnose||Destroys an opponent's monster by battle and sends it to the GY||Discard 1 WATER monster to GY, Special Summon 1 "Mermail" monster from Deck (in Defense).|
|Abysspike||Normal or Special Summoned||Discard 1 WATER monster to GY, add 1 Level 3 WATER monster from Deck to hand.|
|Abyssturge||Normal or Special Summoned||Discard 1 WATER monster to GY, add 1 Level ≤3 WATER monster from GY to hand.|
The Level 7 "Mermail" monsters each share two effects with a common effect pattern.
- "You can discard [Discard Cost] to the GY; Special Summon this card from your hand. When Summoned this way: You can [Effect 1]"
- "You can Tribute [Tribute Cost]; [Effect 2]"
These effects will further trigger the Level 3 "Mermail" monsters' effects, and can also trigger some the ones that only trigger when sent from the field to GY via tributing.
|Level 7 Mermail Summary|
|Mermail||Effect 1 Details||Effect 2 Details|
|Discard Cost||Effect 1||Tribute Cost[a]||Effect 2|
|Abyssteus||1 WATER||Add 1 Level ≤4 "Mermail" monster from Deck to hand.||N/A|
|Abyssmegalo||2 WATER||Add 1 "Abyss-" Spell/Trap from Deck to hand.||1 WATER||It can make a second attack this turn.|
|Abyssleed||3 WATER||Add 1 "Abyss-" Spell/Trap from GY to hand.||1 "Mermail"||Send 1 random card from the opponent's hand to the GY.|
||1 "Mermail"||It gains: "At the start of the Damage Step, if it battles a Defense Position monster: Destroy that monster."|
The boss monster of the archetype, "Mermail Abyssgaios", is a Rank 7 Xyz monster that can prevent Level 5 or higher monsters from attacking, and negate the effects of opposing monsters with less ATK than it.
The "Mermail" archetype supports, and is supported by, the "Abyss-" archetype of Spell/Traps. The "Abyss-" Traps provide some temporary power boosts or temporary Special Summons of "Mermail" monsters. The "Abyss-" Spells meanwhile are far more interesting: all the "Abyss-" Spells, the "Abyss-scale", are Equip Spells that can only be equipped to "Mermail" monsters, and both boost the equipped monster's attack and provide 1 negation to an opponent's effect; "Kraken" negates a Monster, "Mizuchi" negates a Spell, and "Cetus" negates a Trap. These negations are mandatorily applied to the first applicable effect they face, and they will immediately send themselves to the GY after negating one effect. Despite these drawbacks, the "Abyss-scale" cards are still searchable negates can significantly disrupt the opponent's plays.
The main "Mermail" playstyle thus involves swarming "Mermail" monsters with Special Summoning effects, gaining advantage off of their own discards and tributes, and ultimately either beatdown the opponent by summoning several Level 7 beaters or controlling the field with "Abyssgaios" and the "Abyss-scale" Spells. "Abyssmegalo" is thus vitally important for each of the three components of this strategy; it is a Level 7 beatstick that can Special Summon itself, discard other "Mermail" monsters, and search "Abyss-" Spell/Traps.
The "Abyss-" trap card "Abyss-strom" connects the archetype to the "Umi" series of Field Spells, and the archetype does thematically have its own "archetypal Umi" in the form of "Lemuria, the Forgotten City". Though "Lemuria" is generic and does not specifically support "Mermail", it does support the "Mermail" playstyle of swarming monsters and making Xyz plays, enabling Xyz Monsters of other Ranks to be made.
The "Mermail" archetype synergizes especially well with the "Atlantean" archetype, since their effects are activated when sent to the graveyard to activate a WATER monsters effect. By discarding "Atlantean Heavy Infantry", "Atlantean Marksman" or "Atlantean Dragoons", to activate the "Mermails" effects you can destroy a card on the field ("Heavy Infantry" and "Marksman") or search your Deck for any Sea Serpent monster ("Dragoons"), such as "Abyssmegalo", while also gaining the "Mermail's" effects.
|Atlantean Mermail Deck (Ver. 1)|
|Atlantean Mermail Deck (Ver. 2)|
|New Atlantean Mermail Deck|
- Cards that prevent searching or Special Summoning from the Deck, such as "Thunder King Rai-Oh", "Mistake", or "Deck Lockdown", slows down the archetype significantly, as the archetype requires significant searching to make combo plays and maintain their grind game.
- Cards that negate card effect activations in the GY, such as "Debunk", "Silent Graveyard", "Necrovalley", "The End of Anubis", or "Soul Drain", halts many of the key GY monster effects the archetype.
- Cards that banish cards sent to the GY, such as "Macro Cosmos" and "Dimensional Fissure", also prevents the archetype from activating their GY effects. It can also prevent "Moulinglacia the Elemental Lord" from being Summoned.
- The archetype's need for discarding and tributing friendly monsters means that it struggles to maintain its grind game if built or played poorly.
- Tributes must be other Attack Position monsters.