A Legendary Ocean

Realm of the Sea Emperor Structure Deck SDRE-EN024 • common

Set: Realm of the Sea Emperor Structure Deck
Printing code: SDRE-EN024
Rarity: Common
Card type: Spell

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$1.25est. via TCGplayer

38,297cards tracked

12other printings of this card

Market

What it's worth

$1.25market price via TCGplayer · Sep 20, 2026

Estimate for a typical copy of A Legendary Ocean; condition, printing, and grading move the real number.

Lore

Why it matters

First appearing in the Realm of the Sea Emperor Structure Deck, A Legendary Ocean is a pivotal card for Water-attribute strategies due to its ability to lower the levels of monsters in hand and on the field. Because it provides both a passive stat adjustment and a way to summon high-level creatures more easily, it has remained a foundational utility piece in classic ocean-themed deck builds for years.

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Provenance

Where it came from

A Legendary Ocean was first introduced to the Yu-Gi-Oh! Trading Card Game in early 2003 as part of the Pharaonic Guardian set, though the version specified here originates from the 2012 Realm of the Sea Emperor Structure Deck. The card serves as a Field Spell that mechanically alters the game state by reducing the levels of Water monsters and modifying their attack and defense stats, a design intended to enable the summon of high-level monsters with greater ease.

The card was designed to support the classic archetype centered around Umi, a foundational card in the game's history. By functioning as a pseudo-name for Umi, it allows players to utilize various support cards that require the presence of the original ocean terrain. Its inclusion in the Realm of the Sea Emperor deck provided players with a consistent and accessible tool for competitive Water-attribute strategies, remaining a staple of the archetype due to its utility in board control and tactical flexibility.

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Other printings

Others named A Legendary Ocean

Same name, different printings and different cards — these sources have no shared id tying a reprint to its original.

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About

About A Legendary Ocean

A Legendary Ocean is a card in the Yu-Gi-Oh! catalog on collecto.rs. Realm of the Sea Emperor Structure Deck SDRE-EN024 • common. Catalog data is sourced from YGOProDeck. No public cards collectors track this one yet — adding yours would make you the first on collecto.rs.

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Where does the A Legendary Ocean catalog entry come from?

The catalog entry for A Legendary Ocean is sourced from YGOProDeck. Catalog-level facts stay consistent across every collector; your own data (condition, edition, acquisition notes) is yours.