Average Deck for Koma, Cosmos Serpent - Core Control

Alternate Names:

The Monstrous SerpentThe Monstrous Serpent

Koma, Cosmos Serpent
Rank #341
16decks
As CommanderAs CardAverage DeckDecks
Bracket
All12345
Budget
Any$$$$
Ezra Sassaman
Mar 12, 2026
Ezra Sassaman
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Levi Perry
Feb 4, 2026
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Decklist

Koma, Cosmos Serpent
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ArchidektPlaytest on Archidekt
Creatures
Instants
Sorceries
Artifacts
Enchantments
Planeswalkers
Lands
Basics
Back to Top
Adrix and Nev, Twincasters
Adrix and Nev, Twincasters
Aesi, Tyrant of Gyre Strait
Aesi, Tyrant of Gyre Strait
Arixmethes, Slumbering Isle
Arixmethes, Slumbering Isle
Birds of Paradise
Birds of Paradise
Elvish Mystic
Elvish Mystic
Enduring Vitality
Enduring Vitality
Fyndhorn Elves
Fyndhorn Elves
Garruk's Packleader
Garruk's Packleader
Hullbreaker Horror
Hullbreaker Horror
Junk Winder
Junk Winder
Koma, World-Eater
Koma, World-Eater
Llanowar Elves
Llanowar Elves
Murkfiend Liege
Murkfiend Liege
Nadir Kraken
Nadir Kraken
Octomancer
Octomancer
Sakashima of a Thousand Faces
Sakashima of a Thousand Faces
Sakura-Tribe Elder
Sakura-Tribe Elder
Serpent of Yawning Depths
Serpent of Yawning Depths
Slinn Voda, the Rising Deep
Slinn Voda, the Rising Deep
Spark Double
Spark Double
Spawning Kraken
Spawning Kraken
Summon: Leviathan
Summon: Leviathan
Tatyova, Benthic Druid
Tatyova, Benthic Druid
Instants (14)
An Offer You Can't Refuse
An Offer You Can't Refuse
Arcane Denial
Arcane Denial
Beast Within
Beast Within
Brainstorm
Brainstorm
Counterspell
Counterspell
Double Major
Double Major
Fog
Fog
Growth Spiral
Growth Spiral
Negate
Negate
Planar Genesis
Planar Genesis
Proctor's Gaze
Proctor's Gaze
Second Harvest
Second Harvest
Simic Charm
Simic Charm
Voidslime
Voidslime
Sorceries (12)
Cultivate
Cultivate
Explore
Explore
Explosive Vegetation
Explosive Vegetation
Farseek
Farseek
Irenicus's Vile Duplication
Irenicus's Vile Duplication
Kodama's Reach
Kodama's Reach
Migration Path
Migration Path
Nature's Lore
Nature's Lore
Overwhelming Stampede
Overwhelming Stampede
Rampant Growth
Rampant Growth
Urban Evolution
Urban Evolution
Whelming Wave
Whelming Wave
Artifacts (6)
Arcane Signet
Arcane Signet
Simic Signet
Simic Signet
Sol Ring
Sol Ring
Swiftfoot Boots
Swiftfoot Boots
Talisman of Curiosity
Talisman of Curiosity
Thought Vessel
Thought Vessel
Enchantments (8)
Doubling Season
Doubling Season
Elemental Bond
Elemental Bond
Imprisoned in the Moon
Imprisoned in the Moon
Kindred Discovery
Kindred Discovery
Parallel Lives
Parallel Lives
Primal Vigor
Primal Vigor
Propaganda
Propaganda
Tribute to the World Tree
Tribute to the World Tree
Planeswalkers (1)
Oko, the Ringleader
Oko, the Ringleader
Lands (14)
Breeding Pool
Breeding Pool
Command Tower
Command Tower
Dreamroot Cascade
Dreamroot Cascade
Flooded Grove
Flooded Grove
Hinterland Harbor
Hinterland Harbor
Myriad Landscape
Myriad Landscape
Overflowing Basin
Overflowing Basin
Rejuvenating Springs
Rejuvenating Springs
Reliquary Tower
Reliquary Tower
Simic Growth Chamber
Simic Growth Chamber
Tangled Islet
Tangled Islet
Temple of Mystery
Temple of Mystery
Vineglimmer Snarl
Vineglimmer Snarl
Yavimaya Coast
Yavimaya Coast
Basics (2)
Forest
10 Forest
Island
11 Island
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