Mermail King - Neptabyss is a WATER Sea Serpent Link Monster from the Limited Pack World Championship 2025 set. Identified by card number 25LP-EN013 and set code 25LP, this Yu-Gi-Oh! trading card is an Ultra Rare with a Holo finish. It belongs to the Abyss- archetype and has a Link Rating of 3 with 2300 ATK. The card provides Bottom-Left, Bottom, and Bottom-Right link arrows.
2025 • Yu-Gi-Oh! • Limited Pack World Championship 2025
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Raw / Ungraded
PriceCharting Price Guide · Guide Estimate evidence · captured Oct 21, 2026
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Each point is the last stored observation that day for this printing, condition, grader, autograph status and source. Gaps mean no observation; guide estimates and asking prices are not completed sales.Mermail King - Neptabyss is a Yu-Gi-Oh! trading card game card. It is a Link Monster of the Sea Serpent type with the WATER attribute. The card is part of the Limited Pack World Championship 2025 set, carrying the set code 25LP and card number 25LP-EN013. It is an Ultra Rare with a Holo finish. The card has 2300 ATK and a Link Rating of 3, providing Bottom-Left, Bottom, and Bottom-Right link arrows. It is part of the Abyss- archetype.
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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
Mermail King - Neptabyss
Game
Yu-Gi-Oh!
Rarity, print treatment, and game-specific stats for this card.
Ultra Rare
Card Stock
English
Holo
Water
Sea Serpent
3
2300 / ?
Bottom-Left, Bottom, Bottom-Right
Abyss-
Abilities, attacks, oracle text, and flavor text printed on the card.
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.
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