Koma, Cosmos Serpent (Commander) - Budget

Koma, Cosmos Serpent
Rank #289
655decks
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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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Enchantments
Battles
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Utility Lands
Mana Artifacts
Lands
Back to Top
Vibrant Cityscape
5.5%inclusion4 decks73 decks
4%synergy
Impostor Syndrome
5.3%inclusion4 decks75 decks
3%synergy
The Clone Saga
3.8%inclusion3 decks78 decks
3%synergy
Lizard, Connors's Curse
2.7%inclusion2 decks73 decks
2%synergy
School Daze
2.7%inclusion2 decks73 decks
3%synergy
High Synergy Cards
Whelming Wave
66%inclusion431 decks655 decks
54%synergy
Junk Winder
55%inclusion359 decks655 decks
48%synergy
Koma, World-Eater
59%inclusion242 decks409 decks
46%synergy
Garruk's Packleader
42%inclusion277 decks655 decks
40%synergy
Slinn Voda, the Rising Deep
45%inclusion295 decks655 decks
38%synergy
Adrix and Nev, Twincasters
45%inclusion298 decks655 decks
37%synergy
Arixmethes, Slumbering Isle
50%inclusion327 decks655 decks
36%synergy
Urban Evolution
41%inclusion269 decks655 decks
31%synergy
Negate
57%inclusion376 decks655 decks
31%synergy
Elemental Bond
36%inclusion237 decks655 decks
31%synergy
Top Cards
Rampant Growth
71%inclusion466 decks655 decks
30%synergy
Cultivate
69%inclusion450 decks655 decks
22%synergy
Growth Spiral
63%inclusion413 decks655 decks
19%synergy
Kodama's Reach
55%inclusion361 decks655 decks
18%synergy
Counterspell
52%inclusion342 decks655 decks
2%synergy
Llanowar Elves
51%inclusion331 decks655 decks
23%synergy
Explore
50%inclusion328 decks655 decks
30%synergy
Tatyova, Benthic Druid
50%inclusion327 decks655 decks
18%synergy
Beast Within
43%inclusion284 decks655 decks
-7%synergy
Coiling Oracle
43%inclusion282 decks655 decks
30%synergy
Creatures
Murkfiend Liege
41%inclusion266 decks655 decks
25%synergy
Sakura-Tribe Elder
39%inclusion254 decks655 decks
19%synergy
Scourge of Fleets
36%inclusion237 decks655 decks
28%synergy
Elvish Mystic
35%inclusion230 decks655 decks
11%synergy
Nadir Kraken
31%inclusion203 decks655 decks
27%synergy
Esix, Fractal Bloom
31%inclusion202 decks655 decks
27%synergy
Octomancer
30%inclusion150 decks500 decks
25%synergy
Reclamation Sage
29%inclusion191 decks655 decks
15%synergy
Rampaging Baloths
27%inclusion180 decks655 decks
10%synergy
Archetype of Imagination
26%inclusion171 decks655 decks
22%synergy
Summon: Leviathan
26%inclusion50 decks194 decks
19%synergy
Stormtide Leviathan
25%inclusion167 decks655 decks
19%synergy
Xolatoyac, the Smiling Flood
25%inclusion165 decks652 decks
18%synergy
Hullbreaker Horror
25%inclusion163 decks655 decks
7%synergy
Troyan, Gutsy Explorer
24%inclusion159 decks655 decks
21%synergy
Tromokratis
22%inclusion147 decks655 decks
17%synergy
Fyndhorn Elves
22%inclusion146 decks655 decks
6%synergy
Reef Worm
21%inclusion136 decks655 decks
17%synergy
Aesi, Tyrant of Gyre Strait
20%inclusion130 decks655 decks
3%synergy
Inga and Esika
19%inclusion124 decks655 decks
16%synergy
Eternal Witness
18%inclusion121 decks655 decks
-3%synergy
Spawning Kraken
15%inclusion101 decks655 decks
8%synergy
Kiora, Sovereign of the Deep
15%inclusion101 decks655 decks
13%synergy
Starwinder
15%inclusion20 decks135 decks
8%synergy
Serpent of Yawning Depths
15%inclusion97 decks655 decks
8%synergy
Spark Double
14%inclusion93 decks655 decks
4%synergy
Simic Sky Swallower
14%inclusion92 decks655 decks
10%synergy
Hydroid Krasis
13%inclusion85 decks655 decks
5%synergy
Trygon Predator
13%inclusion84 decks655 decks
6%synergy
Avenger of Zendikar
13%inclusion83 decks655 decks
-5%synergy
Inkwell Leviathan
12%inclusion80 decks655 decks
8%synergy
Skyserpent Seeker
12%inclusion37 decks314 decks
9%synergy
Shipbreaker Kraken
12%inclusion76 decks655 decks
9%synergy
Ohran Frostfang
12%inclusion76 decks655 decks
8%synergy
Gala Greeters
11%inclusion72 decks655 decks
9%synergy
End-Raze Forerunners
11%inclusion72 decks655 decks
6%synergy
Curiosity Crafter
11%inclusion71 decks655 decks
7%synergy
Charix, the Raging Isle
11%inclusion70 decks655 decks
7%synergy
Scute Swarm
11%inclusion69 decks655 decks
-11%synergy
Nezahal, Primal Tide
10%inclusion68 decks655 decks
-1%synergy
Brinelin, the Moon Kraken
10%inclusion66 decks655 decks
6%synergy
Progenitor Mimic
10%inclusion66 decks655 decks
5%synergy
Zimone, Quandrix Prodigy
9.2%inclusion60 decks655 decks
6%synergy
Reservoir Kraken
9.0%inclusion59 decks655 decks
7%synergy
Mulldrifter
8.7%inclusion57 decks655 decks
2%synergy
Saryth, the Viper's Fang
8.7%inclusion57 decks655 decks
7%synergy
Wood Elves
8.7%inclusion57 decks655 decks
2%synergy
Monstrosity of the Lake
8.5%inclusion56 decks655 decks
6%synergy
Poison Dart Frog
8.5%inclusion56 decks655 decks
2%synergy
Verdant Sun's Avatar
8.2%inclusion54 decks655 decks
7%synergy
Instants
Return of the Wildspeaker
36%inclusion239 decks655 decks
26%synergy
Double Major
31%inclusion202 decks655 decks
22%synergy
Return to Nature
31%inclusion201 decks655 decks
25%synergy
Eureka Moment
29%inclusion193 decks655 decks
19%synergy
Simic Charm
29%inclusion192 decks655 decks
21%synergy
Harrow
23%inclusion153 decks655 decks
11%synergy
Planar Genesis
23%inclusion121 decks532 decks
12%synergy
Aetherize
22%inclusion145 decks655 decks
10%synergy
Snakeskin Veil
22%inclusion142 decks655 decks
16%synergy
Decisive Denial
21%inclusion138 decks655 decks
16%synergy
Reality Shift
21%inclusion135 decks655 decks
6%synergy
Krosan Grip
20%inclusion132 decks655 decks
12%synergy
Arcane Denial
18%inclusion117 decks655 decks
-5%synergy
Plasm Capture
17%inclusion111 decks655 decks
13%synergy
Second Harvest
17%inclusion110 decks655 decks
10%synergy
Joint Exploration
16%inclusion102 decks655 decks
10%synergy
Perplexing Test
14%inclusion90 decks655 decks
9%synergy
Disdainful Stroke
14%inclusion89 decks655 decks
12%synergy
Rapid Hybridization
13%inclusion87 decks655 decks
-13%synergy
Brainstorm
13%inclusion82 decks655 decks
-2%synergy
An Offer You Can't Refuse
12%inclusion80 decks655 decks
-10%synergy
Fact or Fiction
11%inclusion73 decks655 decks
8%synergy
Pongify
11%inclusion72 decks655 decks
-14%synergy
Opt
11%inclusion71 decks655 decks
3%synergy
Saw It Coming
11%inclusion69 decks655 decks
9%synergy
Cancel
9.5%inclusion62 decks655 decks
7%synergy
Voidslime
9.3%inclusion61 decks655 decks
4%synergy
Nature's Claim
9.2%inclusion60 decks655 decks
-1%synergy
Resculpt
8.7%inclusion57 decks655 decks
2%synergy
Auroral Procession
8.4%inclusion21 decks251 decks
5%synergy
Essence Scatter
7.8%inclusion51 decks655 decks
6%synergy
Entish Restoration
7.8%inclusion51 decks655 decks
-2%synergy
Refute
7.7%inclusion32 decks413 decks
6%synergy
Mystic Reflection
7.6%inclusion50 decks655 decks
5%synergy
Roiling Regrowth
7.5%inclusion49 decks655 decks
3%synergy
Rewind
7.5%inclusion49 decks655 decks
5%synergy
Dispel
6.9%inclusion45 decks655 decks
2%synergy
Mana Leak
6.9%inclusion45 decks655 decks
4%synergy
Repulsive Mutation
6.5%inclusion40 decks617 decks
1%synergy
Heritage Reclamation
6.4%inclusion16 decks250 decks
4%synergy
Naturalize
6.1%inclusion40 decks655 decks
4%synergy
Mystic Confluence
6.0%inclusion39 decks655 decks
3%synergy
Sublime Epiphany
6.0%inclusion39 decks655 decks
4%synergy
Spell Pierce
5.8%inclusion38 decks655 decks
2%synergy
Fog
5.5%inclusion36 decks655 decks
2%synergy
Biomass Mutation
5.5%inclusion36 decks655 decks
2%synergy
Wash Away
5.3%inclusion35 decks655 decks
4%synergy
Tamiyo's Safekeeping
5.2%inclusion34 decks655 decks
-1%synergy
Divert Disaster
5.2%inclusion7 decks135 decks
4%synergy
Sorceries
Farseek
29%inclusion191 decks655 decks
5%synergy
Harmonize
27%inclusion177 decks655 decks
21%synergy
Shamanic Revelation
24%inclusion159 decks655 decks
19%synergy
Irenicus's Vile Duplication
23%inclusion148 decks655 decks
16%synergy
Search for Tomorrow
22%inclusion146 decks655 decks
17%synergy
Migration Path
22%inclusion146 decks655 decks
19%synergy
Nature's Lore
19%inclusion127 decks655 decks
-11%synergy
Explosive Vegetation
19%inclusion124 decks655 decks
13%synergy
Overwhelming Stampede
17%inclusion109 decks655 decks
4%synergy
Ravenform
16%inclusion107 decks655 decks
12%synergy
Curse of the Swine
16%inclusion106 decks655 decks
5%synergy
Skyshroud Claim
15%inclusion101 decks655 decks
6%synergy
Distant Melody
13%inclusion87 decks655 decks
10%synergy
Overrun
12%inclusion80 decks655 decks
10%synergy
Regrowth
11%inclusion73 decks655 decks
7%synergy
Rishkar's Expertise
10%inclusion65 decks655 decks
2%synergy
Ezuri's Predation
10%inclusion65 decks655 decks
2%synergy
Preposterous Proportions
10%inclusion39 decks405 decks
8%synergy
Rite of Replication
9.5%inclusion62 decks655 decks
2%synergy
Doppelgang
9.4%inclusion58 decks617 decks
3%synergy
Broken Bond
9.2%inclusion60 decks655 decks
4%synergy
Grow from the Ashes
8.7%inclusion57 decks655 decks
7%synergy
Spitting Image
8.7%inclusion57 decks655 decks
6%synergy
Circuitous Route
8.2%inclusion54 decks655 decks
6%synergy
Vastwood Surge
6.7%inclusion44 decks655 decks
6%synergy
Finale of Revelation
6.4%inclusion42 decks655 decks
1%synergy
Nissa's Pilgrimage
6.4%inclusion42 decks655 decks
5%synergy
Three Visits
6.3%inclusion41 decks655 decks
-17%synergy
Treasure Cruise
6.3%inclusion41 decks655 decks
3%synergy
Aggressive Biomancy
5.7%inclusion30 decks529 decks
0%synergy
Preordain
5.0%inclusion33 decks655 decks
-3%synergy
Utility Artifacts
Swiftfoot Boots
38%inclusion251 decks655 decks
12%synergy
Combine Chrysalis
34%inclusion223 decks655 decks
30%synergy
Idol of Oblivion
19%inclusion123 decks655 decks
15%synergy
Bident of Thassa
11%inclusion74 decks655 decks
4%synergy
Helm of the Host
9.5%inclusion62 decks655 decks
4%synergy
Lightning Greaves
8.2%inclusion54 decks655 decks
-14%synergy
Mirror Box
7.8%inclusion51 decks655 decks
4%synergy
Wayfarer's Bauble
7.6%inclusion50 decks655 decks
6%synergy
Kefnet's Monument
6.6%inclusion43 decks655 decks
5%synergy
Symmetry Matrix
5.6%inclusion37 decks655 decks
6%synergy
Enchantments
Garruk's Uprising
31%inclusion200 decks655 decks
15%synergy
Wild Growth
22%inclusion141 decks655 decks
13%synergy
Khalni Heart Expedition
17%inclusion114 decks655 decks
13%synergy
Wilderness Reclamation
16%inclusion107 decks655 decks
7%synergy
Primal Empathy
14%inclusion90 decks655 decks
11%synergy
Ominous Seas
13%inclusion85 decks655 decks
9%synergy
Utopia Sprawl
12%inclusion76 decks655 decks
5%synergy
Moonlit Meditation
10%inclusion14 decks136 decks
9%synergy
Imprisoned in the Moon
10%inclusion67 decks655 decks
6%synergy
Kenrith's Transformation
10%inclusion63 decks655 decks
5%synergy
Verity Circle
9.5%inclusion62 decks655 decks
9%synergy
Propaganda
9.2%inclusion60 decks655 decks
3%synergy
Bounty of the Luxa
7.8%inclusion51 decks655 decks
7%synergy
Extravagant Replication
7.6%inclusion50 decks655 decks
5%synergy
Primal Vigor
7.2%inclusion47 decks655 decks
4%synergy
Fertile Ground
7.2%inclusion47 decks655 decks
5%synergy
Beastmaster Ascension
7.0%inclusion46 decks655 decks
4%synergy
Unnatural Growth
6.7%inclusion44 decks655 decks
4%synergy
Sandwurm Convergence
6.6%inclusion43 decks655 decks
4%synergy
Kindred Discovery
6.4%inclusion42 decks655 decks
-4%synergy
Glorious Sunrise
5.5%inclusion36 decks655 decks
5%synergy
Tribute to the World Tree
5.2%inclusion34 decks655 decks
-1%synergy
Levitation
5.2%inclusion34 decks655 decks
4%synergy
Battles
Invasion of Zendikar
6.1%inclusion40 decks655 decks
4%synergy
Invasion of Segovia
5.3%inclusion35 decks655 decks
5%synergy
Planeswalkers
Kiora, Behemoth Beckoner
12%inclusion76 decks655 decks
5%synergy
Kiora, the Crashing Wave
9.2%inclusion60 decks655 decks
6%synergy
Utility Lands
Reliquary Tower
35%inclusion226 decks655 decks
-16%synergy
Temple of the False God
25%inclusion166 decks655 decks
10%synergy
Mosswort Bridge
19%inclusion123 decks655 decks
1%synergy
Rogue's Passage
17%inclusion113 decks655 decks
-5%synergy
Lumbering Falls
9.2%inclusion60 decks655 decks
2%synergy
Restless Vinestalk
8.1%inclusion53 decks655 decks
2%synergy
Coral Atoll
6.1%inclusion40 decks655 decks
3%synergy
Lonely Sandbar
6.0%inclusion39 decks655 decks
2%synergy
Jungle Basin
5.3%inclusion35 decks655 decks
3%synergy
Tranquil Thicket
5.2%inclusion34 decks655 decks
1%synergy
Mana Artifacts
Sol Ring
78%inclusion514 decks655 decks
-2%synergy
Arcane Signet
66%inclusion432 decks655 decks
3%synergy
Simic Signet
53%inclusion344 decks655 decks
20%synergy
Talisman of Curiosity
30%inclusion196 decks655 decks
9%synergy
Commander's Sphere
28%inclusion182 decks655 decks
19%synergy
Thought Vessel
18%inclusion117 decks655 decks
-2%synergy
Mind Stone
14%inclusion89 decks655 decks
9%synergy
Moss Diamond
9.0%inclusion59 decks655 decks
8%synergy
Fellwar Stone
8.9%inclusion58 decks655 decks
-1%synergy
Sky Diamond
7.2%inclusion47 decks655 decks
6%synergy
Decanter of Endless Water
5.8%inclusion38 decks655 decks
0%synergy
Lands
Island
99%inclusion649 decks655 decks
4%synergy
Forest
99%inclusion646 decks655 decks
3%synergy
Command Tower
76%inclusion501 decks655 decks
-9%synergy
Simic Growth Chamber
58%inclusion379 decks655 decks
9%synergy
Temple of Mystery
50%inclusion325 decks655 decks
11%synergy
Thornwood Falls
47%inclusion310 decks655 decks
29%synergy
Evolving Wilds
43%inclusion281 decks655 decks
18%synergy
Yavimaya Coast
42%inclusion272 decks655 decks
-11%synergy
Hinterland Harbor
38%inclusion252 decks655 decks
-21%synergy
Vineglimmer Snarl
37%inclusion242 decks655 decks
-2%synergy
Myriad Landscape
35%inclusion232 decks655 decks
13%synergy
Simic Guildgate
29%inclusion188 decks655 decks
18%synergy
Exotic Orchard
28%inclusion186 decks655 decks
4%synergy
Flooded Grove
27%inclusion180 decks655 decks
-13%synergy
Terramorphic Expanse
27%inclusion177 decks655 decks
7%synergy
Tangled Islet
25%inclusion163 decks655 decks
8%synergy
Overflowing Basin
17%inclusion104 decks596 decks
-2%synergy
Rimewood Falls
17%inclusion113 decks655 decks
8%synergy
Path of Ancestry
17%inclusion111 decks655 decks
-1%synergy
Blighted Woodland
15%inclusion98 decks655 decks
7%synergy
Woodland Stream
15%inclusion98 decks655 decks
10%synergy
Dreamroot Cascade
15%inclusion97 decks655 decks
-27%synergy
Quandrix Campus
12%inclusion79 decks655 decks
5%synergy
Lush Oasis
10%inclusion60 decks577 decks
4%synergy
Littjara Mirrorlake
9.0%inclusion59 decks655 decks
5%synergy
Waterlogged Grove
7.3%inclusion48 decks655 decks
-13%synergy
Barkchannel Pathway
5.6%inclusion37 decks655 decks
-15%synergy
Rejuvenating Springs
5.6%inclusion37 decks655 decks
-38%synergy
Botanical Sanctum
5.3%inclusion35 decks655 decks
-7%synergy
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