Koma, Cosmos Serpent (Commander) - Optimized Control

Koma, Cosmos Serpent
Rank #289
28decks
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Background image for Can You Build Simic in Commander Without... Going Simic?
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
Utility Artifacts
Enchantments
Planeswalkers
Utility Lands
Mana Artifacts
Lands
Back to Top
Impostor Syndrome
13%inclusion1 decks8 decks
10%synergy
High Synergy Cards
Adrix and Nev, Twincasters
75%inclusion21 decks28 decks
66%synergy
Parallel Lives
68%inclusion19 decks28 decks
62%synergy
Sakashima of a Thousand Faces
64%inclusion18 decks28 decks
59%synergy
Mana Drain
75%inclusion21 decks28 decks
59%synergy
Spark Double
68%inclusion19 decks28 decks
58%synergy
Whelming Wave
68%inclusion19 decks28 decks
56%synergy
Three Visits
75%inclusion21 decks28 decks
52%synergy
Elemental Bond
57%inclusion16 decks28 decks
52%synergy
Sakashima the Impostor
54%inclusion15 decks28 decks
51%synergy
Mystic Remora
64%inclusion18 decks28 decks
49%synergy
Top Cards
Counterspell
79%inclusion22 decks28 decks
28%synergy
Nature's Lore
71%inclusion20 decks28 decks
41%synergy
Birds of Paradise
71%inclusion20 decks28 decks
44%synergy
Heroic Intervention
68%inclusion19 decks28 decks
38%synergy
Beast Within
64%inclusion18 decks28 decks
14%synergy
Cultivate
64%inclusion18 decks28 decks
17%synergy
Kodama's Reach
61%inclusion17 decks28 decks
24%synergy
An Offer You Can't Refuse
61%inclusion17 decks28 decks
38%synergy
Koma, World-Eater
59%inclusion16 decks27 decks
46%synergy
Swan Song
57%inclusion16 decks28 decks
38%synergy
Game Changers
Fierce Guardianship
86%inclusion24 decks28 decks
68%synergy
Cyclonic Rift
82%inclusion23 decks28 decks
56%synergy
Rhystic Study
79%inclusion22 decks28 decks
56%synergy
Force of Will
50%inclusion14 decks28 decks
40%synergy
Consecrated Sphinx
46%inclusion13 decks28 decks
38%synergy
Mystical Tutor
46%inclusion13 decks28 decks
37%synergy
Worldly Tutor
46%inclusion13 decks28 decks
31%synergy
Ancient Tomb
43%inclusion12 decks28 decks
34%synergy
Seedborn Muse
43%inclusion12 decks28 decks
27%synergy
Mana Vault
32%inclusion9 decks28 decks
26%synergy
Creatures
Aesi, Tyrant of Gyre Strait
50%inclusion14 decks28 decks
33%synergy
Junk Winder
46%inclusion13 decks28 decks
40%synergy
Elvish Mystic
43%inclusion12 decks28 decks
19%synergy
Llanowar Elves
43%inclusion12 decks28 decks
15%synergy
Serpent of Yawning Depths
43%inclusion12 decks28 decks
36%synergy
Fyndhorn Elves
39%inclusion11 decks28 decks
23%synergy
Craterhoof Behemoth
36%inclusion10 decks28 decks
26%synergy
Enduring Vitality
33%inclusion9 decks27 decks
26%synergy
Eternal Witness
32%inclusion9 decks28 decks
11%synergy
Sakura-Tribe Elder
32%inclusion9 decks28 decks
13%synergy
Spawning Kraken
32%inclusion9 decks28 decks
25%synergy
Garruk's Packleader
29%inclusion8 decks28 decks
26%synergy
Roaming Throne
29%inclusion8 decks28 decks
20%synergy
Delighted Halfling
29%inclusion8 decks28 decks
17%synergy
Tatyova, Benthic Druid
25%inclusion7 decks28 decks
-7%synergy
Hullbreaker Horror
25%inclusion7 decks28 decks
7%synergy
Vorinclex, Voice of Hunger
21%inclusion6 decks28 decks
18%synergy
Arbor Elf
18%inclusion5 decks28 decks
11%synergy
Fanatic of Rhonas
18%inclusion5 decks28 decks
12%synergy
Lotus Cobra
18%inclusion5 decks28 decks
4%synergy
Kinnan, Bonder Prodigy
18%inclusion5 decks28 decks
15%synergy
Tireless Provisioner
18%inclusion5 decks28 decks
3%synergy
Sphinx of the Second Sun
14%inclusion4 decks28 decks
13%synergy
Azusa, Lost but Seeking
14%inclusion4 decks28 decks
0%synergy
Esix, Fractal Bloom
14%inclusion4 decks28 decks
10%synergy
Faerie Mastermind
14%inclusion4 decks28 decks
10%synergy
Ohran Frostfang
14%inclusion4 decks28 decks
11%synergy
Arixmethes, Slumbering Isle
14%inclusion4 decks28 decks
1%synergy
Uro, Titan of Nature's Wrath
14%inclusion4 decks28 decks
5%synergy
Peregrine Drake
11%inclusion3 decks28 decks
6%synergy
Curiosity Crafter
11%inclusion3 decks28 decks
7%synergy
Selvala, Heart of the Wilds
11%inclusion3 decks28 decks
8%synergy
Hydroelectric Specimen
11%inclusion3 decks28 decks
5%synergy
Coiling Oracle
11%inclusion3 decks28 decks
-3%synergy
Glasspool Mimic
11%inclusion3 decks28 decks
6%synergy
Nezahal, Primal Tide
11%inclusion3 decks28 decks
-1%synergy
Spellskite
11%inclusion3 decks28 decks
5%synergy
Summon: Leviathan
11%inclusion2 decks19 decks
3%synergy
Gene Pollinator
7.7%inclusion1 decks13 decks
7%synergy
Enduring Curiosity
7.4%inclusion2 decks27 decks
4%synergy
Solemn Simulacrum
7.1%inclusion2 decks28 decks
1%synergy
Maraleaf Pixie
7.1%inclusion2 decks28 decks
1%synergy
Collector Ouphe
7.1%inclusion2 decks28 decks
6%synergy
Troyan, Gutsy Explorer
7.1%inclusion2 decks28 decks
4%synergy
Tishana's Tidebinder
7.1%inclusion2 decks28 decks
1%synergy
Thrasios, Triton Hero
7.1%inclusion2 decks28 decks
0%synergy
Overlord of the Hauntwoods
7.1%inclusion2 decks28 decks
4%synergy
Walking Ballista
7.1%inclusion2 decks28 decks
3%synergy
Saryth, the Viper's Fang
7.1%inclusion2 decks28 decks
5%synergy
Kira, Great Glass-Spinner
7.1%inclusion2 decks28 decks
6%synergy
Instants
Rapid Hybridization
43%inclusion12 decks28 decks
16%synergy
Force of Negation
43%inclusion12 decks28 decks
34%synergy
Pongify
39%inclusion11 decks28 decks
15%synergy
Pact of Negation
39%inclusion11 decks28 decks
32%synergy
Growth Spiral
32%inclusion9 decks28 decks
-12%synergy
Arcane Denial
32%inclusion9 decks28 decks
10%synergy
Negate
29%inclusion8 decks28 decks
2%synergy
Second Harvest
25%inclusion7 decks28 decks
19%synergy
Chord of Calling
25%inclusion7 decks28 decks
17%synergy
Sink into Stupor
25%inclusion7 decks28 decks
14%synergy
Double Major
25%inclusion7 decks28 decks
16%synergy
Crop Rotation
21%inclusion6 decks28 decks
8%synergy
Return of the Wildspeaker
21%inclusion6 decks28 decks
11%synergy
Archdruid's Charm
21%inclusion6 decks28 decks
15%synergy
Krosan Grip
21%inclusion6 decks28 decks
13%synergy
Nature's Claim
21%inclusion6 decks28 decks
11%synergy
Reality Shift
21%inclusion6 decks28 decks
7%synergy
Force of Vigor
14%inclusion4 decks28 decks
10%synergy
Harrow
14%inclusion4 decks28 decks
2%synergy
Strix Serenade
14%inclusion4 decks28 decks
10%synergy
Muddle the Mixture
11%inclusion3 decks28 decks
6%synergy
Eureka Moment
11%inclusion3 decks28 decks
0%synergy
Disdainful Stroke
11%inclusion3 decks28 decks
9%synergy
Brainstorm
11%inclusion3 decks28 decks
-4%synergy
Stubborn Denial
11%inclusion3 decks28 decks
8%synergy
Mystic Reflection
11%inclusion3 decks28 decks
8%synergy
Return to Nature
11%inclusion3 decks28 decks
5%synergy
Resculpt
11%inclusion3 decks28 decks
4%synergy
Planar Genesis
11%inclusion3 decks28 decks
0%synergy
Misdirection
11%inclusion3 decks28 decks
9%synergy
Dramatic Reversal
11%inclusion3 decks28 decks
6%synergy
March of Swirling Mist
11%inclusion3 decks28 decks
7%synergy
Consult the Star Charts
7.7%inclusion1 decks13 decks
6%synergy
Whir of Invention
7.1%inclusion2 decks28 decks
5%synergy
Mental Misstep
7.1%inclusion2 decks28 decks
2%synergy
Snakeskin Veil
7.1%inclusion2 decks28 decks
1%synergy
Tyvar's Stand
7.1%inclusion2 decks28 decks
4%synergy
Mindbreak Trap
7.1%inclusion2 decks28 decks
2%synergy
Sublime Epiphany
7.1%inclusion2 decks28 decks
5%synergy
Legolas's Quick Reflexes
7.1%inclusion2 decks28 decks
5%synergy
Dispel
7.1%inclusion2 decks28 decks
2%synergy
Daze
7.1%inclusion2 decks28 decks
6%synergy
Flusterstorm
7.1%inclusion2 decks28 decks
0%synergy
Filter Out
7.1%inclusion2 decks28 decks
4%synergy
Saw It Coming
7.1%inclusion2 decks28 decks
6%synergy
Noxious Revival
7.1%inclusion2 decks28 decks
1%synergy
Wash Away
7.1%inclusion2 decks28 decks
6%synergy
Tamiyo's Safekeeping
7.1%inclusion2 decks28 decks
1%synergy
Voidslime
7.1%inclusion2 decks28 decks
2%synergy
Simic Charm
7.1%inclusion2 decks28 decks
-1%synergy
Sorceries
Rampant Growth
54%inclusion15 decks28 decks
13%synergy
Farseek
43%inclusion12 decks28 decks
19%synergy
Skyshroud Claim
39%inclusion11 decks28 decks
30%synergy
Irenicus's Vile Duplication
39%inclusion11 decks28 decks
33%synergy
Finale of Devastation
25%inclusion7 decks28 decks
13%synergy
Green Sun's Zenith
21%inclusion6 decks28 decks
13%synergy
Fabricate
21%inclusion6 decks28 decks
15%synergy
Windfall
18%inclusion5 decks28 decks
14%synergy
Triumph of the Hordes
18%inclusion5 decks28 decks
15%synergy
Sea Gate Restoration
18%inclusion5 decks28 decks
12%synergy
Rishkar's Expertise
18%inclusion5 decks28 decks
10%synergy
Quantum Misalignment
14%inclusion4 decks28 decks
11%synergy
Bala Ged Recovery
14%inclusion4 decks28 decks
4%synergy
Migration Path
14%inclusion4 decks28 decks
11%synergy
Into the North
11%inclusion3 decks28 decks
10%synergy
Quasiduplicate
11%inclusion3 decks28 decks
8%synergy
Natural Order
11%inclusion3 decks28 decks
9%synergy
Personal Tutor
11%inclusion3 decks28 decks
10%synergy
Search for Tomorrow
11%inclusion3 decks28 decks
6%synergy
Explosive Vegetation
11%inclusion3 decks28 decks
5%synergy
Expropriate
11%inclusion3 decks28 decks
9%synergy
Distant Melody
11%inclusion3 decks28 decks
7%synergy
Time Warp
11%inclusion3 decks28 decks
9%synergy
Overwhelming Stampede
11%inclusion3 decks28 decks
-1%synergy
Regrowth
11%inclusion3 decks28 decks
7%synergy
Solve the Equation
11%inclusion3 decks28 decks
8%synergy
Inundate
7.1%inclusion2 decks28 decks
7%synergy
Eldritch Evolution
7.1%inclusion2 decks28 decks
4%synergy
Flare of Cultivation
7.1%inclusion2 decks28 decks
5%synergy
Tooth and Nail
7.1%inclusion2 decks28 decks
6%synergy
Last March of the Ents
7.1%inclusion2 decks28 decks
3%synergy
Turntimber Symbiosis
7.1%inclusion2 decks28 decks
5%synergy
Neoform
7.1%inclusion2 decks28 decks
3%synergy
Tempt with Discovery
7.1%inclusion2 decks28 decks
3%synergy
Curse of the Swine
7.1%inclusion2 decks28 decks
-4%synergy
Lórien Revealed
7.1%inclusion2 decks28 decks
4%synergy
Temporal Manipulation
7.1%inclusion2 decks28 decks
6%synergy
Drawn from Dreams
7.1%inclusion2 decks28 decks
7%synergy
Harmonize
7.1%inclusion2 decks28 decks
1%synergy
Vastwood Surge
7.1%inclusion2 decks28 decks
6%synergy
River's Rebuke
7.1%inclusion2 decks28 decks
4%synergy
Doppelgang
7.1%inclusion2 decks28 decks
1%synergy
Ravenform
7.1%inclusion2 decks28 decks
2%synergy
Open the Way
7.1%inclusion2 decks28 decks
5%synergy
Genesis Wave
7.1%inclusion2 decks28 decks
3%synergy
Raise the Palisade
7.1%inclusion2 decks28 decks
1%synergy
Rite of Replication
7.1%inclusion2 decks28 decks
0%synergy
Utility Artifacts
Lightning Greaves
50%inclusion14 decks28 decks
28%synergy
Swiftfoot Boots
32%inclusion9 decks28 decks
6%synergy
Helm of the Host
29%inclusion8 decks28 decks
23%synergy
Static Orb
25%inclusion7 decks28 decks
25%synergy
Winter Orb
25%inclusion7 decks28 decks
25%synergy
The One Ring
25%inclusion7 decks28 decks
17%synergy
Mirror Box
14%inclusion4 decks28 decks
11%synergy
Winter Moon
14%inclusion4 decks28 decks
14%synergy
Isochron Scepter
14%inclusion4 decks28 decks
12%synergy
Skullclamp
11%inclusion3 decks28 decks
10%synergy
Emerald Medallion
11%inclusion3 decks28 decks
8%synergy
Banner of Kinship
7.4%inclusion2 decks27 decks
5%synergy
Giant's Amulet
7.1%inclusion2 decks28 decks
7%synergy
Sensei's Divining Top
7.1%inclusion2 decks28 decks
4%synergy
Moonsilver Key
7.1%inclusion2 decks28 decks
3%synergy
Coat of Arms
7.1%inclusion2 decks28 decks
6%synergy
The Great Henge
7.1%inclusion2 decks28 decks
-2%synergy
Combine Chrysalis
7.1%inclusion2 decks28 decks
3%synergy
Idol of Oblivion
7.1%inclusion2 decks28 decks
4%synergy
Commander's Plate
7.1%inclusion2 decks28 decks
7%synergy
Sapphire Medallion
7.1%inclusion2 decks28 decks
4%synergy
Enchantments
Doubling Season
54%inclusion15 decks28 decks
44%synergy
Tribute to the World Tree
43%inclusion12 decks28 decks
36%synergy
Sylvan Library
39%inclusion11 decks28 decks
30%synergy
Kindred Discovery
18%inclusion5 decks28 decks
7%synergy
Wild Growth
18%inclusion5 decks28 decks
9%synergy
Defense of the Heart
18%inclusion5 decks28 decks
16%synergy
Moonlit Meditation
15%inclusion2 decks13 decks
14%synergy
Utopia Sprawl
14%inclusion4 decks28 decks
8%synergy
Kenrith's Transformation
14%inclusion4 decks28 decks
10%synergy
Primal Vigor
14%inclusion4 decks28 decks
11%synergy
Paradox Haze
14%inclusion4 decks28 decks
14%synergy
Back to Basics
11%inclusion3 decks28 decks
10%synergy
Verity Circle
11%inclusion3 decks28 decks
10%synergy
Carpet of Flowers
11%inclusion3 decks28 decks
8%synergy
Imprisoned in the Moon
11%inclusion3 decks28 decks
7%synergy
Dismiss into Dream
11%inclusion3 decks28 decks
10%synergy
Opposition
11%inclusion3 decks28 decks
10%synergy
Cryptolith Rite
7.1%inclusion2 decks28 decks
4%synergy
Exploration
7.1%inclusion2 decks28 decks
-6%synergy
Wizard Class
7.1%inclusion2 decks28 decks
2%synergy
Pattern of Rebirth
7.1%inclusion2 decks28 decks
7%synergy
Unnatural Growth
7.1%inclusion2 decks28 decks
4%synergy
Song of the Dryads
7.1%inclusion2 decks28 decks
6%synergy
Kiora Bests the Sea God
7.1%inclusion2 decks28 decks
5%synergy
Stasis
7.1%inclusion2 decks28 decks
7%synergy
Propaganda
7.1%inclusion2 decks28 decks
1%synergy
Planeswalkers
Oko, Thief of Crowns
39%inclusion11 decks28 decks
32%synergy
Narset, Parter of Veils
11%inclusion3 decks28 decks
9%synergy
Tezzeret the Seeker
7.1%inclusion2 decks28 decks
3%synergy
Utility Lands
Boseiju, Who Endures
57%inclusion16 decks28 decks
35%synergy
Reliquary Tower
57%inclusion16 decks28 decks
7%synergy
Command Beacon
39%inclusion11 decks28 decks
35%synergy
Yavimaya, Cradle of Growth
36%inclusion10 decks28 decks
14%synergy
Otawara, Soaring City
36%inclusion10 decks28 decks
17%synergy
Mistrise Village
32%inclusion8 decks25 decks
22%synergy
Evendo, Waking Haven
31%inclusion4 decks13 decks
26%synergy
Gaea's Cradle
25%inclusion7 decks28 decks
18%synergy
Three Tree City
18%inclusion5 decks28 decks
13%synergy
Castle Garenbrig
18%inclusion5 decks28 decks
13%synergy
Mystic Sanctuary
14%inclusion4 decks28 decks
2%synergy
Urza's Saga
14%inclusion4 decks28 decks
9%synergy
Minamo, School at Water's Edge
11%inclusion3 decks28 decks
4%synergy
Alchemist's Refuge
11%inclusion3 decks28 decks
-7%synergy
Mosswort Bridge
11%inclusion3 decks28 decks
-7%synergy
Thespian's Stage
11%inclusion3 decks28 decks
4%synergy
Temple of the False God
11%inclusion3 decks28 decks
-5%synergy
Dryad Arbor
11%inclusion3 decks28 decks
5%synergy
Rivendell
7.1%inclusion2 decks28 decks
1%synergy
Boseiju, Who Shelters All
7.1%inclusion2 decks28 decks
6%synergy
Crystal Vein
7.1%inclusion2 decks28 decks
7%synergy
Shifting Woodland
7.1%inclusion2 decks28 decks
0%synergy
Cephalid Coliseum
7.1%inclusion2 decks28 decks
3%synergy
Homeward Path
7.1%inclusion2 decks28 decks
5%synergy
Castle Vantress
7.1%inclusion2 decks28 decks
0%synergy
Rogue's Passage
7.1%inclusion2 decks28 decks
-15%synergy
Zanarkand, Ancient Metropolis
5.3%inclusion1 decks19 decks
4%synergy
Mana Artifacts
Sol Ring
93%inclusion26 decks28 decks
12%synergy
Arcane Signet
82%inclusion23 decks28 decks
19%synergy
Thought Vessel
43%inclusion12 decks28 decks
23%synergy
Talisman of Curiosity
36%inclusion10 decks28 decks
14%synergy
Simic Signet
32%inclusion9 decks28 decks
0%synergy
Lotus Petal
18%inclusion5 decks28 decks
11%synergy
Basalt Monolith
11%inclusion3 decks28 decks
4%synergy
Fellwar Stone
11%inclusion3 decks28 decks
1%synergy
Mind Stone
7.1%inclusion2 decks28 decks
3%synergy
Chrome Mox
7.1%inclusion2 decks28 decks
0%synergy
Lands
Breeding Pool
93%inclusion26 decks28 decks
48%synergy
Command Tower
89%inclusion25 decks28 decks
4%synergy
Island
82%inclusion23 decks28 decks
-13%synergy
Forest
82%inclusion23 decks28 decks
-13%synergy
Rejuvenating Springs
82%inclusion23 decks28 decks
38%synergy
Misty Rainforest
68%inclusion19 decks28 decks
37%synergy
Hinterland Harbor
68%inclusion19 decks28 decks
9%synergy
Yavimaya Coast
61%inclusion17 decks28 decks
8%synergy
Dreamroot Cascade
54%inclusion15 decks28 decks
12%synergy
Barkchannel Pathway
50%inclusion14 decks28 decks
29%synergy
Simic Growth Chamber
46%inclusion13 decks28 decks
-2%synergy
Flooded Grove
39%inclusion11 decks28 decks
-1%synergy
Prismatic Vista
36%inclusion10 decks28 decks
28%synergy
Waterlogged Grove
32%inclusion9 decks28 decks
12%synergy
Hedge Maze
29%inclusion8 decks28 decks
9%synergy
Fabled Passage
25%inclusion7 decks28 decks
11%synergy
Windswept Heath
25%inclusion7 decks28 decks
15%synergy
Tropical Island
25%inclusion7 decks28 decks
11%synergy
Sink into Stupor
25%inclusion7 decks28 decks
14%synergy
Exotic Orchard
21%inclusion6 decks28 decks
-2%synergy
Snow-Covered Island
21%inclusion6 decks28 decks
14%synergy
Snow-Covered Forest
21%inclusion6 decks28 decks
15%synergy
Rimewood Falls
21%inclusion6 decks28 decks
12%synergy
Willowrush Verge
19%inclusion5 decks27 decks
3%synergy
Myriad Landscape
18%inclusion5 decks28 decks
-5%synergy
Vineglimmer Snarl
18%inclusion5 decks28 decks
-21%synergy
Sea Gate Restoration
18%inclusion5 decks28 decks
12%synergy
Wooded Foothills
18%inclusion5 decks28 decks
8%synergy
Verdant Catacombs
18%inclusion5 decks28 decks
8%synergy
Temple of Mystery
18%inclusion5 decks28 decks
-21%synergy
Botanical Sanctum
18%inclusion5 decks28 decks
5%synergy
Flooded Strand
18%inclusion5 decks28 decks
7%synergy
Scalding Tarn
14%inclusion4 decks28 decks
4%synergy
Mana Confluence
14%inclusion4 decks28 decks
9%synergy
Bala Ged Recovery
14%inclusion4 decks28 decks
4%synergy
Polluted Delta
14%inclusion4 decks28 decks
4%synergy
City of Brass
14%inclusion4 decks28 decks
8%synergy
Tangled Islet
11%inclusion3 decks28 decks
-6%synergy
Hydroelectric Specimen
11%inclusion3 decks28 decks
5%synergy
Reflecting Pool
11%inclusion3 decks28 decks
8%synergy
Cavern of Souls
11%inclusion3 decks28 decks
5%synergy
Glasspool Mimic
11%inclusion3 decks28 decks
6%synergy
Turntimber Symbiosis
7.1%inclusion2 decks28 decks
5%synergy
Evolving Wilds
7.1%inclusion2 decks28 decks
-18%synergy
Gemstone Caverns
7.1%inclusion2 decks28 decks
1%synergy
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