Poseidra, the Storming Atlantean is a WATER attribute Sea Serpent Effect Monster from the Yu-Gi-Oh! trading card game. Part of the Magnificent Monsters set (code MAMO), this card is numbered MAMO-EN055. It is a Level 7 monster with 2800 ATK and 1600 DEF. The card belongs to the Atlantean archetype and features an Ultra Rare Holo finish.
2026 • Yu-Gi-Oh! • Magnificent Monsters
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Poseidra, the Storming Atlantean is a Yu-Gi-Oh! trading card game card. It is an Effect Monster of the Sea Serpent type with the WATER attribute. This Level 7 monster has 2800 ATK and 1600 DEF. It is part of the Atlantean archetype. The card is from the Magnificent Monsters set, identified by the set code MAMO and card number MAMO-EN055. It has an Ultra Rare Holo finish.
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The catalog profile below summarizes the card identity, featured subject, and notable collectible traits.
The core identity of the card within the set.
The subject, team, league, and sport context tied to this card.
Featured
Poseidra, the Storming Atlantean
Game
Yu-Gi-Oh!
Rarity, print treatment, and game-specific stats for this card.
Ultra Rare
Card Stock
English
Holo
Water
Sea Serpent
7
2800 / 1600
Atlantean
Abilities, attacks, oracle text, and flavor text printed on the card.
While you control a monster, except "Poseidra, the Storming Atlantean", your opponent's monsters cannot target this card for attacks. You can only use each of the following effects of "Poseidra, the Storming Atlantean" once per turn. You can send 1 other WATER monster from your hand or face-up field to the GY; Special Summon this card from your hand. If this card is Normal or Special Summoned: You can send 1 "Atlantean" or "Mermail" monster from your Deck to the GY, then target 1 card your opponent controls; return it to the hand.
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