Average Deck for Koma, Cosmos Serpent - Sea Creatures
Alternate Names:
The Monstrous SerpentThe Monstrous Serpent
Koma, Cosmos Serpent
Rank #341
124decks
Mar 12, 2026
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Decklist
Commander
- 1Koma, Cosmos SerpentKoma, Cosmos Serpent
Creatures (27)
- 1Adrix and Nev, TwincastersAdrix and Nev, Twincasters
- 1Aesi, Tyrant of Gyre StraitAesi, Tyrant of Gyre Strait
- 1Arixmethes, Slumbering IsleArixmethes, Slumbering Isle
- 1Birds of ParadiseBirds of Paradise
- 1Hullbreaker HorrorHullbreaker Horror
- 1Inkwell LeviathanInkwell Leviathan
- 1Junk WinderJunk Winder
- 1Kiora, Sovereign of the DeepKiora, Sovereign of the Deep
- 1Koma, World-EaterKoma, World-Eater
- 1Llanowar ElvesLlanowar Elves
- 1Murkfiend LiegeMurkfiend Liege
- 1Nadir KrakenNadir Kraken
- 1Sakashima of a Thousand FacesSakashima of a Thousand Faces
- 1Sakura-Tribe ElderSakura-Tribe Elder
- 1Scourge of FleetsScourge of Fleets
- 1Serpent of Yawning DepthsSerpent of Yawning Depths
- 1Slinn Voda, the Rising DeepSlinn Voda, the Rising Deep
- 1Spark DoubleSpark Double
- 1Spawning KrakenSpawning Kraken
- 1Stormsurge KrakenStormsurge Kraken
- 1Stormtide LeviathanStormtide Leviathan
- 1Summon: LeviathanSummon: Leviathan
- 1Sword Coast SerpentSword Coast Serpent
- 1Tatyova, Benthic DruidTatyova, Benthic Druid
- 1The Unagi of Kyoshi IslandThe Unagi of Kyoshi Island
- 1TromokratisTromokratis
- 1Xolatoyac, the Smiling FloodXolatoyac, the Smiling Flood
Instants (11)
- 1Arcane DenialArcane Denial
- 1Beast WithinBeast Within
- 1CounterspellCounterspell
- 1Cyclonic RiftCyclonic Rift
- 1Double MajorDouble Major
- 1Growth SpiralGrowth Spiral
- 1Heroic InterventionHeroic Intervention
- 1NegateNegate
- 1Return of the WildspeakerReturn of the Wildspeaker
- 1Second HarvestSecond Harvest
- 1Simic CharmSimic Charm
Sorceries (10)
- 1CultivateCultivate
- 1ExploreExplore
- 1FarseekFarseek
- 1Irenicus's Vile DuplicationIrenicus's Vile Duplication
- 1Kodama's ReachKodama's Reach
- 1Nature's LoreNature's Lore
- 1Rampant GrowthRampant Growth
- 1Skyshroud ClaimSkyshroud Claim
- 1Three VisitsThree Visits
- 1Whelming WaveWhelming Wave
Artifacts (7)
- 1Arcane SignetArcane Signet
- 1Helm of the HostHelm of the Host
- 1Lightning GreavesLightning Greaves
- 1Simic SignetSimic Signet
- 1Sol RingSol Ring
- 1Swiftfoot BootsSwiftfoot Boots
- 1Thought VesselThought Vessel
Enchantments (8)
- 1Doubling SeasonDoubling Season
- 1Elemental BondElemental Bond
- 1Garruk's UprisingGarruk's Uprising
- 1Ominous SeasOminous Seas
- 1Parallel LivesParallel Lives
- 1Quest for Ula's TempleQuest for Ula's Temple
- 1Rhystic StudyRhystic Study
- 1Tribute to the World TreeTribute to the World Tree
Planeswalker (1)
- 1Kiora, the Crashing WaveKiora, the Crashing Wave
Lands (35)
- 1Barkchannel PathwayBarkchannel Pathway
- 1Breeding PoolBreeding Pool
- 1Command TowerCommand Tower
- 1Dreamroot CascadeDreamroot Cascade
- 1Flooded GroveFlooded Grove
- 10ForestForest
- 1Hinterland HarborHinterland Harbor
- 11IslandIsland
- 1Mosswort BridgeMosswort Bridge
- 1Rejuvenating SpringsRejuvenating Springs
- 1Reliquary TowerReliquary Tower
- 1Simic Growth ChamberSimic Growth Chamber
- 1Temple of MysteryTemple of Mystery
- 1Thornwood FallsThornwood Falls
- 1Vineglimmer SnarlVineglimmer Snarl
- 1Yavimaya CoastYavimaya Coast
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
Hullbreaker Horror
Hullbreaker Horror
Inkwell Leviathan
Inkwell Leviathan
Junk Winder
Junk Winder
Kiora, Sovereign of the Deep
Kiora, Sovereign of the Deep
Koma, World-Eater
Koma, World-Eater
Llanowar Elves
Llanowar Elves
Murkfiend Liege
Murkfiend Liege
Nadir Kraken
Nadir Kraken
Sakashima of a Thousand Faces
Sakashima of a Thousand Faces
Sakura-Tribe Elder
Sakura-Tribe Elder
Scourge of Fleets
Scourge of Fleets
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
Stormsurge Kraken
Stormsurge Kraken
Stormtide Leviathan
Stormtide Leviathan
Summon: Leviathan
Summon: Leviathan
Sword Coast Serpent
Sword Coast Serpent
Tatyova, Benthic Druid
Tatyova, Benthic Druid
The Unagi of Kyoshi Island
The Unagi of Kyoshi Island
Tromokratis
Tromokratis
Xolatoyac, the Smiling Flood
Xolatoyac, the Smiling Flood
Instants (11)
Arcane Denial
Arcane Denial
Beast Within
Beast Within
Counterspell
Counterspell
Cyclonic Rift
Cyclonic Rift
Double Major
Double Major
Growth Spiral
Growth Spiral
Heroic Intervention
Heroic Intervention
Negate
Negate
Return of the Wildspeaker
Return of the Wildspeaker
Second Harvest
Second Harvest
Simic Charm
Simic Charm
Sorceries (10)
Cultivate
Cultivate
Explore
Explore
Farseek
Farseek
Irenicus's Vile Duplication
Irenicus's Vile Duplication
Kodama's Reach
Kodama's Reach
Nature's Lore
Nature's Lore
Rampant Growth
Rampant Growth
Skyshroud Claim
Skyshroud Claim
Three Visits
Three Visits
Whelming Wave
Whelming Wave
Artifacts (7)
Arcane Signet
Arcane Signet
Helm of the Host
Helm of the Host
Lightning Greaves
Lightning Greaves
Simic Signet
Simic Signet
Sol Ring
Sol Ring
Swiftfoot Boots
Swiftfoot Boots
Thought Vessel
Thought Vessel
Enchantments (8)
Doubling Season
Doubling Season
Elemental Bond
Elemental Bond
Garruk's Uprising
Garruk's Uprising
Ominous Seas
Ominous Seas
Parallel Lives
Parallel Lives
Quest for Ula's Temple
Quest for Ula's Temple
Rhystic Study
Rhystic Study
Tribute to the World Tree
Tribute to the World Tree
Planeswalkers (1)
Kiora, the Crashing Wave
Kiora, the Crashing Wave
Lands (14)
Barkchannel Pathway
Barkchannel Pathway
Breeding Pool
Breeding Pool
Command Tower
Command Tower
Dreamroot Cascade
Dreamroot Cascade
Flooded Grove
Flooded Grove
Hinterland Harbor
Hinterland Harbor
Mosswort Bridge
Mosswort Bridge
Rejuvenating Springs
Rejuvenating Springs
Reliquary Tower
Reliquary Tower
Simic Growth Chamber
Simic Growth Chamber
Temple of Mystery
Temple of Mystery
Thornwood Falls
Thornwood Falls
Vineglimmer Snarl
Vineglimmer Snarl
Yavimaya Coast
Yavimaya Coast
Basics (2)
Forest
10 Forest
Island
11 Island