Koma, Cosmos Serpent (Commander) - cEDH

Koma, Cosmos Serpent
16 decks (0.000%) Rank #284
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Arnaud Gompertz
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.
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Sorceries
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Enchantments
Battles
Planeswalkers
Utility Lands
Mana Artifacts
Lands
Back to Top
Elemental Bond
81% of 16 decks +76% synergy
Tribute to the World Tree
75% of 16 decks +68% synergy
Mana Drain
81% of 16 decks +65% synergy
Adrix and Nev, Twincasters
69% of 16 decks +60% synergy
Parallel Lives
62% of 16 decks +56% synergy
Junk Winder
62% of 16 decks +56% synergy
Boseiju, Who Endures
75% of 16 decks +53% synergy
Sakashima of a Thousand Faces
56% of 16 decks +51% synergy
Whelming Wave
62% of 16 decks +51% synergy
Mystic Remora
62% of 16 decks +47% synergy
Top Cards
Birds of Paradise
69% of 16 decks +41% synergy
Kodama's Reach
56% of 16 decks +19% synergy
An Offer You Can't Refuse
56% of 16 decks +34% synergy
Swan Song
56% of 16 decks +37% synergy
Counterspell
56% of 16 decks +6% synergy
Growth Spiral
56% of 16 decks +12% synergy
Spark Double
56% of 16 decks +47% synergy
Nature's Lore
56% of 16 decks +26% synergy
Cultivate
56% of 16 decks +9% synergy
Finale of Devastation
50% of 16 decks +38% synergy
Game Changers
Rhystic Study
75% of 16 decks +52% synergy
Cyclonic Rift
75% of 16 decks +48% synergy
Fierce Guardianship
62% of 16 decks +45% synergy
Gaea's Cradle
56% of 16 decks +49% synergy
Ancient Tomb
56% of 16 decks +47% synergy
Force of Will
56% of 16 decks +46% synergy
Worldly Tutor
56% of 16 decks +40% synergy
The One Ring
50% of 16 decks +42% synergy
Mana Vault
44% of 16 decks +38% synergy
Seedborn Muse
44% of 16 decks +28% synergy
Creatures
Koma, World-Eater
47% of 15 decks +33% synergy
Roaming Throne
44% of 16 decks +36% synergy
Serpent of Yawning Depths
44% of 16 decks +37% synergy
Llanowar Elves
44% of 16 decks +16% synergy
Craterhoof Behemoth
44% of 16 decks +35% synergy
Sakura-Tribe Elder
44% of 16 decks +24% synergy
Elvish Mystic
44% of 16 decks +19% synergy
Eternal Witness
38% of 16 decks +16% synergy
Fyndhorn Elves
38% of 16 decks +21% synergy
Aesi, Tyrant of Gyre Strait
38% of 16 decks +21% synergy
Ohran Frostfang
38% of 16 decks +34% synergy
Enduring Vitality
33% of 15 decks +26% synergy
Murkfiend Liege
31% of 16 decks +16% synergy
Esix, Fractal Bloom
31% of 16 decks +27% synergy
Phyrexian Metamorph
31% of 16 decks +23% synergy
Sakashima the Impostor
31% of 16 decks +29% synergy
Arixmethes, Slumbering Isle
31% of 16 decks +18% synergy
Spawning Kraken
31% of 16 decks +24% synergy
Garruk's Packleader
25% of 16 decks +23% synergy
Kinnan, Bonder Prodigy
25% of 16 decks +22% synergy
Endurance
25% of 16 decks +20% synergy
Delighted Halfling
25% of 16 decks +14% synergy
Summon: Valefor
20% of 5 decks +20% synergy
Volatile Stormdrake
20% of 15 decks +17% synergy
Omega, Heartless Evolution
20% of 5 decks +19% synergy
Gogo, Master of Mimicry
20% of 5 decks +19% synergy
Summon: Leviathan
20% of 5 decks +13% synergy
Tatyova, Benthic Druid
19% of 16 decks -13% synergy
Consecrated Sphinx
19% of 16 decks +10% synergy
Slinn Voda, the Rising Deep
19% of 16 decks +12% synergy
Archetype of Imagination
19% of 16 decks +14% synergy
Hullbreaker Horror
19% of 16 decks +1% synergy
Selvala, Heart of the Wilds
19% of 16 decks +16% synergy
Somberwald Sage
19% of 16 decks +17% synergy
Mockingbird
13% of 15 decks +11% synergy
Octomancer
13% of 15 decks +9% synergy
Pollywog Prodigy
13% of 15 decks +6% synergy
Peregrine Drake
12% of 16 decks +8% synergy
Circle of Dreams Druid
12% of 16 decks +10% synergy
Rampaging Baloths
12% of 16 decks -5% synergy
Elvish Spirit Guide
12% of 16 decks +8% synergy
Progenitor Mimic
12% of 16 decks +8% synergy
Scute Swarm
12% of 16 decks -9% synergy
Clever Impersonator
12% of 16 decks +8% synergy
Collector Ouphe
12% of 16 decks +11% synergy
Boreal Druid
12% of 16 decks +11% synergy
Gilded Drake
12% of 16 decks +10% synergy
Faerie Mastermind
12% of 16 decks +8% synergy
Curiosity Crafter
12% of 16 decks +9% synergy
Deceptive Frostkite
12% of 8 decks +12% synergy
Instants
Beast Within
50% of 16 decks -1% synergy
Force of Negation
50% of 16 decks +41% synergy
Heroic Intervention
50% of 16 decks +20% synergy
Negate
44% of 16 decks +17% synergy
Second Harvest
44% of 16 decks +37% synergy
Double Major
38% of 16 decks +29% synergy
Pact of Negation
38% of 16 decks +30% synergy
Mindbreak Trap
31% of 16 decks +27% synergy
Chord of Calling
31% of 16 decks +24% synergy
Flusterstorm
31% of 16 decks +25% synergy
Mystical Tutor
31% of 16 decks +21% synergy
Strix Serenade
27% of 15 decks +23% synergy
Return of the Wildspeaker
25% of 16 decks +14% synergy
Mystic Reflection
25% of 16 decks +22% synergy
Pongify
25% of 16 decks +0% synergy
Force of Vigor
25% of 16 decks +20% synergy
Archdruid's Charm
20% of 15 decks +14% synergy
Mental Misstep
19% of 16 decks +13% synergy
Veil of Summer
19% of 16 decks +13% synergy
Crop Rotation
19% of 16 decks +5% synergy
Nature's Claim
19% of 16 decks +8% synergy
Miscast
19% of 16 decks +17% synergy
Rapid Hybridization
19% of 16 decks -8% synergy
Trickbind
19% of 16 decks +18% synergy
Sink into Stupor
13% of 15 decks +2% synergy
Legolas's Quick Reflexes
12% of 16 decks +10% synergy
Entish Restoration
12% of 16 decks +3% synergy
Resculpt
12% of 16 decks +6% synergy
Tale's End
12% of 16 decks +12% synergy
Arcane Denial
12% of 16 decks -10% synergy
Stifle
12% of 16 decks +12% synergy
Snakeskin Veil
12% of 16 decks +7% synergy
Krosan Grip
12% of 16 decks +4% synergy
Misdirection
12% of 16 decks +11% synergy
Noxious Revival
12% of 16 decks +6% synergy
Planar Genesis
7% of 15 decks -4% synergy
Muddle the Mixture
6% of 16 decks +2% synergy
Eureka Moment
6% of 16 decks -5% synergy
Life Goes On
6% of 16 decks +6% synergy
Decisive Denial
6% of 16 decks +1% synergy
Displace
6% of 16 decks +4% synergy
Brainstorm
6% of 16 decks -8% synergy
Stubborn Denial
6% of 16 decks +4% synergy
Defabricate
6% of 16 decks +6% synergy
Dispel
6% of 16 decks +1% synergy
Submerge
6% of 16 decks +6% synergy
Ghostly Flicker
6% of 16 decks -0% synergy
Rewind
6% of 16 decks +3% synergy
Naturalize
6% of 16 decks +4% synergy
Annul
6% of 16 decks +6% synergy
Sorceries
Irenicus's Vile Duplication
50% of 16 decks +44% synergy
Farseek
50% of 16 decks +26% synergy
Rampant Growth
50% of 16 decks +9% synergy
Three Visits
38% of 16 decks +15% synergy
Skyshroud Claim
38% of 16 decks +28% synergy
Quantum Misalignment
31% of 16 decks +28% synergy
Commune with Beavers
20% of 5 decks +20% synergy
Natural Order
19% of 16 decks +17% synergy
Fabricate
19% of 16 decks +12% synergy
Explore
19% of 16 decks -2% synergy
Curse of the Swine
12% of 16 decks +1% synergy
Green Sun's Zenith
12% of 16 decks +4% synergy
Triumph of the Hordes
12% of 16 decks +9% synergy
Overwhelming Stampede
12% of 16 decks +0% synergy
Rite of Replication
12% of 16 decks +5% synergy
Preposterous Proportions
7% of 15 decks +5% synergy
Doppelgang
7% of 15 decks +0% synergy
Overrun
6% of 16 decks +4% synergy
Courage in Crisis
6% of 16 decks +6% synergy
Neoform
6% of 16 decks +2% synergy
Mind Sculpt
6% of 16 decks +6% synergy
Search for Tomorrow
6% of 16 decks +1% synergy
Leyline Invocation
6% of 16 decks +6% synergy
Expropriate
6% of 16 decks +5% synergy
Preordain
6% of 16 decks -2% synergy
Urban Evolution
6% of 16 decks -4% synergy
Toil to Renown
6% of 16 decks +6% synergy
Reclaim the Wastes
6% of 16 decks +6% synergy
Bala Ged Recovery
6% of 16 decks -4% synergy
Migration Path
6% of 16 decks +3% synergy
Windfall
6% of 16 decks +2% synergy
Mobilize
6% of 16 decks +6% synergy
Vastwood Surge
6% of 16 decks +5% synergy
Nylea's Intervention
6% of 16 decks +5% synergy
Fractal Summoning
6% of 16 decks +6% synergy
Solve the Equation
6% of 16 decks +4% synergy
Eldritch Evolution
6% of 16 decks +3% synergy
Sylvan Tutor
6% of 16 decks +5% synergy
Rishkar's Expertise
6% of 16 decks -2% synergy
Repudiate // Replicate
6% of 16 decks +4% synergy
Distant Melody
6% of 16 decks +3% synergy
Serpentine Curve
6% of 16 decks +6% synergy
Genesis Wave
6% of 16 decks +2% synergy
Sylvan Scrying
6% of 16 decks +1% synergy
Utility Artifacts
Lightning Greaves
50% of 16 decks +28% synergy
Helm of the Host
50% of 16 decks +45% synergy
Swiftfoot Boots
31% of 16 decks +5% synergy
Buster Sword
20% of 5 decks +20% synergy
Eldrazi Monument
19% of 16 decks +18% synergy
Winter Moon
13% of 15 decks +13% synergy
Winter Orb
12% of 16 decks +12% synergy
Null Rod
12% of 16 decks +12% synergy
Idol of Oblivion
12% of 16 decks +9% synergy
Mirror Box
12% of 16 decks +9% synergy
Tangle Wire
12% of 16 decks +12% synergy
Isochron Scepter
12% of 16 decks +10% synergy
Static Orb
12% of 16 decks +12% synergy
Coat of Arms
12% of 16 decks +11% synergy
Grafdigger's Cage
12% of 16 decks +12% synergy
The Great Henge
12% of 16 decks +4% synergy
Combine Chrysalis
12% of 16 decks +8% synergy
Staff of Domination
12% of 16 decks +11% synergy
Weathered Runestone
6% of 16 decks +6% synergy
Phyrexian Altar
6% of 16 decks +6% synergy
Torpor Orb
6% of 16 decks +6% synergy
Thorn of Amethyst
6% of 16 decks +6% synergy
Skullclamp
6% of 16 decks +5% synergy
Monster Manual
6% of 16 decks +4% synergy
Commander's Plate
6% of 16 decks +6% synergy
Bident of Thassa
6% of 16 decks -1% synergy
Smokestack
6% of 16 decks +6% synergy
Symmetry Matrix
6% of 16 decks +6% synergy
Trinisphere
6% of 16 decks +6% synergy
Winged Boots
6% of 16 decks +5% synergy
Karn's Sylex
6% of 16 decks +6% synergy
Birthing Pod
6% of 16 decks +5% synergy
Damping Sphere
6% of 16 decks +6% synergy
Enchantments
Kindred Discovery
44% of 16 decks +33% synergy
Doubling Season
44% of 16 decks +34% synergy
Sylvan Library
44% of 16 decks +34% synergy
Exploration
25% of 16 decks +11% synergy
Unnatural Growth
19% of 16 decks +16% synergy
Growing Rites of Itlimoc
19% of 16 decks +13% synergy
Verity Circle
19% of 16 decks +18% synergy
Wilderness Reclamation
19% of 16 decks +10% synergy
Primal Vigor
19% of 16 decks +15% synergy
Freed from the Real
12% of 16 decks +8% synergy
Utopia Sprawl
12% of 16 decks +6% synergy
Back to Basics
12% of 16 decks +12% synergy
Burgeoning
12% of 16 decks +5% synergy
Defense of the Heart
12% of 16 decks +10% synergy
Primal Empathy
12% of 16 decks +10% synergy
Carpet of Flowers
12% of 16 decks +10% synergy
Garruk's Uprising
12% of 16 decks -3% synergy
Steal Enchantment
12% of 16 decks +12% synergy
Wild Growth
12% of 16 decks +4% synergy
Opposition
12% of 16 decks +12% synergy
Paradox Haze
12% of 16 decks +12% synergy
Mystic Subdual
12% of 16 decks +12% synergy
Unstoppable Plan
8% of 12 decks +6% synergy
Amphibian Downpour
7% of 15 decks +2% synergy
Mirror Room // Fractured Realm
7% of 15 decks +5% synergy
Counterbalance
6% of 16 decks +6% synergy
Pattern of Rebirth
6% of 16 decks +6% synergy
In the Eye of Chaos
6% of 16 decks +6% synergy
Nature's Will
6% of 16 decks +5% synergy
Leyline of Anticipation
6% of 16 decks +2% synergy
Cryptolith Rite
6% of 16 decks +3% synergy
Leyline of Abundance
6% of 16 decks +4% synergy
Beastmaster Ascension
6% of 16 decks +3% synergy
Root Maze
6% of 16 decks +6% synergy
Frozen Aether
6% of 16 decks +6% synergy
Elven Chorus
6% of 16 decks +2% synergy
Ominous Seas
6% of 16 decks +2% synergy
Cream of the Crop
6% of 16 decks +6% synergy
Bubble Snare
6% of 16 decks +6% synergy
Reflections of Littjara
6% of 16 decks -2% synergy
Arcane Laboratory
6% of 16 decks +6% synergy
Roost of Drakes
6% of 16 decks +6% synergy
Founding the Third Path
6% of 16 decks +6% synergy
Survival of the Fittest
6% of 16 decks +6% synergy
Arachnoform
6% of 16 decks +6% synergy
Earthcraft
6% of 16 decks +6% synergy
Energy Flux
6% of 16 decks +6% synergy
Song of the Dryads
6% of 16 decks +5% synergy
Power Artifact
6% of 16 decks +6% synergy
In Search of Greatness
6% of 16 decks +4% synergy
Battles
Invasion of Ikoria
6% of 16 decks +2% synergy
Planeswalkers
Oko, Thief of Crowns
38% of 16 decks +30% synergy
Kiora, Behemoth Beckoner
6% of 16 decks -0% synergy
Karn, the Great Creator
6% of 16 decks +6% synergy
Narset, Parter of Veils
6% of 16 decks +5% synergy
Nissa, Vital Force
6% of 16 decks +5% synergy
Utility Lands
Otawara, Soaring City
62% of 16 decks +44% synergy
Reliquary Tower
56% of 16 decks +6% synergy
Yavimaya, Cradle of Growth
50% of 16 decks +28% synergy
Three Tree City
33% of 15 decks +28% synergy
Minamo, School at Water's Edge
31% of 16 decks +25% synergy
Command Beacon
31% of 16 decks +27% synergy
Urza's Saga
25% of 16 decks +20% synergy
Alchemist's Refuge
19% of 16 decks +1% synergy
Castle Garenbrig
19% of 16 decks +14% synergy
City of Traitors
12% of 16 decks +12% synergy
Rogue's Passage
12% of 16 decks -9% synergy
Dryad Arbor
12% of 16 decks +7% synergy
Shifting Woodland
7% of 15 decks -0% synergy
Geier Reach Sanitarium
6% of 16 decks +6% synergy
Academy Ruins
6% of 16 decks +5% synergy
Wasteland
6% of 16 decks +5% synergy
Nykthos, Shrine to Nyx
6% of 16 decks +3% synergy
Llanowar Reborn
6% of 16 decks +1% synergy
Access Tunnel
6% of 16 decks +5% synergy
Yavimaya Hollow
6% of 16 decks +5% synergy
Scavenger Grounds
6% of 16 decks +2% synergy
Mosswort Bridge
6% of 16 decks -11% synergy
Throne of Makindi
6% of 16 decks +6% synergy
Castle Vantress
6% of 16 decks -1% synergy
Oran-Rief, the Vastwood
6% of 16 decks +1% synergy
Mana Artifacts
Sol Ring
88% of 16 decks +7% synergy
Arcane Signet
75% of 16 decks +12% synergy
Talisman of Curiosity
50% of 16 decks +29% synergy
Thought Vessel
38% of 16 decks +17% synergy
Simic Signet
38% of 16 decks +5% synergy
Fellwar Stone
25% of 16 decks +16% synergy
Chrome Mox
25% of 16 decks +18% synergy
Grim Monolith
25% of 16 decks +22% synergy
Lotus Petal
25% of 16 decks +18% synergy
Mox Diamond
19% of 16 decks +14% synergy
Basalt Monolith
19% of 16 decks +12% synergy
Mox Opal
12% of 16 decks +8% synergy
Commander's Sphere
12% of 16 decks +4% synergy
Patchwork Banner
7% of 15 decks +3% synergy
Lion's Eye Diamond
6% of 16 decks +6% synergy
Simic Cluestone
6% of 16 decks +5% synergy
Machine God's Effigy
6% of 16 decks +5% synergy
Simic Locket
6% of 16 decks +5% synergy
Lands
Island
94% of 16 decks -2% synergy
Forest
88% of 16 decks -8% synergy
Breeding Pool
81% of 16 decks +37% synergy
Command Tower
81% of 16 decks -4% synergy
Yavimaya Coast
75% of 16 decks +23% synergy
Misty Rainforest
69% of 16 decks +38% synergy
Rejuvenating Springs
62% of 16 decks +18% synergy
Tropical Island
56% of 16 decks +42% synergy
Hinterland Harbor
56% of 16 decks -2% synergy
Prismatic Vista
38% of 16 decks +30% synergy
Flooded Grove
38% of 16 decks -2% synergy
Dreamroot Cascade
38% of 16 decks -3% synergy
Windswept Heath
31% of 16 decks +21% synergy
Polluted Delta
31% of 16 decks +21% synergy
Barkchannel Pathway
31% of 16 decks +10% synergy
Flooded Strand
31% of 16 decks +20% synergy
Verdant Catacombs
31% of 16 decks +22% synergy
Hedge Maze
27% of 15 decks +7% synergy
Simic Growth Chamber
25% of 16 decks -24% synergy
Temple of Mystery
25% of 16 decks -14% synergy
Wooded Foothills
25% of 16 decks +16% synergy
Gemstone Caverns
25% of 16 decks +19% synergy
Vineglimmer Snarl
25% of 16 decks -13% synergy
Waterlogged Grove
19% of 16 decks -2% synergy
Cavern of Souls
19% of 16 decks +13% synergy
City of Brass
19% of 16 decks +13% synergy
Exotic Orchard
19% of 16 decks -5% synergy
Evolving Wilds
19% of 16 decks -7% synergy
Scalding Tarn
19% of 16 decks +9% synergy
Mana Confluence
19% of 16 decks +13% synergy
Sink into Stupor
13% of 15 decks +2% synergy
Fabled Passage
12% of 16 decks -2% synergy
Myriad Landscape
12% of 16 decks -10% synergy
Littjara Mirrorlake
12% of 16 decks +8% synergy
Thornwood Falls
12% of 16 decks -6% synergy
Tangled Islet
12% of 16 decks -4% synergy
Snow-Covered Forest
12% of 16 decks +5% synergy
Willowrush Verge
8% of 12 decks -6% synergy
Talon Gates of Madara
7% of 15 decks -2% synergy
Hydroelectric Specimen
7% of 15 decks +1% synergy
Tanglepool Bridge
6% of 16 decks +2% synergy
Snow-Covered Island
6% of 16 decks -1% synergy
Botanical Sanctum
6% of 16 decks -6% synergy
Thriving Grove
6% of 16 decks +5% synergy
Bala Ged Recovery
6% of 16 decks -4% synergy
Simic Guildgate
6% of 16 decks -4% synergy
Terramorphic Expanse
6% of 16 decks -14% synergy
Rimewood Falls
6% of 16 decks -4% synergy
Plaza of Heroes
6% of 16 decks +5% synergy
Glasspool Mimic
6% of 16 decks +2% synergy
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