Original dual (Reserved List)
Underground Sea
Approx price · $500.00
Underground Sea is the most expensive Magic land ever printed — a Reserved List original dual that enters untapped and taps for U or B with the Island and Swamp types.
Why run it
Is Underground Sea worth a slot?
At $500+, Underground Sea is a luxury flex, but it enables Wasteland-immune Islandwalk-triggering fixing that no other land matches. In cEDH Dimir builds it's essentially mandatory.
Alternatives
Cheaper picks & upgrades
Watery Grave ($15) hits 95% of the same use cases for 3% of the price. Fabled Wilds and the Duals-lite reprints from Alpha Investments closest cheaper approach.
Deck fit
Best decks for Underground Sea
Questions & Answers
FAQ
What does Underground Sea do?
Underground Sea is the most expensive Magic land ever printed — a Reserved List original dual that enters untapped and taps for U or B with the Island and Swamp types.
Is Underground Sea good in Commander?
At $500+, Underground Sea is a luxury flex, but it enables Wasteland-immune Islandwalk-triggering fixing that no other land matches. In cEDH Dimir builds it's essentially mandatory.
What is a cheaper alternative to Underground Sea?
Watery Grave ($15) hits 95% of the same use cases for 3% of the price. Fabled Wilds and the Duals-lite reprints from Alpha Investments closest cheaper approach.
How much does Underground Sea cost?
Underground Sea sits around $500.00 at time of writing. Prices fluctuate with reprints — check TCGplayer for current pricing.
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