Underground Sea

Reserved List
Land — Island Swamp

Oracle Text

(T mana: Add U mana or B mana.)

Format Legality

LegacyVintageDuel Commander

Competitive Play by Format

Top 8 decklists that played Underground Sea, by format.

Format Decks 30d Avg 30d Decks 12mo Avg 12mo
Legacy 63 2.3 750 2.9
Vintage 42 2.9 748 2.9
Duel Commander 6 1 237 1

Details

Set
30th Anniversary Edition
Rarity
Rare
Mana value
0
Collector #
281
Non-foil

Recent Top-8 Decks Playing Underground Sea

Tsubasa_Cat ·Vintage Challenge 32 · January 16, 2026 Vintage
6

Final: 6 | Swiss: 3

Main Deck

Sideboard

jibeta ·Vintage Challenge 32 · January 16, 2026 Vintage
4

Final: 4 | Swiss: 7

Main Deck

Sideboard

kasa ·Vintage Challenge 32 · January 16, 2026 Vintage
1

Final: 1 | Swiss: 4

Main Deck

Sideboard

GoblinElder ·Vintage Challenge 32 · January 15, 2026 Vintage
4

Final: 4 | Swiss: 5

Main Deck

Kenzaburo ·Vintage Challenge 32 · January 15, 2026 Vintage
6

Final: 6 | Swiss: 4

Main Deck

Sideboard

DrPP ·Legacy Challenge 32 · January 14, 2026 Legacy
4

Final: 4 | Swiss: 4

Main Deck

Sideboard

NeyMatoGrosso ·Legacy Challenge 32 · January 14, 2026 Legacy
3

Final: 3 | Swiss: 3

Main Deck

Sideboard

Dazai ·Legacy Challenge 32 · January 14, 2026 Legacy
1

Final: 1 | Swiss: 8

Sideboard

KingHairy ·Duel Commander Trial 16 · January 12, 2026 Duel Commander
4

Final: 4 | Swiss: 6

Main Deck

Creatures (18)
Sorceries (24)
Lands (37)

Sideboard

Pernobyl ·Duel Commander Trial 16 · January 12, 2026 Duel Commander
6

Final: 6 | Swiss: 4

Main Deck

Instants (30)
Lands (39)

Sideboard

GigaChadSigmaMale ·Duel Commander Trial 16 · January 12, 2026 Duel Commander
3

Final: 3 | Swiss: 5

Main Deck

Creatures (19)
Sorceries (24)
Lands (37)

Sideboard

SauTay ·Legacy Challenge 32 · January 11, 2026 Legacy
3

Final: 3 | Swiss: 4

Main Deck

Sideboard

Aced5 ·Legacy Challenge 32 · January 11, 2026 Legacy
2

Final: 2 | Swiss: 8

Main Deck

Sideboard

grindstone-cowboy ·Legacy Challenge 32 · January 11, 2026 Legacy
1

Final: 1 | Swiss: 3

Main Deck

Sideboard

Ecoscuro ·Vintage Challenge 32 · January 11, 2026 Vintage
1

Final: 1 | Swiss: 5

Main Deck

Sideboard

burrarun ·Vintage Challenge 32 · January 11, 2026 Vintage
6

Final: 6 | Swiss: 2

Main Deck

Sideboard

Erik157751 ·Vintage Challenge 32 · January 11, 2026 Vintage
3

Final: 3 | Swiss: 7

Main Deck

Sideboard

MultiformatSuperstar ·Vintage Challenge 32 · January 11, 2026 Vintage
7

Final: 7 | Swiss: 4

Main Deck

Sideboard

lordoflifegain ·Vintage Challenge 32 · January 11, 2026 Vintage
5

Final: 5 | Swiss: 1

Main Deck

Sideboard