The Underground Sea (#290) from Magic: The Gathering's 1994 Revised Edition is a foundational dual land card producing both Island and Swamp mana.
Underground Sea
1994 • Magic: The Gathering • Revised Edition
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Price History
$987.20
Description
Released in 1994 as part of the Revised Edition (3ED), Underground Sea is card number 290 in the Magic: The Gathering base set. This Rare dual land card is a cornerstone for collectors and players who appreciate the foundational era of the trading card game. Unlike single-type lands, this card functions as both an Island and a Swamp, allowing you to tap it to add either blue or black mana to your resources. This flexibility was critical in early gameplay, enabling decks that relied on hybrid strategies to access multiple colors of magic without sacrificing speed. The card’s design reflects the minimalist aesthetic of early Magic releases, featuring clean text boxes and straightforward functionality. Illustrated by Rob Alexander, the visual presentation complements the card’s powerful utility, making it a visually distinct piece of TCG history. As a dual land, it has historically been sought after for its ability to smooth out mana bases, a trait that continues to resonate with players today. The Underground Sea remains a significant artifact in the evolution of card design, representing a time when simplicity and power were perfectly balanced. For collectors, owning a copy of this 1994 Revised Edition card is a nod to the origins of Magic: The Gathering. The card’s enduring legacy is evident in its continued relevance across various formats and its status as a key piece of the game’s early identity. Whether you are building a vintage collection or simply appreciate the engineering of early TCG mechanics, Underground Sea stands as a testament to the game’s creative foundation. Its dual nature offers a glimpse into the strategic depths that have made Magic: The Gathering a global phenomenon for decades.
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Card Details
The catalog profile below summarizes the card identity, featured subject, and notable collectible traits.
Catalog Profile
The core identity of the card within the set.
Featured Subject
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Featured
Underground Sea
Game
Magic: The Gathering
TCG Attributes
Rarity, print treatment, and game-specific stats for this card.
Rare
Rob Alexander
Card Stock
English
Land — Island Swamp
Card Text
Abilities, attacks, oracle text, and flavor text printed on the card.
({T}: Add {U} or {B}.)




















