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

Milkshake_ ·Vintage Challenge 32 · January 18, 2026 Vintage
4

Final: 4 | Swiss: 6

Main Deck

Sideboard

s8shock ·Vintage Challenge 32 · January 18, 2026 Vintage
8

Final: 8 | Swiss: 8

Main Deck

Sideboard

Lord_Beerus ·Legacy Challenge 32 · January 18, 2026 Legacy
2

Final: 2 | Swiss: 4

Sideboard

fredmcfred ·Legacy Challenge 32 · January 18, 2026 Legacy
3

Final: 3 | Swiss: 1

Main Deck

Sideboard

Sommertroll ·Vintage Challenge 32 · January 17, 2026 Vintage
8

Final: 8 | Swiss: 6

Main Deck

Sideboard

i_b_TRUE ·Vintage Challenge 32 · January 17, 2026 Vintage
3

Final: 3 | Swiss: 7

Main Deck

Sideboard

AlpInco ·Vintage Challenge 32 · January 17, 2026 Vintage
6

Final: 6 | Swiss: 2

Main Deck

Sideboard

Lord_Beerus ·Legacy Challenge 32 · January 17, 2026 Legacy
6

Final: 6 | Swiss: 3

Sideboard

ecobaronen ·Legacy Challenge 32 · January 17, 2026 Legacy
3

Final: 3 | Swiss: 2

Main Deck

Sideboard

Dazai ·Legacy Challenge 32 · January 17, 2026 Legacy
5

Final: 5 | Swiss: 1

Sideboard

Ryuho090 ·Legacy Challenge 32 · January 17, 2026 Legacy
1

Final: 1 | Swiss: 8

RIDDLE0423 ·Legacy Challenge 32 · January 17, 2026 Legacy
2

Final: 2 | Swiss: 6

Sideboard

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

Final: 4 | Swiss: 7

Main Deck

Sideboard

stu909090 ·Legacy Challenge 32 · January 16, 2026 Legacy
2

Final: 2 | Swiss: 6

Main Deck

Sideboard

grindstone-cowboy ·Legacy Challenge 32 · January 16, 2026 Legacy
1

Final: 1 | Swiss: 8

Main Deck

Sideboard

ReformedPaolo ·Legacy Challenge 32 · January 16, 2026 Legacy
6

Final: 6 | Swiss: 2

Sideboard

Ark4n ·Legacy Challenge 32 · January 16, 2026 Legacy
3

Final: 3 | Swiss: 4

Main Deck

Sideboard

Oceansoul92 ·Legacy Challenge 32 · January 16, 2026 Legacy
5

Final: 5 | Swiss: 1

Sideboard

Frejat ·Vintage Challenge 32 · January 16, 2026 Vintage
7

Final: 7 | Swiss: 5

Main Deck

Sideboard

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

Final: 6 | Swiss: 3

Main Deck

Sideboard