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Underground Sea (290)
FBB · Foreign Black Border · rare
Mana cost — Mana value — Type Land — Island Swamp Rarity rare Colors — EDHREC rank 296
({T}: Add {U} or {B}.)
Printings
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Price history
$1288.59 · 2026-08-05
$1336.41 · 2026-08-07
$1336.41 · 2026-08-08
$1336.41 · 2026-08-09
$1365.88 · 2026-08-10
$1365.88 · 2026-08-11
$1365.88 · 2026-08-12
$1372.98 · 2026-08-13
$1365.19 · 2026-08-14
$1365.19 · 2026-08-15
$1365.19 · 2026-08-16
$1409.88 · 2026-08-17
$1409.88 · 2026-08-18
$1409.88 · 2026-08-19
$1411.21 · 2026-08-20
$1401.78 · 2026-08-21
$1401.78 · 2026-08-22
$1401.78 · 2026-08-23
$1401.78 · 2026-08-24
$1401.78 · 2026-08-25
$1401.78 · 2026-08-26
$1392.49 · 2026-08-27
$1392.49 · 2026-08-28
$1415.41 · 2026-08-30
$1415.41 · 2026-09-03
$1415.41 · 2026-09-04
$1415.41 · 2026-09-05
$1415.41 · 2026-09-06
$1415.41 · 2026-09-07
$1415.41 · 2026-09-08
$1528.00 · 2026-09-09
$1528.00 · 2026-09-10
$1528.00 · 2026-09-11
$1585.53 · 2026-09-12
$1585.53 · 2026-09-13
$1585.53 · 2026-09-14
$1585.53 · 2026-09-15
$1585.53 · 2026-09-16
$1621.80 · 2026-09-17
$1621.80 · 2026-09-19
$1579.64 · 2026-09-20
$1579.64 · 2026-09-21
$1579.64 · 2026-09-22
$1579.64 · 2026-09-23
$1624.80 · 2026-09-24
$1624.80 · 2026-09-25
$1624.80 · 2026-09-26
$1624.80 · 2026-09-27
$1288.59
$1624.80
USD · 2026-08-05 → 2026-09-27
Latest prices
Provider Type Normal Foil Etched Date
cardmarket
retail
$1624.80
—
—
2026-09-27
Buy
Legality
Format Status
Legacy Legal Vintage Legal Commander Legal Oathbreaker Legal Oldschool Legal Predh Legal Duel Legal
Rulings
2008-10-01: This has the mana abilities associated with both of its basic land types.2008-10-01: This has basic land types, but it isn't a basic land. Things that affect basic lands don't affect it. Things that affect basic land types do.
Other languages
Language Name
French Mer souterraine German Unterirdischer See Italian Mare Sotterraneo
