TCGenius.ai
Mermail Shadow Squad
WATER · Sea Serpent / Effect Monster · Level 3 · ATK 0 / DEF 1900
(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.
Is it legal?
TCGUnlimited (3)
OCGUnlimited (3)
Master DuelUnlimited (3)
Rarity: Ultra Rare (UR)
Genesys0 points
Price
About $0.67–$0.70 across printings and stores (as of Oct 9, 2026). See listings on TCGplayer · eBay · Cardmarket (EU)
Price history & alerts
Played in tournaments
In 5 recent tournament lists, mostly Mermail (4), Mermail Atlantean (1).
Most often played with
Across the tournament lists that run Mermail Shadow Squad: the share of those lists that also run each card.
Neptabyss, the Atlantean Prince100% of lists
Abyssrhine, the Atlantean Spirit100% of lists
Abysstrite, the Atlantean Spirit100% of lists
Mermail Abyssteus100% of lists
Marincess Coral Anemone100% of lists
Superancient Deepsea King Coelacanth100% of lists
Atlantean Dragoons100% of lists
Mermail King - Neptabyss100% of lists
Poseidra Abyss, the Atlantean Dragon Lord100% of lists
Deep Sea Minstrel100% of lists
Mermail Abyssgaios100% of lists
Moulinglacia the Elemental Lord100% of lists
Printings
| Set | Code | Rarity |
|---|---|---|
| 2025 Mega-Pack Tin | MP25-EN101 | Prismatic Secret Rare |
| Rage of the Abyss | ROTA-EN018 | Quarter Century Secret Rare |
| Rage of the Abyss | ROTA-EN018 | Ultra Rare |
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