Average Deck for Koma, Cosmos Serpent - Lands Matter

Alternate Names:

The Monstrous SerpentThe Monstrous Serpent

Koma, Cosmos Serpent

Rank #298

36decks

As Commander As Card Average Deck Decks

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Budget

Any $$$$

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Aug 6, 2025

Arnaud Gompertz

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

Koma, Cosmos Serpent

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Playtest on Archidekt

- 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 Arixmethes, Slumbering IsleArixmethes, Slumbering Isle
- 1 Avenger of ZendikarAvenger of Zendikar
- 1 Azusa, Lost but SeekingAzusa, Lost but Seeking
- 1 Barkchannel PathwayBarkchannel Pathway
- 1 Beast WithinBeast Within
- 1 Birds of ParadiseBirds of Paradise
- 1 Blighted WoodlandBlighted Woodland
- 1 Breeding PoolBreeding Pool
- 1 Combine ChrysalisCombine Chrysalis
- 1 Command TowerCommand Tower
- 1 CounterspellCounterspell
- 1 Craterhoof BehemothCraterhoof Behemoth
- 1 Cryptolith RiteCryptolith Rite
- 1 CultivateCultivate
- 1 Cyclonic RiftCyclonic Rift
- 1 Double MajorDouble Major
- 1 Doubling SeasonDoubling Season
- 1 Dreamroot CascadeDreamroot Cascade
- 1 Elemental BondElemental Bond
- 1 Esix, Fractal BloomEsix, Fractal Bloom
- 1 Evolving WildsEvolving Wilds
- 1 ExplorationExploration
- 1 FarseekFarseek
- 1 Flooded GroveFlooded Grove
- 9 ForestForest
- 1 Growth SpiralGrowth Spiral
- 1 HarrowHarrow
- 1 Hedge MazeHedge Maze
- 1 Helm of the HostHelm of the Host
- 1 Heroic InterventionHeroic Intervention
- 1 Hinterland HarborHinterland Harbor
- 1 Hullbreaker HorrorHullbreaker Horror
- 1 Irenicus's Vile DuplicationIrenicus's Vile Duplication
- 9 IslandIsland
- 1 Junk WinderJunk Winder
- 1 Kindred DiscoveryKindred Discovery
- 1 Kodama's ReachKodama's Reach
- 1 Koma, World-EaterKoma, World-Eater
- 1 Lightning GreavesLightning Greaves
- 1 Mana DrainMana Drain
- 1 Misty RainforestMisty Rainforest
- 1 Murkfiend LiegeMurkfiend Liege
- 1 Mystic RemoraMystic Remora
- 1 Mystical TutorMystical Tutor
- 1 Nature's LoreNature's Lore
- 1 NegateNegate
- 1 Oko, Thief of CrownsOko, Thief of Crowns
- 1 Parallel LivesParallel Lives
- 1 PongifyPongify
- 1 Rampaging BalothsRampaging Baloths
- 1 Rampant GrowthRampant Growth
- 1 Rejuvenating SpringsRejuvenating Springs
- 1 Reliquary TowerReliquary Tower
- 1 Rite of ReplicationRite of Replication
- 1 Sakashima of a Thousand FacesSakashima of a Thousand Faces
- 1 Sakashima the ImpostorSakashima the Impostor
- 1 Sakura-Tribe ElderSakura-Tribe Elder
- 1 Scute SwarmScute Swarm
- 1 Seedborn MuseSeedborn Muse
- 1 Serpent of Yawning DepthsSerpent of Yawning Depths
- 1 Simic Growth ChamberSimic Growth Chamber
- 1 Skyshroud ClaimSkyshroud Claim
- 1 Slinn Voda, the Rising DeepSlinn Voda, the Rising Deep
- 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 Tatyova, Benthic DruidTatyova, Benthic Druid
- 1 Temple of MysteryTemple of Mystery
- 1 Terramorphic ExpanseTerramorphic Expanse
- 1 Three VisitsThree Visits
- 1 Tireless ProvisionerTireless Provisioner
- 1 Tribute to the World TreeTribute to the World Tree
- 1 Vineglimmer SnarlVineglimmer Snarl
- 1 Whelming WaveWhelming Wave
- 1 Willowrush VergeWillowrush Verge
- 1 Worldly TutorWorldly Tutor
- 1 Yavimaya CoastYavimaya Coast

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Filters Card Filters

Adrix and Nev, Twincasters

Aesi, Tyrant of Gyre Strait

Arixmethes, Slumbering Isle

Avenger of Zendikar

Azusa, Lost but Seeking

Birds of Paradise

Craterhoof Behemoth

Esix, Fractal Bloom

Hullbreaker Horror

Junk Winder

Koma, World-Eater

Murkfiend Liege

Rampaging Baloths

Sakashima of a Thousand Faces

Sakashima the Impostor

Sakura-Tribe Elder

Scute Swarm

Seedborn Muse

Serpent of Yawning Depths

Slinn Voda, the Rising Deep

Spark Double

Spawning Kraken

Tatyova, Benthic Druid

Tireless Provisioner

Instants (12)

Beast Within

Counterspell

Cyclonic Rift

Double Major

Growth Spiral

Harrow

Heroic Intervention

Mana Drain

Mystical Tutor

Negate

Pongify

Worldly Tutor

Sorceries (10)

Cultivate

Farseek

Irenicus's Vile Duplication

Kodama's Reach

Nature's Lore

Rampant Growth

Rite of Replication

Skyshroud Claim

Three Visits

Whelming Wave

Artifacts (6)

Arcane Signet

Combine Chrysalis

Helm of the Host

Lightning Greaves

Sol Ring

Swiftfoot Boots

Enchantments (8)

Cryptolith Rite

Doubling Season

Elemental Bond

Exploration

Kindred Discovery

Mystic Remora

Parallel Lives

Tribute to the World Tree

Planeswalkers (1)

Oko, Thief of Crowns

Lands (18)

Barkchannel Pathway

Blighted Woodland

Breeding Pool

Command Tower

Dreamroot Cascade

Evolving Wilds

Flooded Grove

Hedge Maze

Hinterland Harbor

Misty Rainforest

Rejuvenating Springs

Reliquary Tower

Simic Growth Chamber

Temple of Mystery

Terramorphic Expanse

Vineglimmer Snarl

Willowrush Verge

Yavimaya Coast

Basics (4)

Forest

9 Forests

Island

9 Islands

Snow-Covered Forest

1 Snow-Covered Forest

Snow-Covered Island

1 Snow-Covered Island