Average Deck for Koma, Cosmos Serpent - Budget Sea Creatures
Alternate Names:
The Monstrous SerpentThe Monstrous Serpent
Koma, Cosmos Serpent
Rank #322
12decks
Mar 12, 2026
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Average Decklist
- 1 Koma, Cosmos SerpentKoma, Cosmos Serpent
- 1 Arcane SignetArcane Signet
- 1 Arixmethes, Slumbering IsleArixmethes, Slumbering Isle
- 1 Beast WithinBeast Within
- 1 Brinelin, the Moon KrakenBrinelin, the Moon Kraken
- 1 Charix, the Raging IsleCharix, the Raging Isle
- 1 Command TowerCommand Tower
- 1 Commander's SphereCommander's Sphere
- 1 CounterspellCounterspell
- 1 Crush of TentaclesCrush of Tentacles
- 1 CultivateCultivate
- 1 Deep-Sea KrakenDeep-Sea Kraken
- 1 Double MajorDouble Major
- 1 Eureka MomentEureka Moment
- 1 Evolving WildsEvolving Wilds
- 1 Exotic OrchardExotic Orchard
- 1 ExploreExplore
- 13 ForestForest
- 1 Garruk's UprisingGarruk's Uprising
- 1 Glacier GodmawGlacier Godmaw
- 1 Growth SpiralGrowth Spiral
- 1 HarmonizeHarmonize
- 1 HarrowHarrow
- 1 Heritage ReclamationHeritage Reclamation
- 1 Hullbreaker HorrorHullbreaker Horror
- 1 Iceridge SerpentIceridge Serpent
- 1 Inkwell LeviathanInkwell Leviathan
- 13 IslandIsland
- 1 Junk WinderJunk Winder
- 1 Kefnet's MonumentKefnet's Monument
- 1 Kiora, Behemoth BeckonerKiora, Behemoth Beckoner
- 1 Kiora, Sovereign of the DeepKiora, Sovereign of the Deep
- 1 Kodama's ReachKodama's Reach
- 1 Koma, World-EaterKoma, World-Eater
- 1 Mesmerizing BenthidMesmerizing Benthid
- 1 Myriad LandscapeMyriad Landscape
- 1 Nadir KrakenNadir Kraken
- 1 NegateNegate
- 1 OctoprophetOctoprophet
- 1 Ominous SeasOminous Seas
- 1 Primal EmpathyPrimal Empathy
- 1 Rampant GrowthRampant Growth
- 1 Reality ShiftReality Shift
- 1 Reef WormReef Worm
- 1 Reservoir KrakenReservoir Kraken
- 1 Retreat to CoralhelmRetreat to Coralhelm
- 1 Return of the WildspeakerReturn of the Wildspeaker
- 1 Scourge of FleetsScourge of Fleets
- 1 Search for TomorrowSearch for Tomorrow
- 1 Serpent of Yawning DepthsSerpent of Yawning Depths
- 1 SharktocrabSharktocrab
- 1 Shipbreaker KrakenShipbreaker Kraken
- 1 Simic CharmSimic Charm
- 1 Simic Growth ChamberSimic Growth Chamber
- 1 Simic SignetSimic Signet
- 1 Simic Sky SwallowerSimic Sky Swallower
- 1 Slinn Voda, the Rising DeepSlinn Voda, the Rising Deep
- 1 Sol RingSol Ring
- 1 Spawning KrakenSpawning Kraken
- 1 StarwinderStarwinder
- 1 Stormsurge KrakenStormsurge Kraken
- 1 Stormtide LeviathanStormtide Leviathan
- 1 Summon: LeviathanSummon: Leviathan
- 1 Swiftfoot BootsSwiftfoot Boots
- 1 Sword Coast SerpentSword Coast Serpent
- 1 Tangled IsletTangled Islet
- 1 Temple of MysteryTemple of Mystery
- 1 Terramorphic ExpanseTerramorphic Expanse
- 1 Thornwood FallsThornwood Falls
- 1 Tolarian KrakenTolarian Kraken
- 1 TromokratisTromokratis
- 1 Urban EvolutionUrban Evolution
- 1 Verazol, the Split CurrentVerazol, the Split Current
- 1 Whelming WaveWhelming Wave
- 1 Woodland StreamWoodland Stream
- 1 Xolatoyac, the Smiling FloodXolatoyac, the Smiling Flood
Arixmethes, Slumbering Isle
Arixmethes, Slumbering Isle
Brinelin, the Moon Kraken
Brinelin, the Moon Kraken
Charix, the Raging Isle
Charix, the Raging Isle
Deep-Sea Kraken
Deep-Sea Kraken
Glacier Godmaw
Glacier Godmaw
Hullbreaker Horror
Hullbreaker Horror
Iceridge Serpent
Iceridge Serpent
Inkwell Leviathan
Inkwell Leviathan
Junk Winder
Junk Winder
Kiora, Sovereign of the Deep
Kiora, Sovereign of the Deep
Koma, World-Eater
Koma, World-Eater
Mesmerizing Benthid
Mesmerizing Benthid
Nadir Kraken
Nadir Kraken
Octoprophet
Octoprophet
Reef Worm
Reef Worm
Reservoir Kraken
Reservoir Kraken
Scourge of Fleets
Scourge of Fleets
Serpent of Yawning Depths
Serpent of Yawning Depths
Sharktocrab
Sharktocrab
Shipbreaker Kraken
Shipbreaker Kraken
Simic Sky Swallower
Simic Sky Swallower
Slinn Voda, the Rising Deep
Slinn Voda, the Rising Deep
Spawning Kraken
Spawning Kraken
Starwinder
Starwinder
Stormsurge Kraken
Stormsurge Kraken
Stormtide Leviathan
Stormtide Leviathan
Summon: Leviathan
Summon: Leviathan
Sword Coast Serpent
Sword Coast Serpent
Tolarian Kraken
Tolarian Kraken
Tromokratis
Tromokratis
Verazol, the Split Current
Verazol, the Split Current
Xolatoyac, the Smiling Flood
Xolatoyac, the Smiling Flood
Instants (11)
Beast Within
Beast Within
Counterspell
Counterspell
Double Major
Double Major
Eureka Moment
Eureka Moment
Growth Spiral
Growth Spiral
Harrow
Harrow
Heritage Reclamation
Heritage Reclamation
Negate
Negate
Reality Shift
Reality Shift
Return of the Wildspeaker
Return of the Wildspeaker
Simic Charm
Simic Charm
Sorceries (9)
Crush of Tentacles
Crush of Tentacles
Cultivate
Cultivate
Explore
Explore
Harmonize
Harmonize
Kodama's Reach
Kodama's Reach
Rampant Growth
Rampant Growth
Search for Tomorrow
Search for Tomorrow
Urban Evolution
Urban Evolution
Whelming Wave
Whelming Wave
Artifacts (6)
Arcane Signet
Arcane Signet
Commander's Sphere
Commander's Sphere
Kefnet's Monument
Kefnet's Monument
Simic Signet
Simic Signet
Sol Ring
Sol Ring
Swiftfoot Boots
Swiftfoot Boots
Enchantments (4)
Garruk's Uprising
Garruk's Uprising
Ominous Seas
Ominous Seas
Primal Empathy
Primal Empathy
Retreat to Coralhelm
Retreat to Coralhelm
Planeswalkers (1)
Kiora, Behemoth Beckoner
Kiora, Behemoth Beckoner
Lands (10)
Command Tower
Command Tower
Evolving Wilds
Evolving Wilds
Exotic Orchard
Exotic Orchard
Myriad Landscape
Myriad Landscape
Simic Growth Chamber
Simic Growth Chamber
Tangled Islet
Tangled Islet
Temple of Mystery
Temple of Mystery
Terramorphic Expanse
Terramorphic Expanse
Thornwood Falls
Thornwood Falls
Woodland Stream
Woodland Stream
Basics (2)
Forest
13 Forests
Island
13 Islands