Underground Sea
1993 Alpha
Underground Sea is one of the ten original dual lands from Magic: The Gathering's Alpha set, producing both Island and Swamp mana without entering tapped. Alpha editions are distinguished by their rounded corners and are the rarest print run of the original core set, making high-grade copies extraordinarily scarce. As a staple in Legacy and Vintage formats, demand remains consistently strong among both competitive players and collectors.
HOLD or BUY — The most valuable dual land in Magic. Alpha and Beta copies in PSA 9 regularly trade above $10,000 — treat them as collectibles first, playables second. Revised copies are the entry point for Legacy players and represent strong long-term holds. A staple in every blue-black Legacy strategy including Grixis Delver, BUG Depths, and Reanimator. Demand is permanent — this card will never be reprinted in a tournament-legal form.