Koma, Cosmos Serpent (Commander) - Budget Upgraded

Koma, Cosmos Serpent
Rank #289
31decks
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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
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Utility Lands
Mana Artifacts
Lands
Back to Top
Vibrant Cityscape
14%inclusion1 decks7 decks
13%synergy
High Synergy Cards
Whelming Wave
71%inclusion22 decks31 decks
60%synergy
Scourge of Fleets
52%inclusion16 decks31 decks
43%synergy
Koma, World-Eater
57%inclusion17 decks30 decks
43%synergy
Junk Winder
48%inclusion15 decks31 decks
42%synergy
Arixmethes, Slumbering Isle
55%inclusion17 decks31 decks
41%synergy
Slinn Voda, the Rising Deep
42%inclusion13 decks31 decks
35%synergy
Adrix and Nev, Twincasters
42%inclusion13 decks31 decks
33%synergy
Nadir Kraken
35%inclusion11 decks31 decks
31%synergy
Summon: Leviathan
38%inclusion8 decks21 decks
31%synergy
Murkfiend Liege
45%inclusion14 decks31 decks
30%synergy
Top Cards
Rampant Growth
68%inclusion21 decks31 decks
27%synergy
Tatyova, Benthic Druid
55%inclusion17 decks31 decks
23%synergy
Counterspell
52%inclusion16 decks31 decks
1%synergy
Kodama's Reach
52%inclusion16 decks31 decks
15%synergy
Llanowar Elves
52%inclusion16 decks31 decks
24%synergy
Cultivate
48%inclusion15 decks31 decks
1%synergy
Beast Within
48%inclusion15 decks31 decks
-2%synergy
Growth Spiral
45%inclusion14 decks31 decks
1%synergy
Rampaging Baloths
39%inclusion12 decks31 decks
22%synergy
Sakura-Tribe Elder
39%inclusion12 decks31 decks
19%synergy
Game Changers
Seedborn Muse
16%inclusion5 decks31 decks
0%synergy
Creatures
Aesi, Tyrant of Gyre Strait
35%inclusion11 decks31 decks
19%synergy
Stormtide Leviathan
35%inclusion11 decks31 decks
29%synergy
Coiling Oracle
35%inclusion11 decks31 decks
22%synergy
Elvish Mystic
32%inclusion10 decks31 decks
8%synergy
Esix, Fractal Bloom
32%inclusion10 decks31 decks
28%synergy
Garruk's Packleader
32%inclusion10 decks31 decks
30%synergy
Simic Sky Swallower
29%inclusion9 decks31 decks
25%synergy
Starwinder
29%inclusion4 decks14 decks
22%synergy
Xolatoyac, the Smiling Flood
26%inclusion8 decks31 decks
18%synergy
Archetype of Imagination
26%inclusion8 decks31 decks
21%synergy
Hullbreaker Horror
26%inclusion8 decks31 decks
8%synergy
Reclamation Sage
26%inclusion8 decks31 decks
11%synergy
Inkwell Leviathan
26%inclusion8 decks31 decks
21%synergy
Spawning Kraken
26%inclusion8 decks31 decks
18%synergy
Eternal Witness
23%inclusion7 decks31 decks
1%synergy
Fyndhorn Elves
23%inclusion7 decks31 decks
7%synergy
Avenger of Zendikar
23%inclusion7 decks31 decks
4%synergy
Tromokratis
23%inclusion7 decks31 decks
17%synergy
Stormsurge Kraken
19%inclusion6 decks31 decks
15%synergy
Hydroid Krasis
19%inclusion6 decks31 decks
11%synergy
Sin, Unending Cataclysm
19%inclusion4 decks21 decks
16%synergy
Rashmi, Eternities Crafter
16%inclusion5 decks31 decks
13%synergy
Troyan, Gutsy Explorer
16%inclusion5 decks31 decks
13%synergy
Chasm Skulker
16%inclusion5 decks31 decks
10%synergy
Shipbreaker Kraken
16%inclusion5 decks31 decks
13%synergy
Octomancer
16%inclusion5 decks31 decks
11%synergy
Ohran Frostfang
16%inclusion5 decks31 decks
12%synergy
Serpent of Yawning Depths
16%inclusion5 decks31 decks
10%synergy
Fierce Empath
16%inclusion5 decks31 decks
13%synergy
Terastodon
13%inclusion4 decks31 decks
5%synergy
Scute Swarm
13%inclusion4 decks31 decks
-8%synergy
Imoti, Celebrant of Bounty
13%inclusion4 decks31 decks
9%synergy
Solemn Simulacrum
13%inclusion4 decks31 decks
7%synergy
Brinelin, the Moon Kraken
13%inclusion4 decks31 decks
9%synergy
Topiary Stomper
13%inclusion4 decks31 decks
10%synergy
Mystic Snake
13%inclusion4 decks31 decks
9%synergy
Inga and Esika
13%inclusion4 decks31 decks
10%synergy
Elder Deep-Fiend
13%inclusion4 decks31 decks
11%synergy
Champion of Lambholt
13%inclusion4 decks31 decks
8%synergy
Mossborn Hydra
10%inclusion3 decks30 decks
2%synergy
Sea-Dasher Octopus
10%inclusion3 decks31 decks
7%synergy
Thryx, the Sudden Storm
10%inclusion3 decks31 decks
7%synergy
Farhaven Elf
10%inclusion3 decks31 decks
5%synergy
Spark Double
10%inclusion3 decks31 decks
0%synergy
Kiora, Sovereign of the Deep
10%inclusion3 decks31 decks
8%synergy
Lorthos, the Tidemaker
10%inclusion3 decks31 decks
6%synergy
Kiora's Follower
10%inclusion3 decks31 decks
-6%synergy
Outcaster Trailblazer
10%inclusion3 decks31 decks
9%synergy
Caustic Caterpillar
10%inclusion3 decks31 decks
9%synergy
Yavimaya Elder
10%inclusion3 decks31 decks
7%synergy
Instants
Negate
39%inclusion12 decks31 decks
13%synergy
Reality Shift
35%inclusion11 decks31 decks
21%synergy
Return of the Wildspeaker
32%inclusion10 decks31 decks
22%synergy
Harrow
29%inclusion9 decks31 decks
17%synergy
Brainstorm
23%inclusion7 decks31 decks
8%synergy
Aetherize
23%inclusion7 decks31 decks
11%synergy
An Offer You Can't Refuse
23%inclusion7 decks31 decks
0%synergy
Planar Genesis
19%inclusion6 decks31 decks
8%synergy
Arcane Denial
19%inclusion6 decks31 decks
-3%synergy
Simic Charm
19%inclusion6 decks31 decks
11%synergy
Double Major
19%inclusion6 decks31 decks
11%synergy
Plasm Capture
16%inclusion5 decks31 decks
13%synergy
Perplexing Test
16%inclusion5 decks31 decks
11%synergy
Decisive Denial
16%inclusion5 decks31 decks
11%synergy
Second Harvest
16%inclusion5 decks31 decks
10%synergy
Prishe's Wanderings
15%inclusion3 decks20 decks
14%synergy
Fog
13%inclusion4 decks31 decks
10%synergy
Roiling Regrowth
13%inclusion4 decks31 decks
9%synergy
Entish Restoration
13%inclusion4 decks31 decks
3%synergy
Cancel
13%inclusion4 decks31 decks
11%synergy
Rewind
13%inclusion4 decks31 decks
10%synergy
Pongify
13%inclusion4 decks31 decks
-12%synergy
Sublime Epiphany
13%inclusion4 decks31 decks
11%synergy
Refute
10%inclusion3 decks30 decks
8%synergy
Krosan Grip
10%inclusion3 decks31 decks
1%synergy
Return to Nature
10%inclusion3 decks31 decks
4%synergy
Slip Out the Back
10%inclusion3 decks31 decks
6%synergy
Mystic Confluence
10%inclusion3 decks31 decks
7%synergy
High Tide
10%inclusion3 decks31 decks
8%synergy
Rapid Hybridization
10%inclusion3 decks31 decks
-17%synergy
Eureka Moment
10%inclusion3 decks31 decks
-1%synergy
Jaheira's Respite
10%inclusion3 decks31 decks
8%synergy
Mystical Dispute
10%inclusion3 decks31 decks
9%synergy
Barrier Breach
10%inclusion3 decks31 decks
9%synergy
Nature's Claim
10%inclusion3 decks31 decks
-1%synergy
Resculpt
10%inclusion3 decks31 decks
3%synergy
Joint Exploration
10%inclusion3 decks31 decks
4%synergy
Spell Pierce
10%inclusion3 decks31 decks
6%synergy
Snakeskin Veil
10%inclusion3 decks31 decks
4%synergy
Mystic Reflection
10%inclusion3 decks31 decks
7%synergy
Voidslime
10%inclusion3 decks31 decks
5%synergy
Auroral Procession
8.0%inclusion2 decks25 decks
4%synergy
Unravel
7.1%inclusion1 decks14 decks
7%synergy
Heroic Intervention
6.5%inclusion2 decks31 decks
-24%synergy
Essence Scatter
6.5%inclusion2 decks31 decks
5%synergy
Capsize
6.5%inclusion2 decks31 decks
5%synergy
Blessed Respite
6.5%inclusion2 decks31 decks
5%synergy
Noxious Revival
6.5%inclusion2 decks31 decks
0%synergy
Collective Resistance
6.5%inclusion2 decks31 decks
3%synergy
Lull
6.5%inclusion2 decks31 decks
6%synergy
Sorceries
Explore
35%inclusion11 decks31 decks
15%synergy
Urban Evolution
35%inclusion11 decks31 decks
26%synergy
Farseek
29%inclusion9 decks31 decks
5%synergy
Curse of the Swine
19%inclusion6 decks31 decks
8%synergy
Grow from the Ashes
19%inclusion6 decks31 decks
18%synergy
Spitting Image
19%inclusion6 decks31 decks
17%synergy
Nature's Lore
16%inclusion5 decks31 decks
-14%synergy
Harmonize
16%inclusion5 decks31 decks
10%synergy
Relm's Sketching
14%inclusion3 decks21 decks
13%synergy
Search for Tomorrow
13%inclusion4 decks31 decks
8%synergy
Irenicus's Vile Duplication
13%inclusion4 decks31 decks
7%synergy
River's Rebuke
13%inclusion4 decks31 decks
10%synergy
Shamanic Revelation
13%inclusion4 decks31 decks
7%synergy
Rite of Replication
13%inclusion4 decks31 decks
6%synergy
Overwhelming Stampede
13%inclusion4 decks31 decks
1%synergy
Preposterous Proportions
10%inclusion3 decks30 decks
9%synergy
Skyshroud Claim
10%inclusion3 decks31 decks
0%synergy
Ezuri's Predation
10%inclusion3 decks31 decks
2%synergy
Ponder
10%inclusion3 decks31 decks
3%synergy
Oversimplify
10%inclusion3 decks31 decks
6%synergy
Preordain
10%inclusion3 decks31 decks
1%synergy
Circuitous Route
10%inclusion3 decks31 decks
8%synergy
Rishkar's Expertise
10%inclusion3 decks31 decks
1%synergy
Explosive Vegetation
10%inclusion3 decks31 decks
4%synergy
Nature's Rhythm
8.0%inclusion2 decks25 decks
2%synergy
Pull Through the Weft
7.1%inclusion1 decks14 decks
7%synergy
Three Visits
6.5%inclusion2 decks31 decks
-17%synergy
Gitaxian Probe
6.5%inclusion2 decks31 decks
4%synergy
Wear Down
6.5%inclusion2 decks31 decks
5%synergy
Tempt with Discovery
6.5%inclusion2 decks31 decks
2%synergy
Treasure Cruise
6.5%inclusion2 decks31 decks
3%synergy
Flood of Tears
6.5%inclusion2 decks31 decks
4%synergy
Wash Out
6.5%inclusion2 decks31 decks
6%synergy
Deep Analysis
6.5%inclusion2 decks31 decks
5%synergy
Bridgeworks Battle
6.5%inclusion2 decks31 decks
2%synergy
Broken Bond
6.5%inclusion2 decks31 decks
1%synergy
Migration Path
6.5%inclusion2 decks31 decks
3%synergy
Body of Research
6.5%inclusion2 decks31 decks
5%synergy
Reach the Horizon
5.0%inclusion1 decks20 decks
4%synergy
Utility Artifacts
Combine Chrysalis
23%inclusion7 decks31 decks
18%synergy
Swiftfoot Boots
16%inclusion5 decks31 decks
-10%synergy
Lightning Greaves
13%inclusion4 decks31 decks
-9%synergy
Bident of Thassa
13%inclusion4 decks31 decks
5%synergy
Mirror Box
10%inclusion3 decks31 decks
6%synergy
Symmetry Matrix
6.5%inclusion2 decks31 decks
6%synergy
Idol of Oblivion
6.5%inclusion2 decks31 decks
3%synergy
Expedition Map
6.5%inclusion2 decks31 decks
2%synergy
Monster Manual
6.5%inclusion2 decks31 decks
5%synergy
Quicksilver Amulet
6.5%inclusion2 decks31 decks
6%synergy
The Earth Crystal
5.0%inclusion1 decks20 decks
1%synergy
Enchantments
Elemental Bond
35%inclusion11 decks31 decks
30%synergy
Wilderness Reclamation
23%inclusion7 decks31 decks
14%synergy
Primal Vigor
23%inclusion7 decks31 decks
19%synergy
Garruk's Uprising
23%inclusion7 decks31 decks
7%synergy
Imprisoned in the Moon
23%inclusion7 decks31 decks
18%synergy
Wild Growth
16%inclusion5 decks31 decks
7%synergy
Propaganda
16%inclusion5 decks31 decks
10%synergy
Growing Rites of Itlimoc
16%inclusion5 decks31 decks
10%synergy
Kindred Discovery
13%inclusion4 decks31 decks
3%synergy
Extravagant Replication
10%inclusion3 decks31 decks
7%synergy
Mystic Remora
10%inclusion3 decks31 decks
-6%synergy
Beastmaster Ascension
10%inclusion3 decks31 decks
7%synergy
Simic Ascendancy
10%inclusion3 decks31 decks
-4%synergy
Kenrith's Transformation
10%inclusion3 decks31 decks
5%synergy
Utopia Sprawl
10%inclusion3 decks31 decks
3%synergy
Verity Circle
10%inclusion3 decks31 decks
9%synergy
Tribute to the World Tree
10%inclusion3 decks31 decks
3%synergy
Mana Reflection
10%inclusion3 decks31 decks
5%synergy
Primeval Bounty
10%inclusion3 decks31 decks
8%synergy
Moonlit Meditation
7.1%inclusion1 decks14 decks
6%synergy
March of the World Ooze
6.9%inclusion2 decks29 decks
6%synergy
Doubling Season
6.5%inclusion2 decks31 decks
-3%synergy
Unnatural Growth
6.5%inclusion2 decks31 decks
3%synergy
Khalni Heart Expedition
6.5%inclusion2 decks31 decks
2%synergy
Leyline of Anticipation
6.5%inclusion2 decks31 decks
2%synergy
Zendikar's Roil
6.5%inclusion2 decks31 decks
2%synergy
Opposition
6.5%inclusion2 decks31 decks
6%synergy
Primal Rage
6.5%inclusion2 decks31 decks
6%synergy
Carpet of Flowers
6.5%inclusion2 decks31 decks
4%synergy
Retreat to Kazandu
6.5%inclusion2 decks31 decks
2%synergy
Lignify
6.5%inclusion2 decks31 decks
5%synergy
New Horizons
6.5%inclusion2 decks31 decks
6%synergy
Web of Inertia
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
Overgrowth
6.5%inclusion2 decks31 decks
6%synergy
Planeswalkers
Kiora, Master of the Depths
13%inclusion4 decks31 decks
10%synergy
Oko, Thief of Crowns
10%inclusion3 decks31 decks
2%synergy
Kiora, the Crashing Wave
10%inclusion3 decks31 decks
7%synergy
Nissa, Steward of Elements
10%inclusion3 decks31 decks
5%synergy
Tamiyo, Collector of Tales
6.5%inclusion2 decks31 decks
5%synergy
Kiora, Behemoth Beckoner
6.5%inclusion2 decks31 decks
0%synergy
Garruk, Primal Hunter
6.5%inclusion2 decks31 decks
4%synergy
Utility Lands
Reliquary Tower
45%inclusion14 decks31 decks
-5%synergy
Temple of the False God
19%inclusion6 decks31 decks
4%synergy
Lumbering Falls
16%inclusion5 decks31 decks
9%synergy
Rogue's Passage
16%inclusion5 decks31 decks
-6%synergy
Alchemist's Refuge
13%inclusion4 decks31 decks
-5%synergy
Bonders' Enclave
13%inclusion4 decks31 decks
11%synergy
Restless Vinestalk
10%inclusion3 decks31 decks
4%synergy
Mosswort Bridge
10%inclusion3 decks31 decks
-8%synergy
Memorial to Genius
6.5%inclusion2 decks31 decks
5%synergy
Castle Vantress
6.5%inclusion2 decks31 decks
0%synergy
Jungle Basin
6.5%inclusion2 decks31 decks
4%synergy
Coral Atoll
6.5%inclusion2 decks31 decks
4%synergy
Command Beacon
6.5%inclusion2 decks31 decks
2%synergy
Mystic Sanctuary
6.5%inclusion2 decks31 decks
-6%synergy
Halimar Depths
6.5%inclusion2 decks31 decks
3%synergy
Mana Artifacts
Sol Ring
81%inclusion25 decks31 decks
0%synergy
Arcane Signet
58%inclusion18 decks31 decks
-5%synergy
Simic Signet
26%inclusion8 decks31 decks
-7%synergy
Commander's Sphere
23%inclusion7 decks31 decks
14%synergy
Thought Vessel
19%inclusion6 decks31 decks
-1%synergy
Talisman of Curiosity
13%inclusion4 decks31 decks
-8%synergy
Herd Heirloom
8.0%inclusion2 decks25 decks
5%synergy
Decanter of Endless Water
6.5%inclusion2 decks31 decks
1%synergy
Mind Stone
6.5%inclusion2 decks31 decks
2%synergy
Blitzball
5.3%inclusion1 decks19 decks
5%synergy
Lands
Island
100%inclusion31 decks31 decks
5%synergy
Forest
100%inclusion31 decks31 decks
5%synergy
Command Tower
71%inclusion22 decks31 decks
-14%synergy
Simic Growth Chamber
58%inclusion18 decks31 decks
9%synergy
Evolving Wilds
58%inclusion18 decks31 decks
33%synergy
Thornwood Falls
48%inclusion15 decks31 decks
31%synergy
Vineglimmer Snarl
45%inclusion14 decks31 decks
7%synergy
Temple of Mystery
42%inclusion13 decks31 decks
3%synergy
Simic Guildgate
39%inclusion12 decks31 decks
28%synergy
Flooded Grove
39%inclusion12 decks31 decks
-2%synergy
Hinterland Harbor
39%inclusion12 decks31 decks
-20%synergy
Yavimaya Coast
32%inclusion10 decks31 decks
-20%synergy
Tangled Islet
29%inclusion9 decks31 decks
12%synergy
Terramorphic Expanse
29%inclusion9 decks31 decks
9%synergy
Woodland Stream
23%inclusion7 decks31 decks
17%synergy
Myriad Landscape
19%inclusion6 decks31 decks
-3%synergy
Blighted Woodland
19%inclusion6 decks31 decks
12%synergy
Path of Ancestry
19%inclusion6 decks31 decks
2%synergy
Rimewood Falls
16%inclusion5 decks31 decks
7%synergy
Exotic Orchard
16%inclusion5 decks31 decks
-8%synergy
Littjara Mirrorlake
16%inclusion5 decks31 decks
12%synergy
Guadosalam, Farplane Gateway
15%inclusion3 decks20 decks
13%synergy
Brokers Hideout
13%inclusion4 decks31 decks
8%synergy
Dreamroot Cascade
13%inclusion4 decks31 decks
-28%synergy
Overflowing Basin
13%inclusion4 decks31 decks
-6%synergy
Rejuvenating Springs
10%inclusion3 decks31 decks
-34%synergy
Quandrix Campus
10%inclusion3 decks31 decks
3%synergy
Barkchannel Pathway
10%inclusion3 decks31 decks
-11%synergy
Breeding Pool
6.5%inclusion2 decks31 decks
-38%synergy
Disciple of Freyalise
6.5%inclusion2 decks31 decks
2%synergy
Ash Barrens
6.5%inclusion2 decks31 decks
2%synergy
Waterlogged Grove
6.5%inclusion2 decks31 decks
-14%synergy
Bridgeworks Battle
6.5%inclusion2 decks31 decks
2%synergy
Sink into Stupor
6.5%inclusion2 decks31 decks
-5%synergy
Drowner of Truth
6.5%inclusion2 decks31 decks
4%synergy
Tanglepool Bridge
6.5%inclusion2 decks31 decks
2%synergy
Vivid Creek
6.5%inclusion2 decks31 decks
5%synergy
Lush Oasis
6.5%inclusion2 decks31 decks
0%synergy
Crossroads Village
5.0%inclusion1 decks20 decks
5%synergy
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