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Poseidra Abyss, the Atlantean Dragon Lord

Poseidra Abyss, the Atlantean Dragon Lord

WATER · Sea Serpent / Xyz Effect Monster · Rank 7 · ATK 3000 / DEF 1800
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.

Is it legal?

TCGUnlimited (3)
OCGUnlimited (3)
Master DuelUnlimited (3)
Rarity: Ultra Rare (UR)
Genesys0 points

Price

About $0.19–$0.20 across printings and stores (as of Oct 10, 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 Poseidra Abyss, the Atlantean Dragon Lord: the share of those lists that also run each card.

Neptabyss, the Atlantean PrinceNeptabyss, the Atlantean Prince
100% of listsAbyssrhine, the Atlantean SpiritAbyssrhine, the Atlantean Spirit
100% of listsAbysstrite, the Atlantean SpiritAbysstrite, the Atlantean Spirit
100% of listsMermail AbyssteusMermail Abyssteus
100% of listsMarincess Coral AnemoneMarincess Coral Anemone
100% of listsSuperancient Deepsea King CoelacanthSuperancient Deepsea King Coelacanth
100% of listsMermail Shadow SquadMermail Shadow Squad
100% of listsAtlantean DragoonsAtlantean Dragoons
100% of listsMermail King - NeptabyssMermail King - Neptabyss
100% of listsDeep Sea MinstrelDeep Sea Minstrel
100% of listsMermail AbyssgaiosMermail Abyssgaios
100% of listsMoulinglacia the Elemental LordMoulinglacia the Elemental Lord
100% of lists

Printings

SetCodeRarity
Limited Pack World Championship 202525LP-EN012Secret Rare
Limited Pack World Championship 202525LP-EN012Ultra Rare
2025 Mega-Pack TinMP25-EN108Prismatic Secret Rare
Rage of the AbyssROTA-EN043Quarter Century Secret Rare
Rage of the AbyssROTA-EN043Ultra Rare
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