This page includes only decks with user-set brackets. Auto-detected brackets are not included.
Average Deck for Koma, Cosmos Serpent - Core Ramp
Alternate Names:
The Monstrous SerpentThe Monstrous Serpent
Koma, Cosmos Serpent
Rank #296
10decks
Nov 13, 2025
How To Play Sea Creatures Differently In Commander
Sea creatures in Magic are basically as old as the game itself, but they've changed significantly in that time.
Aug 6, 2025
Can You Build Simic in Commander Without... Going Simic?
Can you go Simic without doing the Simic stuff that everyone dreads? Yes you can! Arnaud is here with some uncanny Commander deck ideas.
Average Decklist
- 1 Koma, Cosmos SerpentKoma, Cosmos Serpent
- 1 Adrix and Nev, TwincastersAdrix and Nev, Twincasters
- 1 Aesi, Tyrant of Gyre StraitAesi, Tyrant of Gyre Strait
- 1 Arcane SignetArcane Signet
- 1 Archetype of ImaginationArchetype of Imagination
- 1 Arixmethes, Slumbering IsleArixmethes, Slumbering Isle
- 1 Barkchannel PathwayBarkchannel Pathway
- 1 Beast WithinBeast Within
- 1 Botanical SanctumBotanical Sanctum
- 1 Breeding PoolBreeding Pool
- 1 Combine ChrysalisCombine Chrysalis
- 1 Command TowerCommand Tower
- 1 CounterspellCounterspell
- 1 CultivateCultivate
- 1 Double MajorDouble Major
- 1 Dreamroot CascadeDreamroot Cascade
- 1 Elemental BondElemental Bond
- 1 Elvish MysticElvish Mystic
- 1 Enduring VitalityEnduring Vitality
- 1 Esix, Fractal BloomEsix, Fractal Bloom
- 1 ExploreExplore
- 1 FarseekFarseek
- 10 ForestForest
- 1 Garruk's PackleaderGarruk's Packleader
- 1 Garruk's UprisingGarruk's Uprising
- 1 Garruk, Primal HunterGarruk, Primal Hunter
- 1 Growing Rites of ItlimocGrowing Rites of Itlimoc
- 1 Growth SpiralGrowth Spiral
- 1 Helm of the HostHelm of the Host
- 1 Heroic InterventionHeroic Intervention
- 1 Hinterland HarborHinterland Harbor
- 1 Hullbreaker HorrorHullbreaker Horror
- 1 Impostor SyndromeImpostor Syndrome
- 1 Irenicus's Vile DuplicationIrenicus's Vile Duplication
- 10 IslandIsland
- 1 Junk WinderJunk Winder
- 1 Kindred DiscoveryKindred Discovery
- 1 Kodama's ReachKodama's Reach
- 1 Koma, World-EaterKoma, World-Eater
- 1 Krosan GripKrosan Grip
- 1 Llanowar ElvesLlanowar Elves
- 1 Murkfiend LiegeMurkfiend Liege
- 1 Mystic RemoraMystic Remora
- 1 Nadir KrakenNadir Kraken
- 1 Nature's LoreNature's Lore
- 1 NegateNegate
- 1 OctomancerOctomancer
- 1 Overwhelming StampedeOverwhelming Stampede
- 1 Parallel LivesParallel Lives
- 1 PongifyPongify
- 1 Quantum MisalignmentQuantum Misalignment
- 1 Rampant GrowthRampant Growth
- 1 Rapid HybridizationRapid Hybridization
- 1 Reliquary TowerReliquary Tower
- 1 Return of the WildspeakerReturn of the Wildspeaker
- 1 Rimewood FallsRimewood Falls
- 1 Roaming ThroneRoaming Throne
- 1 Sakashima of a Thousand FacesSakashima of a Thousand Faces
- 1 Sakashima the ImpostorSakashima the Impostor
- 1 Second HarvestSecond Harvest
- 1 Serpent of Yawning DepthsSerpent of Yawning Depths
- 1 Simic CharmSimic Charm
- 1 Simic SignetSimic Signet
- 1 Skyshroud ClaimSkyshroud Claim
- 1 Snow-Covered ForestSnow-Covered Forest
- 1 Snow-Covered IslandSnow-Covered Island
- 1 Sol RingSol Ring
- 1 Spark DoubleSpark Double
- 1 Spawning KrakenSpawning Kraken
- 1 Swiftfoot BootsSwiftfoot Boots
- 1 Tangled IsletTangled Islet
- 1 Tatyova, Benthic DruidTatyova, Benthic Druid
- 1 Temple of the False GodTemple of the False God
- 1 Thought VesselThought Vessel
- 1 Tribute to the World TreeTribute to the World Tree
- 1 Troyan, Gutsy ExplorerTroyan, Gutsy Explorer
- 1 Vineglimmer SnarlVineglimmer Snarl
- 1 Waterlogged GroveWaterlogged Grove
- 1 Whelming WaveWhelming Wave
- 1 Wilderness ReclamationWilderness Reclamation
- 1 Xolatoyac, the Smiling FloodXolatoyac, the Smiling Flood
- 1 Yavimaya CoastYavimaya Coast
Adrix and Nev, Twincasters
Adrix and Nev, Twincasters
Aesi, Tyrant of Gyre Strait
Aesi, Tyrant of Gyre Strait
Archetype of Imagination
Archetype of Imagination
Arixmethes, Slumbering Isle
Arixmethes, Slumbering Isle
Elvish Mystic
Elvish Mystic
Enduring Vitality
Enduring Vitality
Esix, Fractal Bloom
Esix, Fractal Bloom
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
Roaming Throne
Roaming Throne
Sakashima of a Thousand Faces
Sakashima of a Thousand Faces
Sakashima the Impostor
Sakashima the Impostor
Serpent of Yawning Depths
Serpent of Yawning Depths
Spark Double
Spark Double
Spawning Kraken
Spawning Kraken
Tatyova, Benthic Druid
Tatyova, Benthic Druid
Troyan, Gutsy Explorer
Troyan, Gutsy Explorer
Xolatoyac, the Smiling Flood
Xolatoyac, the Smiling Flood
Instants (12)
Beast Within
Beast Within
Counterspell
Counterspell
Double Major
Double Major
Growth Spiral
Growth Spiral
Heroic Intervention
Heroic Intervention
Krosan Grip
Krosan Grip
Negate
Negate
Pongify
Pongify
Rapid Hybridization
Rapid Hybridization
Return of the Wildspeaker
Return of the Wildspeaker
Second Harvest
Second Harvest
Simic Charm
Simic Charm
Sorceries (11)
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
Overwhelming Stampede
Overwhelming Stampede
Quantum Misalignment
Quantum Misalignment
Rampant Growth
Rampant Growth
Skyshroud Claim
Skyshroud Claim
Whelming Wave
Whelming Wave
Artifacts (7)
Arcane Signet
Arcane Signet
Combine Chrysalis
Combine Chrysalis
Helm of the Host
Helm of the Host
Simic Signet
Simic Signet
Sol Ring
Sol Ring
Swiftfoot Boots
Swiftfoot Boots
Thought Vessel
Thought Vessel
Enchantments (9)
Elemental Bond
Elemental Bond
Garruk's Uprising
Garruk's Uprising
Growing Rites of Itlimoc
Growing Rites of Itlimoc
Impostor Syndrome
Impostor Syndrome
Kindred Discovery
Kindred Discovery
Mystic Remora
Mystic Remora
Parallel Lives
Parallel Lives
Tribute to the World Tree
Tribute to the World Tree
Wilderness Reclamation
Wilderness Reclamation
Planeswalkers (1)
Garruk, Primal Hunter
Garruk, Primal Hunter
Lands (13)
Barkchannel Pathway
Barkchannel Pathway
Botanical Sanctum
Botanical Sanctum
Breeding Pool
Breeding Pool
Command Tower
Command Tower
Dreamroot Cascade
Dreamroot Cascade
Hinterland Harbor
Hinterland Harbor
Reliquary Tower
Reliquary Tower
Rimewood Falls
Rimewood Falls
Tangled Islet
Tangled Islet
Temple of the False God
Temple of the False God
Vineglimmer Snarl
Vineglimmer Snarl
Waterlogged Grove
Waterlogged Grove
Yavimaya Coast
Yavimaya Coast
Basics (4)
Forest
10 Forests
Island
10 Islands
Snow-Covered Forest
1 Snow-Covered Forest
Snow-Covered Island
1 Snow-Covered Island