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Average Deck for Koma, Cosmos Serpent - Expensive cEDH
Alternate Names:
The Monstrous SerpentThe Monstrous Serpent
Koma, Cosmos Serpent
Rank #328
2decks
Mar 12, 2026
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Average Decklist
- 1 Koma, Cosmos SerpentKoma, Cosmos Serpent
- 1 Academy RuinsAcademy Ruins
- 1 An Offer You Can't RefuseAn Offer You Can't Refuse
- 1 Ancient TombAncient Tomb
- 1 Arcane SignetArcane Signet
- 1 Archdruid's CharmArchdruid's Charm
- 1 Birds of ParadiseBirds of Paradise
- 1 Boseiju, Who EnduresBoseiju, Who Endures
- 1 Breeding PoolBreeding Pool
- 1 BurgeoningBurgeoning
- 1 Buster SwordBuster Sword
- 1 Carpet of FlowersCarpet of Flowers
- 1 Cavern of SoulsCavern of Souls
- 1 Chord of CallingChord of Calling
- 1 Chrome MoxChrome Mox
- 1 Command TowerCommand Tower
- 1 Commune with BeaversCommune with Beavers
- 1 Deceptive FrostkiteDeceptive Frostkite
- 1 Delighted HalflingDelighted Halfling
- 1 Destiny SpinnerDestiny Spinner
- 1 DispelDispel
- 1 Distant MelodyDistant Melody
- 1 Elemental BondElemental Bond
- 1 Elvish MysticElvish Mystic
- 1 Elvish Spirit GuideElvish Spirit Guide
- 1 Esix, Fractal BloomEsix, Fractal Bloom
- 1 Exotic OrchardExotic Orchard
- 1 Faerie MastermindFaerie Mastermind
- 1 Fellwar StoneFellwar Stone
- 1 Finale of DevastationFinale of Devastation
- 1 Flooded StrandFlooded Strand
- 1 Force of NegationForce of Negation
- 1 Force of VigorForce of Vigor
- 1 Force of WillForce of Will
- 2 ForestForest
- 1 Gaea's CradleGaea's Cradle
- 1 Gemstone CavernsGemstone Caverns
- 1 Gilded DrakeGilded Drake
- 1 Gogo, Master of MimicryGogo, Master of Mimicry
- 1 Grim MonolithGrim Monolith
- 1 Hydroelectric SpecimenHydroelectric Specimen
- 3 IslandIsland
- 1 Isochron ScepterIsochron Scepter
- 1 Junk WinderJunk Winder
- 1 Lightning GreavesLightning Greaves
- 1 Llanowar ElvesLlanowar Elves
- 1 Mana ConfluenceMana Confluence
- 1 Mana DrainMana Drain
- 1 Mana VaultMana Vault
- 1 Minamo, School at Water's EdgeMinamo, School at Water's Edge
- 1 Mindbreak TrapMindbreak Trap
- 1 Misty RainforestMisty Rainforest
- 1 MockingbirdMockingbird
- 1 Mox DiamondMox Diamond
- 1 Mox OpalMox Opal
- 1 Mystic RemoraMystic Remora
- 1 NeoformNeoform
- 1 Omega, Heartless EvolutionOmega, Heartless Evolution
- 1 Otawara, Soaring CityOtawara, Soaring City
- 1 Pact of NegationPact of Negation
- 1 Parallel LivesParallel Lives
- 1 Polluted DeltaPolluted Delta
- 1 Prismatic VistaPrismatic Vista
- 1 Rejuvenating SpringsRejuvenating Springs
- 1 Rhystic StudyRhystic Study
- 1 Roaming ThroneRoaming Throne
- 1 Saryth, the Viper's FangSaryth, the Viper's Fang
- 1 Second HarvestSecond Harvest
- 1 Sink into StuporSink into Stupor
- 1 Sol RingSol Ring
- 1 Sphinx of the Second SunSphinx of the Second Sun
- 1 Steal EnchantmentSteal Enchantment
- 1 StifleStifle
- 1 Stubborn DenialStubborn Denial
- 1 Summon: LeviathanSummon: Leviathan
- 1 Summon: ValeforSummon: Valefor
- 1 Swan SongSwan Song
- 1 Sylvan LibrarySylvan Library
- 1 Talon Gates of MadaraTalon Gates of Madara
- 1 The One RingThe One Ring
- 1 Toil to RenownToil to Renown
- 1 Tribute to the World TreeTribute to the World Tree
- 1 Triumph of the HordesTriumph of the Hordes
- 1 Tropical IslandTropical Island
- 1 Utopia SprawlUtopia Sprawl
- 1 Verdant CatacombsVerdant Catacombs
- 1 VoidslimeVoidslime
- 1 Waterlogged GroveWaterlogged Grove
- 1 Whelming WaveWhelming Wave
- 1 WindfallWindfall
- 1 Windswept HeathWindswept Heath
- 1 Wooded FoothillsWooded Foothills
- 1 Xolatoyac, the Smiling FloodXolatoyac, the Smiling Flood
- 1 Yavimaya CoastYavimaya Coast
- 1 Yavimaya HollowYavimaya Hollow
- 1 Yavimaya, Cradle of GrowthYavimaya, Cradle of Growth
- 1 Zopandrel, Hunger DominusZopandrel, Hunger Dominus
Birds of Paradise
Birds of Paradise
Deceptive Frostkite
Deceptive Frostkite
Delighted Halfling
Delighted Halfling
Destiny Spinner
Destiny Spinner
Elvish Mystic
Elvish Mystic
Elvish Spirit Guide
Elvish Spirit Guide
Esix, Fractal Bloom
Esix, Fractal Bloom
Faerie Mastermind
Faerie Mastermind
Gilded Drake
Gilded Drake
Gogo, Master of Mimicry
Gogo, Master of Mimicry
Hydroelectric Specimen
Hydroelectric Specimen
Junk Winder
Junk Winder
Llanowar Elves
Llanowar Elves
Mockingbird
Mockingbird
Omega, Heartless Evolution
Omega, Heartless Evolution
Roaming Throne
Roaming Throne
Saryth, the Viper's Fang
Saryth, the Viper's Fang
Sphinx of the Second Sun
Sphinx of the Second Sun
Summon: Leviathan
Summon: Leviathan
Summon: Valefor
Summon: Valefor
Xolatoyac, the Smiling Flood
Xolatoyac, the Smiling Flood
Zopandrel, Hunger Dominus
Zopandrel, Hunger Dominus
Instants (16)
An Offer You Can't Refuse
An Offer You Can't Refuse
Archdruid's Charm
Archdruid's Charm
Chord of Calling
Chord of Calling
Dispel
Dispel
Force of Negation
Force of Negation
Force of Vigor
Force of Vigor
Force of Will
Force of Will
Mana Drain
Mana Drain
Mindbreak Trap
Mindbreak Trap
Pact of Negation
Pact of Negation
Second Harvest
Second Harvest
Sink into Stupor
Sink into Stupor
Stifle
Stifle
Stubborn Denial
Stubborn Denial
Swan Song
Swan Song
Voidslime
Voidslime
Sorceries (8)
Commune with Beavers
Commune with Beavers
Distant Melody
Distant Melody
Finale of Devastation
Finale of Devastation
Neoform
Neoform
Toil to Renown
Toil to Renown
Triumph of the Hordes
Triumph of the Hordes
Whelming Wave
Whelming Wave
Windfall
Windfall
Artifacts (12)
Arcane Signet
Arcane Signet
Buster Sword
Buster Sword
Chrome Mox
Chrome Mox
Fellwar Stone
Fellwar Stone
Grim Monolith
Grim Monolith
Isochron Scepter
Isochron Scepter
Lightning Greaves
Lightning Greaves
Mana Vault
Mana Vault
Mox Diamond
Mox Diamond
Mox Opal
Mox Opal
Sol Ring
Sol Ring
The One Ring
The One Ring
Enchantments (10)
Burgeoning
Burgeoning
Carpet of Flowers
Carpet of Flowers
Elemental Bond
Elemental Bond
Mystic Remora
Mystic Remora
Parallel Lives
Parallel Lives
Rhystic Study
Rhystic Study
Steal Enchantment
Steal Enchantment
Sylvan Library
Sylvan Library
Tribute to the World Tree
Tribute to the World Tree
Utopia Sprawl
Utopia Sprawl
Lands (26)
Academy Ruins
Academy Ruins
Ancient Tomb
Ancient Tomb
Boseiju, Who Endures
Boseiju, Who Endures
Breeding Pool
Breeding Pool
Cavern of Souls
Cavern of Souls
Command Tower
Command Tower
Exotic Orchard
Exotic Orchard
Flooded Strand
Flooded Strand
Gaea's Cradle
Gaea's Cradle
Gemstone Caverns
Gemstone Caverns
Mana Confluence
Mana Confluence
Minamo, School at Water's Edge
Minamo, School at Water's Edge
Misty Rainforest
Misty Rainforest
Otawara, Soaring City
Otawara, Soaring City
Polluted Delta
Polluted Delta
Prismatic Vista
Prismatic Vista
Rejuvenating Springs
Rejuvenating Springs
Talon Gates of Madara
Talon Gates of Madara
Tropical Island
Tropical Island
Verdant Catacombs
Verdant Catacombs
Waterlogged Grove
Waterlogged Grove
Windswept Heath
Windswept Heath
Wooded Foothills
Wooded Foothills
Yavimaya Coast
Yavimaya Coast
Yavimaya, Cradle of Growth
Yavimaya, Cradle of Growth
Yavimaya Hollow
Yavimaya Hollow
Basics (2)
Forest
2 Forests
Island
3 Islands