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 61 2.2 748 2.9
Vintage 42 2.9 748 2.9
Duel Commander 6 1 238 1

Details

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

Recent Top-8 Decks Playing Underground Sea

thedeck84 ·Vintage RC Qualifier · June 21, 2026 Vintage
1

Final: 1 | Swiss: 1

Main Deck

Sideboard

daibloXSC ·Vintage RC Qualifier · June 21, 2026 Vintage
4

Final: 4 | Swiss: 4

Main Deck

usea ·Vintage RC Qualifier · June 21, 2026 Vintage
5

Final: 5 | Swiss: 5

Main Deck

Sideboard

lethargicarcher ·Legacy Challenge 32 · June 21, 2026 Legacy
3

Final: 3 | Swiss: 3

desolutionist ·Vintage Challenge 32 · June 20, 2026 Vintage
2

Final: 2 | Swiss: 3

Main Deck

Sideboard

Navas ·Vintage Challenge 32 · June 20, 2026 Vintage
3

Final: 3 | Swiss: 2

Main Deck

Sideboard

thedeck84 ·Vintage Challenge 32 · June 20, 2026 Vintage
7

Final: 7 | Swiss: 6

Main Deck

Sideboard

JakeTMS ·Vintage Challenge 32 · June 20, 2026 Vintage
8

Final: 8 | Swiss: 7

Main Deck

wonderPreaux ·Legacy Challenge 32 · June 20, 2026 Legacy
7

Final: 7 | Swiss: 3

2ndSiegeRhino ·Legacy Challenge 32 · June 20, 2026 Legacy
8

Final: 8 | Swiss: 4

Sideboard

416FrowningTable ·Vintage Challenge 32 · June 19, 2026 Vintage
1

Final: 1 | Swiss: 1

Main Deck

Sideboard

Solidsnake408 ·Vintage Challenge 32 · June 19, 2026 Vintage
6

Final: 6 | Swiss: 4

Main Deck

desolutionist ·Vintage Challenge 32 · June 18, 2026 Vintage
1

Final: 1 | Swiss: 5

Main Deck

Sideboard

jake-upLVT ·Vintage Challenge 32 · June 18, 2026 Vintage
3

Final: 3 | Swiss: 7

Main Deck

Sideboard