Koma, Cosmos Serpent (Commander) - Expensive Core

Koma, Cosmos Serpent
Rank #289
60decks
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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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Chameleon, Master of Disguise
11%inclusion1 decks9 decks
9%synergy
Impostor Syndrome
11%inclusion1 decks9 decks
9%synergy
The Terror of Serpent's Pass
9.1%inclusion1 decks11 decks
9%synergy
High Synergy Cards
Adrix and Nev, Twincasters
85%inclusion51 decks60 decks
76%synergy
Junk Winder
77%inclusion46 decks60 decks
70%synergy
Parallel Lives
72%inclusion43 decks60 decks
66%synergy
Whelming Wave
77%inclusion46 decks60 decks
65%synergy
Elemental Bond
70%inclusion42 decks60 decks
64%synergy
Serpent of Yawning Depths
70%inclusion42 decks60 decks
64%synergy
Aesi, Tyrant of Gyre Strait
80%inclusion48 decks60 decks
63%synergy
Spark Double
72%inclusion43 decks60 decks
62%synergy
Koma, World-Eater
75%inclusion33 decks44 decks
61%synergy
Spawning Kraken
68%inclusion41 decks60 decks
61%synergy
Top Cards
Cultivate
83%inclusion50 decks60 decks
36%synergy
Kodama's Reach
80%inclusion48 decks60 decks
43%synergy
Counterspell
78%inclusion47 decks60 decks
28%synergy
Three Visits
72%inclusion43 decks60 decks
49%synergy
Nature's Lore
70%inclusion42 decks60 decks
40%synergy
Beast Within
68%inclusion41 decks60 decks
18%synergy
Rampant Growth
67%inclusion40 decks60 decks
26%synergy
Doubling Season
65%inclusion39 decks60 decks
55%synergy
Birds of Paradise
65%inclusion39 decks60 decks
37%synergy
Sakashima of a Thousand Faces
65%inclusion39 decks60 decks
60%synergy
Game Changers
Seedborn Muse
18%inclusion11 decks60 decks
3%synergy
Consecrated Sphinx
15%inclusion9 decks60 decks
6%synergy
Worldly Tutor
8.3%inclusion5 decks60 decks
-7%synergy
Fierce Guardianship
6.7%inclusion4 decks60 decks
-11%synergy
Rhystic Study
5.0%inclusion3 decks60 decks
-17%synergy
Cyclonic Rift
5.0%inclusion3 decks60 decks
-22%synergy
Creatures
Sakashima the Impostor
53%inclusion32 decks60 decks
51%synergy
Arixmethes, Slumbering Isle
50%inclusion30 decks60 decks
37%synergy
Murkfiend Liege
48%inclusion29 decks60 decks
33%synergy
Llanowar Elves
47%inclusion28 decks60 decks
19%synergy
Elvish Mystic
43%inclusion26 decks60 decks
19%synergy
Roaming Throne
43%inclusion26 decks60 decks
35%synergy
Summon: Leviathan
43%inclusion9 decks21 decks
36%synergy
Sakura-Tribe Elder
42%inclusion25 decks60 decks
22%synergy
Tatyova, Benthic Druid
40%inclusion24 decks60 decks
8%synergy
Hullbreaker Horror
35%inclusion21 decks60 decks
17%synergy
Garruk's Packleader
33%inclusion20 decks60 decks
31%synergy
Enduring Vitality
33%inclusion16 decks49 decks
25%synergy
Eternal Witness
30%inclusion18 decks60 decks
9%synergy
Slinn Voda, the Rising Deep
30%inclusion18 decks60 decks
23%synergy
Fyndhorn Elves
28%inclusion17 decks60 decks
12%synergy
Esix, Fractal Bloom
27%inclusion16 decks60 decks
23%synergy
Ohran Frostfang
27%inclusion16 decks60 decks
23%synergy
Craterhoof Behemoth
25%inclusion15 decks60 decks
16%synergy
Fanatic of Rhonas
25%inclusion13 decks53 decks
19%synergy
Octomancer
22%inclusion11 decks50 decks
17%synergy
Curiosity Crafter
22%inclusion13 decks60 decks
18%synergy
Xolatoyac, the Smiling Flood
20%inclusion12 decks60 decks
12%synergy
Nezahal, Primal Tide
20%inclusion12 decks60 decks
9%synergy
Coiling Oracle
18%inclusion11 decks60 decks
5%synergy
Archetype of Imagination
18%inclusion11 decks60 decks
14%synergy
Scute Swarm
17%inclusion10 decks60 decks
-4%synergy
Clever Impersonator
17%inclusion10 decks60 decks
12%synergy
Delighted Halfling
17%inclusion10 decks60 decks
5%synergy
Avenger of Zendikar
17%inclusion10 decks60 decks
-1%synergy
Tireless Provisioner
17%inclusion10 decks60 decks
1%synergy
Enduring Curiosity
16%inclusion8 decks49 decks
13%synergy
Scourge of Fleets
15%inclusion9 decks60 decks
7%synergy
Nadir Kraken
15%inclusion9 decks60 decks
11%synergy
Lotus Cobra
15%inclusion9 decks60 decks
1%synergy
Kiora, Sovereign of the Deep
15%inclusion9 decks60 decks
13%synergy
Glasspool Mimic
15%inclusion9 decks60 decks
11%synergy
Phyrexian Metamorph
15%inclusion9 decks60 decks
7%synergy
Auton Soldier
15%inclusion9 decks60 decks
13%synergy
Uro, Titan of Nature's Wrath
15%inclusion9 decks60 decks
5%synergy
Progenitor Mimic
13%inclusion8 decks60 decks
9%synergy
Troyan, Gutsy Explorer
12%inclusion7 decks60 decks
8%synergy
Azusa, Lost but Seeking
12%inclusion7 decks60 decks
-3%synergy
Toski, Bearer of Secrets
12%inclusion7 decks60 decks
8%synergy
Kona, Rescue Beastie
10%inclusion5 decks49 decks
9%synergy
Circle of Dreams Druid
10%inclusion6 decks60 decks
8%synergy
Reclamation Sage
10%inclusion6 decks60 decks
-5%synergy
Inga and Esika
10%inclusion6 decks60 decks
7%synergy
Saryth, the Viper's Fang
10%inclusion6 decks60 decks
8%synergy
Sin, Unending Cataclysm
10%inclusion2 decks21 decks
6%synergy
Loot, Exuberant Explorer
9.3%inclusion4 decks43 decks
2%synergy
Instants
Heroic Intervention
63%inclusion38 decks60 decks
33%synergy
Growth Spiral
57%inclusion34 decks60 decks
12%synergy
Double Major
47%inclusion28 decks60 decks
38%synergy
Second Harvest
43%inclusion26 decks60 decks
37%synergy
An Offer You Can't Refuse
42%inclusion25 decks60 decks
19%synergy
Negate
42%inclusion25 decks60 decks
15%synergy
Pongify
40%inclusion24 decks60 decks
15%synergy
Arcane Denial
37%inclusion22 decks60 decks
14%synergy
Rapid Hybridization
35%inclusion21 decks60 decks
9%synergy
Mana Drain
33%inclusion20 decks60 decks
18%synergy
Return of the Wildspeaker
32%inclusion19 decks60 decks
21%synergy
Swan Song
28%inclusion17 decks60 decks
9%synergy
Brainstorm
20%inclusion12 decks60 decks
6%synergy
Nature's Claim
18%inclusion11 decks60 decks
8%synergy
Simic Charm
18%inclusion11 decks60 decks
10%synergy
Reality Shift
17%inclusion10 decks60 decks
2%synergy
Tamiyo's Safekeeping
15%inclusion9 decks60 decks
9%synergy
Krosan Grip
13%inclusion8 decks60 decks
5%synergy
Planar Genesis
13%inclusion7 decks53 decks
2%synergy
Sublime Epiphany
12%inclusion7 decks60 decks
10%synergy
Entish Restoration
10%inclusion6 decks60 decks
1%synergy
Voidslime
10%inclusion6 decks60 decks
5%synergy
Stubborn Denial
10%inclusion6 decks60 decks
7%synergy
Tyvar's Stand
10%inclusion6 decks60 decks
7%synergy
Mystic Reflection
10%inclusion6 decks60 decks
7%synergy
Sink into Stupor
9.4%inclusion5 decks53 decks
-2%synergy
Chord of Calling
8.3%inclusion5 decks60 decks
1%synergy
Return to Nature
8.3%inclusion5 decks60 decks
3%synergy
Harrow
8.3%inclusion5 decks60 decks
-4%synergy
Biosynthic Burst
7.7%inclusion1 decks13 decks
7%synergy
Collective Resistance
7.5%inclusion4 decks53 decks
4%synergy
Noxious Revival
6.7%inclusion4 decks60 decks
0%synergy
Tifa's Limit Break
5.3%inclusion1 decks19 decks
5%synergy
Force of Vigor
5.0%inclusion3 decks60 decks
0%synergy
Perplexing Test
5.0%inclusion3 decks60 decks
0%synergy
Disallow
5.0%inclusion3 decks60 decks
3%synergy
Jwari Disruption
5.0%inclusion3 decks60 decks
4%synergy
Eureka Moment
5.0%inclusion3 decks60 decks
-6%synergy
See Double
5.0%inclusion3 decks60 decks
3%synergy
Resculpt
5.0%inclusion3 decks60 decks
-1%synergy
Cackling Counterpart
5.0%inclusion3 decks60 decks
2%synergy
Snakeskin Veil
5.0%inclusion3 decks60 decks
-1%synergy
Sorceries
Irenicus's Vile Duplication
63%inclusion38 decks60 decks
57%synergy
Farseek
50%inclusion30 decks60 decks
26%synergy
Skyshroud Claim
47%inclusion28 decks60 decks
37%synergy
Quantum Misalignment
35%inclusion21 decks60 decks
32%synergy
Rite of Replication
28%inclusion17 decks60 decks
21%synergy
Explore
22%inclusion13 decks60 decks
1%synergy
Rishkar's Expertise
20%inclusion12 decks60 decks
12%synergy
Overwhelming Stampede
18%inclusion11 decks60 decks
6%synergy
Triumph of the Hordes
17%inclusion10 decks60 decks
14%synergy
Bala Ged Recovery
17%inclusion10 decks60 decks
7%synergy
Finale of Devastation
15%inclusion9 decks60 decks
3%synergy
Urban Evolution
12%inclusion7 decks60 decks
2%synergy
Ponder
10%inclusion6 decks60 decks
3%synergy
Shamanic Revelation
10%inclusion6 decks60 decks
4%synergy
Migration Path
10%inclusion6 decks60 decks
7%synergy
Bridgeworks Battle
9.4%inclusion5 decks53 decks
5%synergy
Doppelgang
8.8%inclusion5 decks57 decks
2%synergy
Raise the Palisade
8.3%inclusion5 decks60 decks
2%synergy
Quasiduplicate
8.3%inclusion5 decks60 decks
6%synergy
Aggressive Biomancy
7.5%inclusion4 decks53 decks
2%synergy
Green Sun's Zenith
6.7%inclusion4 decks60 decks
-2%synergy
Into the North
6.7%inclusion4 decks60 decks
6%synergy
Ezuri's Predation
6.7%inclusion4 decks60 decks
-1%synergy
Open the Way
6.7%inclusion4 decks60 decks
4%synergy
Tempt with Discovery
6.7%inclusion4 decks60 decks
3%synergy
Curse of the Swine
6.7%inclusion4 decks60 decks
-5%synergy
Preordain
6.7%inclusion4 decks60 decks
-2%synergy
Last March of the Ents
6.7%inclusion4 decks60 decks
3%synergy
Sea Gate Restoration
6.7%inclusion4 decks60 decks
1%synergy
Awaken the Woods
5.0%inclusion3 decks60 decks
0%synergy
Regrowth
5.0%inclusion3 decks60 decks
1%synergy
Croaking Counterpart
5.0%inclusion3 decks60 decks
0%synergy
Replication Technique
5.0%inclusion3 decks60 decks
2%synergy
Broken Bond
5.0%inclusion3 decks60 decks
0%synergy
Explosive Vegetation
5.0%inclusion3 decks60 decks
-1%synergy
Distant Melody
5.0%inclusion3 decks60 decks
2%synergy
Body of Research
5.0%inclusion3 decks60 decks
3%synergy
Utility Artifacts
Helm of the Host
60%inclusion36 decks60 decks
55%synergy
Lightning Greaves
52%inclusion31 decks60 decks
30%synergy
Swiftfoot Boots
47%inclusion28 decks60 decks
21%synergy
Combine Chrysalis
30%inclusion18 decks60 decks
26%synergy
Eldrazi Monument
20%inclusion12 decks60 decks
19%synergy
The Great Henge
18%inclusion11 decks60 decks
9%synergy
Idol of Oblivion
17%inclusion10 decks60 decks
13%synergy
Mirror Box
15%inclusion9 decks60 decks
11%synergy
Sapphire Medallion
15%inclusion9 decks60 decks
12%synergy
Emerald Medallion
13%inclusion8 decks60 decks
10%synergy
Bident of Thassa
12%inclusion7 decks60 decks
4%synergy
Mirror Gallery
8.3%inclusion5 decks60 decks
8%synergy
Lithoform Engine
6.7%inclusion4 decks60 decks
6%synergy
Coat of Arms
5.0%inclusion3 decks60 decks
4%synergy
Shadowspear
5.0%inclusion3 decks60 decks
4%synergy
Crucible of Worlds
5.0%inclusion3 decks60 decks
0%synergy
Skullclamp
5.0%inclusion3 decks60 decks
4%synergy
Enchantments
Tribute to the World Tree
50%inclusion30 decks60 decks
43%synergy
Kindred Discovery
35%inclusion21 decks60 decks
25%synergy
Mystic Remora
27%inclusion16 decks60 decks
11%synergy
Primal Vigor
25%inclusion15 decks60 decks
22%synergy
Garruk's Uprising
23%inclusion14 decks60 decks
8%synergy
Growing Rites of Itlimoc
22%inclusion13 decks60 decks
16%synergy
Exploration
18%inclusion11 decks60 decks
5%synergy
Sylvan Library
17%inclusion10 decks60 decks
7%synergy
Defense of the Heart
15%inclusion9 decks60 decks
13%synergy
Beastmaster Ascension
15%inclusion9 decks60 decks
12%synergy
Wild Growth
13%inclusion8 decks60 decks
5%synergy
Extravagant Replication
12%inclusion7 decks60 decks
9%synergy
Asceticism
12%inclusion7 decks60 decks
8%synergy
Kenrith's Transformation
12%inclusion7 decks60 decks
7%synergy
Utopia Sprawl
12%inclusion7 decks60 decks
5%synergy
Cryptolith Rite
12%inclusion7 decks60 decks
9%synergy
Unnatural Growth
10%inclusion6 decks60 decks
7%synergy
Wilderness Reclamation
8.3%inclusion5 decks60 decks
-1%synergy
Propaganda
8.3%inclusion5 decks60 decks
2%synergy
Imprisoned in the Moon
8.3%inclusion5 decks60 decks
4%synergy
Paradox Haze
8.3%inclusion5 decks60 decks
8%synergy
Mirror Room // Fractured Realm
8.2%inclusion4 decks49 decks
7%synergy
Moonlit Meditation
7.1%inclusion1 decks14 decks
6%synergy
Kiora Bests the Sea God
6.7%inclusion4 decks60 decks
5%synergy
Zendikar Resurgent
6.7%inclusion4 decks60 decks
4%synergy
Walk-In Closet // Forgotten Cellar
6.1%inclusion3 decks49 decks
3%synergy
Up the Beanstalk
5.0%inclusion3 decks60 decks
1%synergy
Opposition
5.0%inclusion3 decks60 decks
5%synergy
Burgeoning
5.0%inclusion3 decks60 decks
-2%synergy
Mana Reflection
5.0%inclusion3 decks60 decks
0%synergy
Battles
Invasion of Segovia
5.0%inclusion3 decks60 decks
4%synergy
Planeswalkers
Oko, Thief of Crowns
23%inclusion14 decks60 decks
16%synergy
Kiora, the Crashing Wave
10%inclusion6 decks60 decks
7%synergy
Utility Lands
Reliquary Tower
63%inclusion38 decks60 decks
13%synergy
Boseiju, Who Endures
40%inclusion24 decks60 decks
18%synergy
Yavimaya, Cradle of Growth
37%inclusion22 decks60 decks
15%synergy
Otawara, Soaring City
32%inclusion19 decks60 decks
13%synergy
Three Tree City
26%inclusion13 decks50 decks
21%synergy
Evendo, Waking Haven
25%inclusion4 decks16 decks
20%synergy
Command Beacon
22%inclusion13 decks60 decks
18%synergy
Castle Garenbrig
20%inclusion12 decks60 decks
15%synergy
Mystic Sanctuary
20%inclusion12 decks60 decks
7%synergy
Temple of the False God
18%inclusion11 decks60 decks
3%synergy
Mosswort Bridge
18%inclusion11 decks60 decks
1%synergy
Rogue's Passage
15%inclusion9 decks60 decks
-7%synergy
Alchemist's Refuge
15%inclusion9 decks60 decks
-3%synergy
Restless Vinestalk
10%inclusion6 decks60 decks
4%synergy
Castle Vantress
8.3%inclusion5 decks60 decks
1%synergy
Mistrise Village
8.0%inclusion2 decks25 decks
-2%synergy
Lumbering Falls
6.7%inclusion4 decks60 decks
0%synergy
Nykthos, Shrine to Nyx
6.7%inclusion4 decks60 decks
4%synergy
Thespian's Stage
6.7%inclusion4 decks60 decks
0%synergy
Rivendell
5.0%inclusion3 decks60 decks
-1%synergy
Balamb Garden, SeeD Academy
5.0%inclusion1 decks20 decks
4%synergy
Mana Artifacts
Sol Ring
93%inclusion56 decks60 decks
13%synergy
Arcane Signet
70%inclusion42 decks60 decks
7%synergy
Simic Signet
38%inclusion23 decks60 decks
6%synergy
Thought Vessel
37%inclusion22 decks60 decks
16%synergy
Talisman of Curiosity
25%inclusion15 decks60 decks
4%synergy
Commander's Sphere
6.7%inclusion4 decks60 decks
-2%synergy
Decanter of Endless Water
6.7%inclusion4 decks60 decks
1%synergy
Fellwar Stone
6.7%inclusion4 decks60 decks
-3%synergy
Midnight Clock
5.0%inclusion3 decks60 decks
3%synergy
Lands
Island
88%inclusion53 decks60 decks
-7%synergy
Forest
88%inclusion53 decks60 decks
-7%synergy
Command Tower
87%inclusion52 decks60 decks
1%synergy
Breeding Pool
78%inclusion47 decks60 decks
33%synergy
Rejuvenating Springs
75%inclusion45 decks60 decks
31%synergy
Hinterland Harbor
68%inclusion41 decks60 decks
9%synergy
Dreamroot Cascade
65%inclusion39 decks60 decks
24%synergy
Yavimaya Coast
53%inclusion32 decks60 decks
1%synergy
Misty Rainforest
53%inclusion32 decks60 decks
22%synergy
Simic Growth Chamber
50%inclusion30 decks60 decks
1%synergy
Vineglimmer Snarl
45%inclusion27 decks60 decks
6%synergy
Flooded Grove
43%inclusion26 decks60 decks
3%synergy
Barkchannel Pathway
42%inclusion25 decks60 decks
21%synergy
Hedge Maze
35%inclusion20 decks57 decks
16%synergy
Temple of Mystery
33%inclusion20 decks60 decks
-5%synergy
Tropical Island
28%inclusion17 decks60 decks
14%synergy
Rimewood Falls
28%inclusion17 decks60 decks
19%synergy
Willowrush Verge
27%inclusion9 decks33 decks
12%synergy
Fabled Passage
25%inclusion15 decks60 decks
11%synergy
Myriad Landscape
23%inclusion14 decks60 decks
1%synergy
Tangled Islet
22%inclusion13 decks60 decks
5%synergy
Waterlogged Grove
22%inclusion13 decks60 decks
1%synergy
Exotic Orchard
18%inclusion11 decks60 decks
-6%synergy
Evolving Wilds
17%inclusion10 decks60 decks
-9%synergy
Bala Ged Recovery
17%inclusion10 decks60 decks
7%synergy
Glasspool Mimic
15%inclusion9 decks60 decks
11%synergy
Terramorphic Expanse
15%inclusion9 decks60 decks
-5%synergy
Path of Ancestry
15%inclusion9 decks60 decks
-3%synergy
Snow-Covered Island
13%inclusion8 decks60 decks
6%synergy
Snow-Covered Forest
13%inclusion8 decks60 decks
6%synergy
Botanical Sanctum
13%inclusion8 decks60 decks
1%synergy
Overflowing Basin
12%inclusion7 decks57 decks
-7%synergy
Wooded Foothills
12%inclusion7 decks60 decks
2%synergy
Thornwood Falls
12%inclusion7 decks60 decks
-6%synergy
Blighted Woodland
12%inclusion7 decks60 decks
4%synergy
Littjara Mirrorlake
12%inclusion7 decks60 decks
8%synergy
Bridgeworks Battle
9.4%inclusion5 decks53 decks
5%synergy
Sink into Stupor
9.4%inclusion5 decks53 decks
-2%synergy
Prismatic Vista
8.3%inclusion5 decks60 decks
1%synergy
Windswept Heath
8.3%inclusion5 decks60 decks
-2%synergy
Cavern of Souls
8.3%inclusion5 decks60 decks
2%synergy
Polluted Delta
8.3%inclusion5 decks60 decks
-2%synergy
Scalding Tarn
6.7%inclusion4 decks60 decks
-3%synergy
Verdant Catacombs
6.7%inclusion4 decks60 decks
-3%synergy
Tanglepool Bridge
6.7%inclusion4 decks60 decks
2%synergy
Sea Gate Restoration
6.7%inclusion4 decks60 decks
1%synergy
Flooded Strand
6.7%inclusion4 decks60 decks
-4%synergy
Lush Oasis
5.5%inclusion3 decks55 decks
-1%synergy
Jwari Disruption
5.0%inclusion3 decks60 decks
4%synergy
Woodland Stream
5.0%inclusion3 decks60 decks
0%synergy
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