Koma, Cosmos Serpent (Commander) - Upgraded Control

Koma, Cosmos Serpent
16 decks (0.000%) Rank #283
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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
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Starwinder
50% of 6 decks +43% synergy
High Synergy Cards
Whelming Wave
94% of 16 decks +82% synergy
Elemental Bond
81% of 16 decks +76% synergy
Spark Double
81% of 16 decks +72% synergy
Adrix and Nev, Twincasters
75% of 16 decks +66% synergy
Irenicus's Vile Duplication
69% of 16 decks +62% synergy
Junk Winder
69% of 16 decks +62% synergy
Serpent of Yawning Depths
62% of 16 decks +56% synergy
Tribute to the World Tree
62% of 16 decks +56% synergy
An Offer You Can't Refuse
69% of 16 decks +46% synergy
Three Visits
69% of 16 decks +46% synergy
Top Cards
Cultivate
88% of 16 decks +40% synergy
Counterspell
81% of 16 decks +31% synergy
Growth Spiral
69% of 16 decks +24% synergy
Beast Within
69% of 16 decks +18% synergy
Rampant Growth
69% of 16 decks +28% synergy
Farseek
62% of 16 decks +39% synergy
Arcane Denial
62% of 16 decks +40% synergy
Koma, World-Eater
56% of 16 decks +43% synergy
Aesi, Tyrant of Gyre Strait
56% of 16 decks +39% synergy
Nature's Lore
56% of 16 decks +26% synergy
Game Changers
Rhystic Study
44% of 16 decks +21% synergy
Fierce Guardianship
38% of 16 decks +20% synergy
Cyclonic Rift
38% of 16 decks +10% synergy
Seedborn Muse
25% of 16 decks +9% synergy
The One Ring
12% of 16 decks +5% synergy
Consecrated Sphinx
12% of 16 decks +4% synergy
Narset, Parter of Veils
6% of 16 decks +5% synergy
Kinnan, Bonder Prodigy
6% of 16 decks +3% synergy
Field of the Dead
6% of 16 decks -0% synergy
Gaea's Cradle
6% of 16 decks -1% synergy
Creatures
Tatyova, Benthic Druid
50% of 16 decks +19% synergy
Elvish Mystic
50% of 16 decks +26% synergy
Llanowar Elves
50% of 16 decks +22% synergy
Sakashima of a Thousand Faces
50% of 16 decks +45% synergy
Arixmethes, Slumbering Isle
50% of 16 decks +37% synergy
Spawning Kraken
50% of 16 decks +42% synergy
Summon: Leviathan
40% of 10 decks +33% synergy
Scourge of Fleets
38% of 16 decks +29% synergy
Sakura-Tribe Elder
38% of 16 decks +18% synergy
Eternal Witness
31% of 16 decks +9% synergy
Enduring Curiosity
31% of 16 decks +28% synergy
Sakashima the Impostor
31% of 16 decks +29% synergy
Birds of Paradise
31% of 16 decks +4% synergy
Hullbreaker Horror
31% of 16 decks +14% synergy
Fyndhorn Elves
31% of 16 decks +15% synergy
Garruk's Packleader
25% of 16 decks +23% synergy
Octomancer
25% of 16 decks +20% synergy
Roaming Throne
25% of 16 decks +17% synergy
Murkfiend Liege
25% of 16 decks +10% synergy
Slinn Voda, the Rising Deep
25% of 16 decks +18% synergy
Craterhoof Behemoth
25% of 16 decks +16% synergy
Uro, Titan of Nature's Wrath
25% of 16 decks +15% synergy
Solemn Simulacrum
19% of 16 decks +13% synergy
Curiosity Crafter
19% of 16 decks +15% synergy
Toski, Bearer of Secrets
19% of 16 decks +15% synergy
Delighted Halfling
19% of 16 decks +8% synergy
Icebreaker Kraken
12% of 16 decks +11% synergy
Brinelin, the Moon Kraken
12% of 16 decks +8% synergy
Enduring Vitality
12% of 16 decks +5% synergy
Nadir Kraken
12% of 16 decks +8% synergy
Chasm Skulker
12% of 16 decks +6% synergy
Coiling Oracle
12% of 16 decks -1% synergy
Archetype of Imagination
12% of 16 decks +8% synergy
Tireless Provisioner
12% of 16 decks -3% synergy
Gala Greeters
12% of 16 decks +11% synergy
Clever Impersonator
12% of 16 decks +8% synergy
Simic Sky Swallower
12% of 16 decks +8% synergy
Caelorna, Coral Tyrant
7% of 15 decks +6% synergy
Oviya, Automech Artisan
7% of 15 decks +6% synergy
Maraleaf Pixie
6% of 16 decks +0% synergy
Rashmi, Eternities Crafter
6% of 16 decks +3% synergy
Eluge, the Shoreless Sea
6% of 16 decks +4% synergy
Insidious Fungus
6% of 16 decks +4% synergy
Jaheira, Friend of the Forest
6% of 16 decks +2% synergy
Troyan, Gutsy Explorer
6% of 16 decks +3% synergy
Winged Coatl
6% of 16 decks +6% synergy
Stormtide Leviathan
6% of 16 decks +0% synergy
Mystic Snake
6% of 16 decks +3% synergy
Grappling Kraken
6% of 16 decks +2% synergy
Circle of Dreams Druid
6% of 16 decks +4% synergy
Instants
Double Major
50% of 16 decks +41% synergy
Pongify
44% of 16 decks +19% synergy
Return of the Wildspeaker
44% of 16 decks +33% synergy
Reality Shift
44% of 16 decks +29% synergy
Planar Genesis
44% of 16 decks +33% synergy
Rapid Hybridization
38% of 16 decks +11% synergy
Negate
38% of 16 decks +11% synergy
Mana Drain
38% of 16 decks +22% synergy
Entish Restoration
31% of 16 decks +22% synergy
Heroic Intervention
25% of 16 decks -5% synergy
Brainstorm
25% of 16 decks +11% synergy
Mystic Reflection
25% of 16 decks +22% synergy
Second Harvest
25% of 16 decks +18% synergy
Harrow
25% of 16 decks +13% synergy
Swan Song
25% of 16 decks +6% synergy
Force of Negation
25% of 16 decks +16% synergy
Tamiyo's Safekeeping
25% of 16 decks +19% synergy
Eureka Moment
19% of 16 decks +8% synergy
Frantic Search
19% of 16 decks +13% synergy
Stubborn Denial
19% of 16 decks +16% synergy
Tyvar's Stand
19% of 16 decks +16% synergy
Force of Vigor
19% of 16 decks +14% synergy
Chord of Calling
19% of 16 decks +11% synergy
Nature's Claim
19% of 16 decks +8% synergy
Slip Out the Back
19% of 16 decks +15% synergy
Joint Exploration
19% of 16 decks +13% synergy
Sink into Stupor
19% of 16 decks +8% synergy
Collective Resistance
19% of 16 decks +15% synergy
Voidslime
19% of 16 decks +14% synergy
Simic Charm
19% of 16 decks +10% synergy
Auroral Procession
15% of 13 decks +12% synergy
Muddle the Mixture
12% of 16 decks +8% synergy
Snakeskin Veil
12% of 16 decks +7% synergy
Fog
12% of 16 decks +9% synergy
Three Steps Ahead
12% of 16 decks +10% synergy
Plasm Capture
12% of 16 decks +9% synergy
Krosan Grip
12% of 16 decks +4% synergy
Fact or Fiction
12% of 16 decks +10% synergy
Sublime Epiphany
12% of 16 decks +10% synergy
Roiling Regrowth
12% of 16 decks +8% synergy
Aetherize
12% of 16 decks +1% synergy
Strix Serenade
12% of 16 decks +8% synergy
Quandrix Command
12% of 16 decks +7% synergy
Rewind
12% of 16 decks +10% synergy
Mystic Confluence
12% of 16 decks +9% synergy
Lull
12% of 16 decks +12% synergy
Worldly Tutor
12% of 16 decks -3% synergy
Defend the Rider
7% of 15 decks +6% synergy
Graven Lore
6% of 16 decks +6% synergy
Disdainful Stroke
6% of 16 decks +5% synergy
Sorceries
Kodama's Reach
50% of 16 decks +13% synergy
Skyshroud Claim
50% of 16 decks +41% synergy
Quantum Misalignment
38% of 16 decks +35% synergy
Explore
25% of 16 decks +5% synergy
Ponder
19% of 16 decks +12% synergy
Consuming Tide
19% of 16 decks +17% synergy
Triumph of the Hordes
19% of 16 decks +16% synergy
Urban Evolution
19% of 16 decks +9% synergy
Bala Ged Recovery
19% of 16 decks +9% synergy
Migration Path
19% of 16 decks +15% synergy
Will of the Temur
15% of 13 decks +15% synergy
Into the North
12% of 16 decks +11% synergy
Stolen Identity
12% of 16 decks +12% synergy
Treasure Cruise
12% of 16 decks +9% synergy
Rishkar's Expertise
12% of 16 decks +4% synergy
Preordain
12% of 16 decks +4% synergy
Shamanic Revelation
12% of 16 decks +7% synergy
Ravenform
12% of 16 decks +8% synergy
Regrowth
12% of 16 decks +8% synergy
Polymorph
6% of 16 decks +6% synergy
Windfall
6% of 16 decks +2% synergy
Green Sun's Zenith
6% of 16 decks -3% synergy
Eldritch Evolution
6% of 16 decks +3% synergy
Map the Frontier
6% of 16 decks +5% synergy
Scale the Heights
6% of 16 decks +5% synergy
Replication Technique
6% of 16 decks +3% synergy
Flare of Cultivation
6% of 16 decks +4% synergy
Gitaxian Probe
6% of 16 decks +4% synergy
Ranger's Path
6% of 16 decks +6% synergy
Divination
6% of 16 decks +6% synergy
Peregrination
6% of 16 decks +6% synergy
Sakashima's Will
6% of 16 decks +6% synergy
Primal Command
6% of 16 decks +5% synergy
Last March of the Ents
6% of 16 decks +2% synergy
Fade into Antiquity
6% of 16 decks +6% synergy
Edge of Autumn
6% of 16 decks +6% synergy
They Went This Way
6% of 16 decks +6% synergy
Sea Gate Restoration
6% of 16 decks +1% synergy
Hour of Promise
6% of 16 decks +3% synergy
Wash Out
6% of 16 decks +5% synergy
Curse of the Swine
6% of 16 decks -5% synergy
Grow from the Ashes
6% of 16 decks +4% synergy
Lórien Revealed
6% of 16 decks +3% synergy
Finale of Devastation
6% of 16 decks -6% synergy
Seek the Horizon
6% of 16 decks +6% synergy
Harmonize
6% of 16 decks +1% synergy
Rally the Galadhrim
6% of 16 decks +5% synergy
Vastwood Surge
6% of 16 decks +5% synergy
Pick Your Poison
6% of 16 decks +5% synergy
Search for Tomorrow
6% of 16 decks +1% synergy
Utility Artifacts
Combine Chrysalis
31% of 16 decks +27% synergy
Lightning Greaves
31% of 16 decks +9% synergy
Helm of the Host
25% of 16 decks +20% synergy
Emerald Medallion
25% of 16 decks +22% synergy
Mirror Box
19% of 16 decks +15% synergy
Swiftfoot Boots
19% of 16 decks -7% synergy
Sapphire Medallion
19% of 16 decks +16% synergy
Proteus Staff
12% of 16 decks +12% synergy
Soul-Guide Lantern
6% of 16 decks +6% synergy
Illusionist's Bracers
6% of 16 decks +5% synergy
Oblivion Stone
6% of 16 decks +5% synergy
Worldslayer
6% of 16 decks +6% synergy
Monster Manual
6% of 16 decks +4% synergy
Boompile
6% of 16 decks +6% synergy
Transmogrifying Wand
6% of 16 decks +6% synergy
Maskwood Nexus
6% of 16 decks +3% synergy
Slate of Ancestry
6% of 16 decks +6% synergy
Bident of Thassa
6% of 16 decks -1% synergy
Imposter Mech
6% of 16 decks +6% synergy
Enchantments
Kindred Discovery
50% of 16 decks +40% synergy
Doubling Season
44% of 16 decks +34% synergy
Parallel Lives
38% of 16 decks +31% synergy
Wild Growth
31% of 16 decks +22% synergy
Mystic Remora
31% of 16 decks +16% synergy
Imprisoned in the Moon
19% of 16 decks +15% synergy
Wilderness Reclamation
19% of 16 decks +10% synergy
Kenrith's Transformation
19% of 16 decks +14% synergy
Primal Vigor
19% of 16 decks +15% synergy
Cryptolith Rite
12% of 16 decks +9% synergy
Verity Circle
12% of 16 decks +12% synergy
Garruk's Uprising
12% of 16 decks -3% synergy
Opposition
12% of 16 decks +12% synergy
Propaganda
12% of 16 decks +6% synergy
Growing Rites of Itlimoc
12% of 16 decks +6% synergy
Utopia Sprawl
6% of 16 decks -0% synergy
Exploration
6% of 16 decks -7% synergy
Beastmaster Ascension
6% of 16 decks +3% synergy
Extravagant Replication
6% of 16 decks +4% synergy
Omen of the Sea
6% of 16 decks +5% synergy
Military Intelligence
6% of 16 decks +6% synergy
Elven Chorus
6% of 16 decks +2% synergy
Alpha Authority
6% of 16 decks +5% synergy
Lignify
6% of 16 decks +4% synergy
Omniscience
6% of 16 decks +2% synergy
Unnatural Growth
6% of 16 decks +3% synergy
Kiora Bests the Sea God
6% of 16 decks +4% synergy
Coastal Piracy
6% of 16 decks +5% synergy
Marit Lage's Slumber
6% of 16 decks +6% synergy
Mana Reflection
6% of 16 decks +2% synergy
Amphibian Downpour
6% of 16 decks +1% synergy
Witness Protection
6% of 16 decks +3% synergy
Zendikar's Roil
6% of 16 decks +2% synergy
Web of Inertia
6% of 16 decks +6% synergy
Insight
6% of 16 decks +6% synergy
Khalni Heart Expedition
6% of 16 decks +2% synergy
Eaten by Piranhas
6% of 16 decks +4% synergy
Ever-Watching Threshold
6% of 16 decks +6% synergy
Leyline of Transformation
6% of 16 decks +5% synergy
Paradox Haze
6% of 16 decks +6% synergy
Overgrowth
6% of 16 decks +5% synergy
Mirror Room // Fractured Realm
6% of 16 decks +5% synergy
Defense of the Heart
6% of 16 decks +4% synergy
Confounding Conundrum
6% of 16 decks +6% synergy
Battles
Invasion of Zendikar
6% of 16 decks +4% synergy
Planeswalkers
Oko, Thief of Crowns
31% of 16 decks +24% synergy
Kiora, the Crashing Wave
12% of 16 decks +10% synergy
Kiora, Master of the Depths
6% of 16 decks +4% synergy
Kiora, Behemoth Beckoner
6% of 16 decks -0% synergy
Teferi, Temporal Pilgrim
6% of 16 decks +5% synergy
Utility Lands
Reliquary Tower
38% of 16 decks -13% synergy
Mystic Sanctuary
31% of 16 decks +18% synergy
Yavimaya, Cradle of Growth
25% of 16 decks +3% synergy
Boseiju, Who Endures
19% of 16 decks -3% synergy
Temple of the False God
19% of 16 decks +3% synergy
Three Tree City
19% of 16 decks +13% synergy
Otawara, Soaring City
19% of 16 decks -0% synergy
Mistrise Village
15% of 13 decks +5% synergy
Alchemist's Refuge
12% of 16 decks -5% synergy
Emergence Zone
12% of 16 decks +9% synergy
Command Beacon
12% of 16 decks +8% synergy
Nykthos, Shrine to Nyx
12% of 16 decks +10% synergy
Volatile Fault
12% of 16 decks +10% synergy
Thespian's Stage
12% of 16 decks +6% synergy
Lumbering Falls
12% of 16 decks +5% synergy
Dark Depths
12% of 16 decks +6% synergy
Bonders' Enclave
12% of 16 decks +11% synergy
Interplanar Beacon
6% of 16 decks +6% synergy
Restless Vinestalk
6% of 16 decks +0% synergy
Tolaria West
6% of 16 decks +5% synergy
Scavenger Grounds
6% of 16 decks +2% synergy
War Room
6% of 16 decks +5% synergy
Lonely Sandbar
6% of 16 decks +2% synergy
Skyline Cascade
6% of 16 decks +6% synergy
Shifting Woodland
6% of 16 decks -1% synergy
Mosswort Bridge
6% of 16 decks -11% synergy
The Shire
6% of 16 decks +4% synergy
Tranquil Thicket
6% of 16 decks +2% synergy
Karn's Bastion
6% of 16 decks -5% synergy
Sunken Palace
6% of 16 decks +3% synergy
Cephalid Coliseum
6% of 16 decks +2% synergy
Castle Vantress
6% of 16 decks -1% synergy
Castle Garenbrig
6% of 16 decks +1% synergy
Oran-Rief, the Vastwood
6% of 16 decks +1% synergy
Mana Artifacts
Sol Ring
94% of 16 decks +13% synergy
Arcane Signet
69% of 16 decks +6% synergy
Talisman of Curiosity
38% of 16 decks +16% synergy
Simic Signet
19% of 16 decks -14% synergy
Thought Vessel
19% of 16 decks -1% synergy
Thran Dynamo
12% of 16 decks +10% synergy
Commander's Sphere
6% of 16 decks -3% synergy
Replicating Ring
6% of 16 decks +4% synergy
Lotus Petal
6% of 16 decks -1% synergy
Patchwork Banner
6% of 16 decks +3% synergy
Fellwar Stone
6% of 16 decks -3% synergy
Mind Stone
6% of 16 decks +2% synergy
Nyx Lotus
6% of 16 decks +6% synergy
Lands
Command Tower
88% of 16 decks +2% synergy
Island
81% of 16 decks -14% synergy
Forest
81% of 16 decks -14% synergy
Hinterland Harbor
75% of 16 decks +17% synergy
Vineglimmer Snarl
62% of 16 decks +24% synergy
Yavimaya Coast
62% of 16 decks +10% synergy
Dreamroot Cascade
62% of 16 decks +22% synergy
Breeding Pool
56% of 16 decks +12% synergy
Rejuvenating Springs
56% of 16 decks +12% synergy
Flooded Grove
56% of 16 decks +16% synergy
Misty Rainforest
44% of 16 decks +13% synergy
Simic Growth Chamber
38% of 16 decks -11% synergy
Tangled Islet
38% of 16 decks +21% synergy
Waterlogged Grove
38% of 16 decks +17% synergy
Temple of Mystery
38% of 16 decks -1% synergy
Hedge Maze
38% of 16 decks +18% synergy
Rimewood Falls
31% of 16 decks +21% synergy
Snow-Covered Island
25% of 16 decks +18% synergy
Snow-Covered Forest
25% of 16 decks +18% synergy
Tropical Island
25% of 16 decks +11% synergy
Willowrush Verge
20% of 15 decks +6% synergy
Fabled Passage
19% of 16 decks +4% synergy
Myriad Landscape
19% of 16 decks -4% synergy
Barkchannel Pathway
19% of 16 decks -2% synergy
Sink into Stupor
19% of 16 decks +8% synergy
Bala Ged Recovery
19% of 16 decks +9% synergy
Exotic Orchard
12% of 16 decks -12% synergy
Littjara Mirrorlake
12% of 16 decks +8% synergy
Urza's Cave
12% of 16 decks +8% synergy
Verdant Catacombs
12% of 16 decks +3% synergy
Plaza of Heroes
12% of 16 decks +11% synergy
Evolving Wilds
12% of 16 decks -13% synergy
Polluted Delta
12% of 16 decks +2% synergy
Blighted Woodland
6% of 16 decks -2% synergy
Prismatic Vista
6% of 16 decks -1% synergy
Quandrix Campus
6% of 16 decks -1% synergy
Disciple of Freyalise
6% of 16 decks +2% synergy
Windswept Heath
6% of 16 decks -4% synergy
Sea Gate Restoration
6% of 16 decks +1% synergy
Tangled Florahedron
6% of 16 decks +5% synergy
Wooded Foothills
6% of 16 decks -3% synergy
Botanical Sanctum
6% of 16 decks -6% synergy
Talon Gates of Madara
6% of 16 decks -2% synergy
Path of Ancestry
6% of 16 decks -11% synergy
Brokers Hideout
6% of 16 decks +1% synergy
Glasspool Mimic
6% of 16 decks +2% synergy
Scalding Tarn
6% of 16 decks -4% synergy
Drowner of Truth
6% of 16 decks +4% synergy
Thornwood Falls
6% of 16 decks -12% synergy
Flooded Strand
6% of 16 decks -5% synergy
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