Koma, Cosmos Serpent (Commander) - Expensive Upgraded

Koma, Cosmos Serpent
Rank #289
31decks
Background image for Can You Build Simic in Commander Without... Going Simic?
Arnaud Gompertz
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.
Deck Filters
Cardsphere
Archidekt
Commander Spellbook
Moxfield
Scryfall
MTGStocks
Chameleon, Master of Disguise
45%inclusion5 decks11 decks
43%synergy
Mutable Explorer
10%inclusion1 decks10 decks
10%synergy
Impostor Syndrome
9.1%inclusion1 decks11 decks
7%synergy
The Clone Saga
8.3%inclusion1 decks12 decks
8%synergy
High Synergy Cards
Parallel Lives
87%inclusion27 decks31 decks
81%synergy
Elemental Bond
81%inclusion25 decks31 decks
75%synergy
Spark Double
84%inclusion26 decks31 decks
74%synergy
Sakashima of a Thousand Faces
77%inclusion24 decks31 decks
72%synergy
Adrix and Nev, Twincasters
81%inclusion25 decks31 decks
72%synergy
Sakashima the Impostor
65%inclusion20 decks31 decks
62%synergy
Mana Drain
77%inclusion24 decks31 decks
62%synergy
Serpent of Yawning Depths
68%inclusion21 decks31 decks
61%synergy
Whelming Wave
71%inclusion22 decks31 decks
60%synergy
Tribute to the World Tree
65%inclusion20 decks31 decks
58%synergy
Top Cards
Nature's Lore
84%inclusion26 decks31 decks
54%synergy
Three Visits
77%inclusion24 decks31 decks
54%synergy
Heroic Intervention
74%inclusion23 decks31 decks
44%synergy
Farseek
74%inclusion23 decks31 decks
50%synergy
Cultivate
71%inclusion22 decks31 decks
24%synergy
Beast Within
71%inclusion22 decks31 decks
20%synergy
Doubling Season
61%inclusion19 decks31 decks
52%synergy
Irenicus's Vile Duplication
61%inclusion19 decks31 decks
55%synergy
Counterspell
61%inclusion19 decks31 decks
11%synergy
Rampant Growth
61%inclusion19 decks31 decks
20%synergy
Game Changers
Cyclonic Rift
65%inclusion20 decks31 decks
38%synergy
Rhystic Study
55%inclusion17 decks31 decks
33%synergy
Gaea's Cradle
39%inclusion12 decks31 decks
31%synergy
Fierce Guardianship
35%inclusion11 decks31 decks
18%synergy
Consecrated Sphinx
32%inclusion10 decks31 decks
23%synergy
Ancient Tomb
23%inclusion7 decks31 decks
13%synergy
Seedborn Muse
19%inclusion6 decks31 decks
4%synergy
The One Ring
16%inclusion5 decks31 decks
8%synergy
Worldly Tutor
16%inclusion5 decks31 decks
0%synergy
Natural Order
6.5%inclusion2 decks31 decks
5%synergy
Creatures
Koma, World-Eater
58%inclusion18 decks31 decks
45%synergy
Llanowar Elves
55%inclusion17 decks31 decks
27%synergy
Junk Winder
52%inclusion16 decks31 decks
45%synergy
Craterhoof Behemoth
52%inclusion16 decks31 decks
42%synergy
Birds of Paradise
48%inclusion15 decks31 decks
21%synergy
Spawning Kraken
48%inclusion15 decks31 decks
41%synergy
Elvish Mystic
42%inclusion13 decks31 decks
18%synergy
Summon: Leviathan
40%inclusion8 decks20 decks
33%synergy
Aesi, Tyrant of Gyre Strait
35%inclusion11 decks31 decks
19%synergy
Arixmethes, Slumbering Isle
35%inclusion11 decks31 decks
22%synergy
Sakura-Tribe Elder
35%inclusion11 decks31 decks
16%synergy
Roaming Throne
35%inclusion11 decks31 decks
27%synergy
Ohran Frostfang
32%inclusion10 decks31 decks
29%synergy
Fyndhorn Elves
29%inclusion9 decks31 decks
13%synergy
Garruk's Packleader
29%inclusion9 decks31 decks
27%synergy
Eternal Witness
26%inclusion8 decks31 decks
4%synergy
Murkfiend Liege
23%inclusion7 decks31 decks
7%synergy
Fanatic of Rhonas
23%inclusion7 decks31 decks
17%synergy
Enduring Curiosity
23%inclusion7 decks31 decks
19%synergy
Esix, Fractal Bloom
19%inclusion6 decks31 decks
15%synergy
Delighted Halfling
19%inclusion6 decks31 decks
8%synergy
Tatyova, Benthic Druid
19%inclusion6 decks31 decks
-12%synergy
Circle of Dreams Druid
19%inclusion6 decks31 decks
17%synergy
Octomancer
19%inclusion6 decks31 decks
15%synergy
Hullbreaker Horror
19%inclusion6 decks31 decks
2%synergy
Saryth, the Viper's Fang
19%inclusion6 decks31 decks
18%synergy
Enduring Vitality
16%inclusion5 decks31 decks
9%synergy
Toski, Bearer of Secrets
16%inclusion5 decks31 decks
13%synergy
Skyserpent Seeker
13%inclusion4 decks31 decks
10%synergy
Glasspool Mimic
13%inclusion4 decks31 decks
9%synergy
Auton Soldier
13%inclusion4 decks31 decks
11%synergy
Archetype of Imagination
13%inclusion4 decks31 decks
8%synergy
Uro, Titan of Nature's Wrath
13%inclusion4 decks31 decks
3%synergy
Reclamation Sage
13%inclusion4 decks31 decks
-2%synergy
Champion of Lambholt
13%inclusion4 decks31 decks
8%synergy
Prime Speaker Zegana
10%inclusion3 decks31 decks
-1%synergy
Overlord of the Hauntwoods
10%inclusion3 decks31 decks
7%synergy
Slinn Voda, the Rising Deep
10%inclusion3 decks31 decks
3%synergy
Scute Swarm
10%inclusion3 decks31 decks
-11%synergy
Kodama of the East Tree
10%inclusion3 decks31 decks
4%synergy
Avenger of Zendikar
10%inclusion3 decks31 decks
-8%synergy
Bane of Progress
10%inclusion3 decks31 decks
8%synergy
Beast Whisperer
10%inclusion3 decks31 decks
0%synergy
Ancient Bronze Dragon
10%inclusion3 decks31 decks
9%synergy
Torrential Gearhulk
10%inclusion3 decks31 decks
9%synergy
Spellskite
10%inclusion3 decks31 decks
4%synergy
Sun Quan, Lord of Wu
10%inclusion3 decks31 decks
9%synergy
Willbreaker
10%inclusion3 decks31 decks
9%synergy
Pirated Copy
6.5%inclusion2 decks31 decks
6%synergy
Troyan, Gutsy Explorer
6.5%inclusion2 decks31 decks
3%synergy
Instants
Swan Song
45%inclusion14 decks31 decks
26%synergy
Double Major
45%inclusion14 decks31 decks
37%synergy
An Offer You Can't Refuse
39%inclusion12 decks31 decks
16%synergy
Rapid Hybridization
35%inclusion11 decks31 decks
9%synergy
Pongify
35%inclusion11 decks31 decks
11%synergy
Growth Spiral
32%inclusion10 decks31 decks
-12%synergy
Chord of Calling
29%inclusion9 decks31 decks
21%synergy
Arcane Denial
29%inclusion9 decks31 decks
7%synergy
Sink into Stupor
29%inclusion9 decks31 decks
18%synergy
Return of the Wildspeaker
29%inclusion9 decks31 decks
19%synergy
Second Harvest
29%inclusion9 decks31 decks
23%synergy
Negate
23%inclusion7 decks31 decks
-4%synergy
Krosan Grip
19%inclusion6 decks31 decks
11%synergy
Force of Vigor
19%inclusion6 decks31 decks
15%synergy
Stubborn Denial
19%inclusion6 decks31 decks
17%synergy
Nature's Claim
19%inclusion6 decks31 decks
9%synergy
Force of Negation
19%inclusion6 decks31 decks
11%synergy
Reality Shift
19%inclusion6 decks31 decks
5%synergy
Noxious Revival
16%inclusion5 decks31 decks
10%synergy
Planar Genesis
16%inclusion5 decks31 decks
5%synergy
Pact of Negation
16%inclusion5 decks31 decks
9%synergy
Archdruid's Charm
16%inclusion5 decks31 decks
10%synergy
Plasm Capture
13%inclusion4 decks31 decks
9%synergy
Brainstorm
13%inclusion4 decks31 decks
-1%synergy
Harrow
13%inclusion4 decks31 decks
1%synergy
Snakeskin Veil
13%inclusion4 decks31 decks
7%synergy
Tamiyo's Safekeeping
13%inclusion4 decks31 decks
7%synergy
Auroral Procession
11%inclusion3 decks27 decks
7%synergy
Entish Restoration
10%inclusion3 decks31 decks
0%synergy
Obscuring Haze
10%inclusion3 decks31 decks
8%synergy
Tyvar's Stand
10%inclusion3 decks31 decks
7%synergy
Resculpt
10%inclusion3 decks31 decks
3%synergy
Archmage's Charm
10%inclusion3 decks31 decks
9%synergy
Eureka Moment
10%inclusion3 decks31 decks
-1%synergy
Sublime Epiphany
10%inclusion3 decks31 decks
8%synergy
Mizzium Skin
6.5%inclusion2 decks31 decks
6%synergy
Mental Misstep
6.5%inclusion2 decks31 decks
1%synergy
Legolas's Quick Reflexes
6.5%inclusion2 decks31 decks
4%synergy
Capsize
6.5%inclusion2 decks31 decks
5%synergy
Return to Nature
6.5%inclusion2 decks31 decks
1%synergy
Slip Out the Back
6.5%inclusion2 decks31 decks
3%synergy
March of Swirling Mist
6.5%inclusion2 decks31 decks
2%synergy
Khalni Ambush
6.5%inclusion2 decks31 decks
5%synergy
Mindbreak Trap
6.5%inclusion2 decks31 decks
2%synergy
Ranger's Guile
6.5%inclusion2 decks31 decks
6%synergy
Pull from Tomorrow
6.5%inclusion2 decks31 decks
4%synergy
Muddle the Mixture
6.5%inclusion2 decks31 decks
2%synergy
Three Steps Ahead
6.5%inclusion2 decks31 decks
4%synergy
Wrap in Vigor
6.5%inclusion2 decks31 decks
5%synergy
Mystic Reflection
6.5%inclusion2 decks31 decks
4%synergy
Sorceries
Kodama's Reach
58%inclusion18 decks31 decks
21%synergy
Skyshroud Claim
52%inclusion16 decks31 decks
42%synergy
Quantum Misalignment
35%inclusion11 decks31 decks
33%synergy
Sea Gate Restoration
32%inclusion10 decks31 decks
27%synergy
Migration Path
29%inclusion9 decks31 decks
26%synergy
Bala Ged Recovery
26%inclusion8 decks31 decks
16%synergy
Overwhelming Stampede
26%inclusion8 decks31 decks
14%synergy
Into the North
23%inclusion7 decks31 decks
21%synergy
Finale of Devastation
23%inclusion7 decks31 decks
11%synergy
Shamanic Revelation
19%inclusion6 decks31 decks
14%synergy
Green Sun's Zenith
16%inclusion5 decks31 decks
7%synergy
Triumph of the Hordes
16%inclusion5 decks31 decks
13%synergy
Vastwood Surge
16%inclusion5 decks31 decks
15%synergy
Hunting Wilds
13%inclusion4 decks31 decks
12%synergy
Ranger's Path
13%inclusion4 decks31 decks
12%synergy
Rishkar's Expertise
13%inclusion4 decks31 decks
5%synergy
Nature's Rhythm
11%inclusion3 decks27 decks
5%synergy
Turntimber Symbiosis
10%inclusion3 decks31 decks
7%synergy
Explore
10%inclusion3 decks31 decks
-11%synergy
Rite of Replication
10%inclusion3 decks31 decks
2%synergy
Distant Melody
10%inclusion3 decks31 decks
6%synergy
Glimpse the Core
10%inclusion3 decks31 decks
9%synergy
Will of the Temur
7.4%inclusion2 decks27 decks
7%synergy
Polymorph
6.5%inclusion2 decks31 decks
6%synergy
Overrun
6.5%inclusion2 decks31 decks
4%synergy
Sylvan Tutor
6.5%inclusion2 decks31 decks
5%synergy
Search for Tomorrow
6.5%inclusion2 decks31 decks
2%synergy
Bridgeworks Battle
6.5%inclusion2 decks31 decks
2%synergy
Tezzeret's Gambit
6.5%inclusion2 decks31 decks
2%synergy
Regrowth
6.5%inclusion2 decks31 decks
3%synergy
Raise the Palisade
6.5%inclusion2 decks31 decks
0%synergy
Ponder
6.5%inclusion2 decks31 decks
-1%synergy
Oversimplify
6.5%inclusion2 decks31 decks
2%synergy
Tempt with Discovery
6.5%inclusion2 decks31 decks
2%synergy
Curse of the Swine
6.5%inclusion2 decks31 decks
-5%synergy
Harmonize
6.5%inclusion2 decks31 decks
1%synergy
Day's Undoing
6.5%inclusion2 decks31 decks
6%synergy
Nissa's Pilgrimage
6.5%inclusion2 decks31 decks
5%synergy
Flare of Cultivation
6.5%inclusion2 decks31 decks
4%synergy
Broken Bond
6.5%inclusion2 decks31 decks
1%synergy
Explosive Vegetation
6.5%inclusion2 decks31 decks
1%synergy
Solve the Equation
6.5%inclusion2 decks31 decks
4%synergy
Utility Artifacts
Lightning Greaves
58%inclusion18 decks31 decks
36%synergy
Helm of the Host
48%inclusion15 decks31 decks
43%synergy
Swiftfoot Boots
42%inclusion13 decks31 decks
16%synergy
The Great Henge
39%inclusion12 decks31 decks
30%synergy
Combine Chrysalis
19%inclusion6 decks31 decks
15%synergy
Eldrazi Monument
16%inclusion5 decks31 decks
16%synergy
Mirror Box
13%inclusion4 decks31 decks
9%synergy
Proteus Staff
10%inclusion3 decks31 decks
10%synergy
Emerald Medallion
10%inclusion3 decks31 decks
7%synergy
Coat of Arms
6.5%inclusion2 decks31 decks
5%synergy
Banner of Kinship
6.5%inclusion2 decks31 decks
5%synergy
Champion's Helm
6.5%inclusion2 decks31 decks
6%synergy
Soul-Guide Lantern
6.5%inclusion2 decks31 decks
6%synergy
Skullclamp
6.5%inclusion2 decks31 decks
5%synergy
Enchantments
Kindred Discovery
52%inclusion16 decks31 decks
41%synergy
Mystic Remora
45%inclusion14 decks31 decks
30%synergy
Defense of the Heart
29%inclusion9 decks31 decks
27%synergy
Sylvan Library
26%inclusion8 decks31 decks
16%synergy
Utopia Sprawl
26%inclusion8 decks31 decks
19%synergy
Wild Growth
23%inclusion7 decks31 decks
14%synergy
Cryptolith Rite
23%inclusion7 decks31 decks
19%synergy
Exploration
19%inclusion6 decks31 decks
6%synergy
Growing Rites of Itlimoc
19%inclusion6 decks31 decks
13%synergy
Moonlit Meditation
19%inclusion3 decks16 decks
17%synergy
Primal Vigor
16%inclusion5 decks31 decks
13%synergy
Paradox Haze
16%inclusion5 decks31 decks
16%synergy
Extravagant Replication
13%inclusion4 decks31 decks
11%synergy
Beastmaster Ascension
13%inclusion4 decks31 decks
10%synergy
Opposition
13%inclusion4 decks31 decks
12%synergy
Imprisoned in the Moon
13%inclusion4 decks31 decks
9%synergy
Garruk's Uprising
10%inclusion3 decks31 decks
-6%synergy
Propaganda
6.5%inclusion2 decks31 decks
0%synergy
Simic Ascendancy
6.5%inclusion2 decks31 decks
-7%synergy
Storm of Saruman
6.5%inclusion2 decks31 decks
6%synergy
One with the Multiverse
6.5%inclusion2 decks31 decks
4%synergy
Verity Circle
6.5%inclusion2 decks31 decks
6%synergy
Back from the Brink
6.5%inclusion2 decks31 decks
6%synergy
Dismiss into Dream
6.5%inclusion2 decks31 decks
6%synergy
Fertile Ground
6.5%inclusion2 decks31 decks
5%synergy
Battles
Invasion of Ikoria
13%inclusion4 decks31 decks
8%synergy
Invasion of Zendikar
10%inclusion3 decks31 decks
8%synergy
Planeswalkers
Oko, Thief of Crowns
42%inclusion13 decks31 decks
35%synergy
Nissa, Ascended Animist
6.5%inclusion2 decks31 decks
5%synergy
Nissa, Who Shakes the World
6.5%inclusion2 decks31 decks
3%synergy
Utility Lands
Boseiju, Who Endures
65%inclusion20 decks31 decks
42%synergy
Yavimaya, Cradle of Growth
55%inclusion17 decks31 decks
33%synergy
Otawara, Soaring City
55%inclusion17 decks31 decks
36%synergy
Reliquary Tower
52%inclusion16 decks31 decks
1%synergy
Mistrise Village
37%inclusion10 decks27 decks
27%synergy
Three Tree City
32%inclusion10 decks31 decks
27%synergy
Mystic Sanctuary
29%inclusion9 decks31 decks
16%synergy
Command Beacon
23%inclusion7 decks31 decks
18%synergy
Alchemist's Refuge
16%inclusion5 decks31 decks
-2%synergy
Urza's Saga
13%inclusion4 decks31 decks
7%synergy
Castle Garenbrig
13%inclusion4 decks31 decks
8%synergy
Temple of the False God
13%inclusion4 decks31 decks
-3%synergy
Dryad Arbor
13%inclusion4 decks31 decks
7%synergy
Evendo, Waking Haven
13%inclusion2 decks16 decks
7%synergy
Strip Mine
10%inclusion3 decks31 decks
7%synergy
Rogue's Passage
10%inclusion3 decks31 decks
-12%synergy
Minamo, School at Water's Edge
6.5%inclusion2 decks31 decks
0%synergy
Scavenger Grounds
6.5%inclusion2 decks31 decks
2%synergy
Oboro, Palace in the Clouds
6.5%inclusion2 decks31 decks
4%synergy
Wasteland
6.5%inclusion2 decks31 decks
5%synergy
Shifting Woodland
6.5%inclusion2 decks31 decks
0%synergy
Nykthos, Shrine to Nyx
6.5%inclusion2 decks31 decks
4%synergy
Field of the Dead
6.5%inclusion2 decks31 decks
0%synergy
Homeward Path
6.5%inclusion2 decks31 decks
4%synergy
Yavimaya Hollow
6.5%inclusion2 decks31 decks
6%synergy
Emergence Zone
6.5%inclusion2 decks31 decks
2%synergy
Uthros, Titanic Godcore
5.9%inclusion1 decks17 decks
4%synergy
Mana Artifacts
Sol Ring
100%inclusion31 decks31 decks
19%synergy
Arcane Signet
68%inclusion21 decks31 decks
5%synergy
Talisman of Curiosity
42%inclusion13 decks31 decks
21%synergy
Thought Vessel
39%inclusion12 decks31 decks
19%synergy
Simic Signet
26%inclusion8 decks31 decks
-7%synergy
Fellwar Stone
26%inclusion8 decks31 decks
16%synergy
Decanter of Endless Water
16%inclusion5 decks31 decks
11%synergy
Chromatic Lantern
13%inclusion4 decks31 decks
11%synergy
Commander's Sphere
10%inclusion3 decks31 decks
1%synergy
Everflowing Chalice
6.5%inclusion2 decks31 decks
2%synergy
Lotus Petal
6.5%inclusion2 decks31 decks
-1%synergy
Patchwork Banner
6.5%inclusion2 decks31 decks
3%synergy
Liquimetal Torque
6.5%inclusion2 decks31 decks
6%synergy
Mana Vault
6.5%inclusion2 decks31 decks
0%synergy
Thran Dynamo
6.5%inclusion2 decks31 decks
4%synergy
Mind Stone
6.5%inclusion2 decks31 decks
2%synergy
Lands
Breeding Pool
97%inclusion30 decks31 decks
52%synergy
Tropical Island
94%inclusion29 decks31 decks
79%synergy
Island
90%inclusion28 decks31 decks
-5%synergy
Rejuvenating Springs
90%inclusion28 decks31 decks
46%synergy
Forest
90%inclusion28 decks31 decks
-5%synergy
Misty Rainforest
87%inclusion27 decks31 decks
56%synergy
Command Tower
84%inclusion26 decks31 decks
-2%synergy
Hedge Maze
65%inclusion20 decks31 decks
45%synergy
Hinterland Harbor
65%inclusion20 decks31 decks
5%synergy
Yavimaya Coast
52%inclusion16 decks31 decks
-1%synergy
Dreamroot Cascade
48%inclusion15 decks31 decks
7%synergy
Scalding Tarn
45%inclusion14 decks31 decks
35%synergy
Flooded Grove
45%inclusion14 decks31 decks
5%synergy
Willowrush Verge
42%inclusion13 decks31 decks
26%synergy
Verdant Catacombs
42%inclusion13 decks31 decks
32%synergy
Barkchannel Pathway
39%inclusion12 decks31 decks
18%synergy
Wooded Foothills
35%inclusion11 decks31 decks
26%synergy
Waterlogged Grove
32%inclusion10 decks31 decks
12%synergy
Windswept Heath
32%inclusion10 decks31 decks
22%synergy
Sea Gate Restoration
32%inclusion10 decks31 decks
27%synergy
Snow-Covered Island
32%inclusion10 decks31 decks
25%synergy
Polluted Delta
32%inclusion10 decks31 decks
22%synergy
Flooded Strand
32%inclusion10 decks31 decks
21%synergy
Simic Growth Chamber
29%inclusion9 decks31 decks
-20%synergy
Snow-Covered Forest
29%inclusion9 decks31 decks
22%synergy
Sink into Stupor
29%inclusion9 decks31 decks
18%synergy
Bala Ged Recovery
26%inclusion8 decks31 decks
16%synergy
Temple of Mystery
23%inclusion7 decks31 decks
-16%synergy
Prismatic Vista
23%inclusion7 decks31 decks
15%synergy
Rimewood Falls
23%inclusion7 decks31 decks
13%synergy
Vineglimmer Snarl
23%inclusion7 decks31 decks
-16%synergy
Tangled Islet
19%inclusion6 decks31 decks
3%synergy
Evolving Wilds
19%inclusion6 decks31 decks
-6%synergy
Fabled Passage
16%inclusion5 decks31 decks
2%synergy
Mana Confluence
16%inclusion5 decks31 decks
10%synergy
Myriad Landscape
13%inclusion4 decks31 decks
-10%synergy
Glasspool Mimic
13%inclusion4 decks31 decks
9%synergy
Thornwood Falls
13%inclusion4 decks31 decks
-5%synergy
Exotic Orchard
13%inclusion4 decks31 decks
-11%synergy
City of Brass
13%inclusion4 decks31 decks
7%synergy
Turntimber Symbiosis
10%inclusion3 decks31 decks
7%synergy
Reflecting Pool
10%inclusion3 decks31 decks
7%synergy
Path of Ancestry
10%inclusion3 decks31 decks
-8%synergy
Terramorphic Expanse
6.5%inclusion2 decks31 decks
-13%synergy
Bridgeworks Battle
6.5%inclusion2 decks31 decks
2%synergy
Gemstone Caverns
6.5%inclusion2 decks31 decks
1%synergy
Khalni Ambush
6.5%inclusion2 decks31 decks
5%synergy
Overflowing Basin
6.5%inclusion2 decks31 decks
-13%synergy
Botanical Sanctum
6.5%inclusion2 decks31 decks
-6%synergy
Lazotep Quarry
6.5%inclusion2 decks31 decks
3%synergy