Koma, Cosmos Serpent (Commander) - Core

Koma, Cosmos Serpent
607 decks (0.009%) Rank #284
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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
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Enchantments
Battles
Planeswalkers
Utility Lands
Mana Artifacts
Lands
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Starwinder
14% of 49 decks +8% synergy
Moonlit Meditation
6% of 49 decks +5% synergy
Frenzied Baloth
5% of 55 decks +4% synergy
Evendo, Waking Haven
4% of 53 decks -0% synergy
Glacier Godmaw
2% of 48 decks -2% synergy
High Synergy Cards
Whelming Wave
76% of 607 decks +65% synergy
Junk Winder
62% of 607 decks +56% synergy
Adrix and Nev, Twincasters
62% of 607 decks +54% synergy
Elemental Bond
56% of 607 decks +51% synergy
Koma, World-Eater
63% of 352 decks +50% synergy
Irenicus's Vile Duplication
50% of 607 decks +43% synergy
Serpent of Yawning Depths
44% of 607 decks +38% synergy
Garruk's Packleader
39% of 607 decks +37% synergy
Kodama's Reach
73% of 607 decks +36% synergy
Double Major
44% of 607 decks +35% synergy
Top Cards
Cultivate
82% of 607 decks +35% synergy
Rampant Growth
73% of 607 decks +32% synergy
Counterspell
68% of 607 decks +17% synergy
Growth Spiral
67% of 607 decks +23% synergy
Beast Within
62% of 607 decks +11% synergy
Negate
58% of 607 decks +31% synergy
Arixmethes, Slumbering Isle
48% of 607 decks +35% synergy
Tatyova, Benthic Druid
47% of 607 decks +16% synergy
Nature's Lore
47% of 607 decks +17% synergy
Swiftfoot Boots
47% of 607 decks +20% synergy
Game Changers
Seedborn Muse
11% of 607 decks -5% synergy
Creatures
Aesi, Tyrant of Gyre Strait
46% of 607 decks +30% synergy
Spark Double
45% of 607 decks +35% synergy
Sakura-Tribe Elder
44% of 607 decks +25% synergy
Llanowar Elves
44% of 607 decks +16% synergy
Murkfiend Liege
44% of 607 decks +28% synergy
Spawning Kraken
42% of 607 decks +35% synergy
Slinn Voda, the Rising Deep
36% of 607 decks +30% synergy
Elvish Mystic
35% of 607 decks +11% synergy
Coiling Oracle
33% of 607 decks +20% synergy
Hullbreaker Horror
31% of 607 decks +14% synergy
Eternal Witness
27% of 607 decks +5% synergy
Scourge of Fleets
27% of 607 decks +19% synergy
Esix, Fractal Bloom
27% of 607 decks +23% synergy
Octomancer
27% of 459 decks +22% synergy
Archetype of Imagination
26% of 607 decks +21% synergy
Sakashima the Impostor
26% of 607 decks +23% synergy
Fyndhorn Elves
25% of 607 decks +9% synergy
Summon: Leviathan
25% of 110 decks +18% synergy
Nadir Kraken
23% of 607 decks +19% synergy
Ohran Frostfang
23% of 607 decks +19% synergy
Sakashima of a Thousand Faces
22% of 607 decks +17% synergy
Reclamation Sage
22% of 607 decks +7% synergy
Birds of Paradise
21% of 607 decks -6% synergy
Xolatoyac, the Smiling Flood
20% of 588 decks +12% synergy
Stormtide Leviathan
18% of 607 decks +12% synergy
Enduring Vitality
18% of 426 decks +11% synergy
Rampaging Baloths
18% of 607 decks +0% synergy
Avenger of Zendikar
18% of 607 decks -1% synergy
Troyan, Gutsy Explorer
17% of 607 decks +14% synergy
Nezahal, Primal Tide
16% of 607 decks +5% synergy
Curiosity Crafter
16% of 607 decks +13% synergy
Scute Swarm
16% of 607 decks -6% synergy
Inga and Esika
14% of 607 decks +11% synergy
Reef Worm
14% of 607 decks +10% synergy
Kiora, Sovereign of the Deep
14% of 607 decks +12% synergy
Tromokratis
14% of 607 decks +9% synergy
Fanatic of Rhonas
14% of 487 decks +8% synergy
Saryth, the Viper's Fang
12% of 607 decks +10% synergy
Toski, Bearer of Secrets
11% of 607 decks +8% synergy
Jaheira, Friend of the Forest
11% of 607 decks +7% synergy
Tireless Provisioner
11% of 607 decks -5% synergy
Progenitor Mimic
11% of 607 decks +6% synergy
Enduring Curiosity
11% of 431 decks +7% synergy
Lotus Cobra
10% of 607 decks -4% synergy
Roaming Throne
10% of 589 decks +2% synergy
Simic Sky Swallower
10% of 607 decks +5% synergy
Stormsurge Kraken
9% of 607 decks +4% synergy
Charix, the Raging Isle
9% of 607 decks +5% synergy
Glasspool Mimic
8% of 607 decks +4% synergy
Inkwell Leviathan
8% of 607 decks +4% synergy
Instants
Return of the Wildspeaker
38% of 607 decks +27% synergy
Second Harvest
35% of 607 decks +28% synergy
Arcane Denial
33% of 607 decks +11% synergy
Pongify
30% of 607 decks +5% synergy
Heroic Intervention
29% of 607 decks -1% synergy
Rapid Hybridization
29% of 607 decks +3% synergy
Simic Charm
29% of 607 decks +20% synergy
Krosan Grip
27% of 607 decks +18% synergy
An Offer You Can't Refuse
26% of 607 decks +4% synergy
Reality Shift
24% of 607 decks +9% synergy
Planar Genesis
22% of 487 decks +11% synergy
Eureka Moment
20% of 607 decks +9% synergy
Harrow
19% of 607 decks +7% synergy
Snakeskin Veil
19% of 607 decks +14% synergy
Return to Nature
19% of 607 decks +13% synergy
Brainstorm
16% of 607 decks +2% synergy
Aetherize
16% of 607 decks +5% synergy
Nature's Claim
16% of 607 decks +5% synergy
Tamiyo's Safekeeping
15% of 607 decks +9% synergy
Perplexing Test
13% of 607 decks +8% synergy
Decisive Denial
12% of 607 decks +7% synergy
Voidslime
12% of 607 decks +7% synergy
Entish Restoration
12% of 607 decks +3% synergy
Plasm Capture
12% of 607 decks +8% synergy
Mystic Reflection
11% of 607 decks +8% synergy
Saw It Coming
9% of 607 decks +7% synergy
Swan Song
9% of 607 decks -10% synergy
Joint Exploration
8% of 607 decks +2% synergy
Resculpt
8% of 607 decks +2% synergy
Tyvar's Stand
8% of 607 decks +5% synergy
Collective Resistance
8% of 488 decks +4% synergy
Stubborn Denial
8% of 607 decks +5% synergy
Disdainful Stroke
7% of 607 decks +5% synergy
Sublime Epiphany
7% of 607 decks +5% synergy
Cancel
6% of 607 decks +4% synergy
Fact or Fiction
6% of 607 decks +3% synergy
Sink into Stupor
6% of 488 decks -5% synergy
Opt
6% of 607 decks -2% synergy
Archdruid's Charm
6% of 552 decks -1% synergy
Rewind
6% of 607 decks +3% synergy
Roiling Regrowth
6% of 607 decks +1% synergy
Lazotep Plating
5% of 607 decks +5% synergy
Sorceries
Farseek
45% of 607 decks +22% synergy
Explore
39% of 607 decks +18% synergy
Three Visits
32% of 607 decks +9% synergy
Skyshroud Claim
30% of 607 decks +21% synergy
Urban Evolution
28% of 607 decks +18% synergy
Overwhelming Stampede
28% of 607 decks +16% synergy
Shamanic Revelation
26% of 607 decks +20% synergy
Quantum Misalignment
21% of 599 decks +18% synergy
Migration Path
21% of 607 decks +17% synergy
Rite of Replication
17% of 607 decks +10% synergy
Search for Tomorrow
16% of 607 decks +11% synergy
Harmonize
16% of 607 decks +10% synergy
Rishkar's Expertise
15% of 607 decks +7% synergy
Explosive Vegetation
15% of 607 decks +9% synergy
Distant Melody
14% of 607 decks +11% synergy
Curse of the Swine
13% of 607 decks +2% synergy
Ravenform
11% of 607 decks +7% synergy
Ezuri's Predation
10% of 607 decks +2% synergy
Bala Ged Recovery
9% of 607 decks -1% synergy
Broken Bond
9% of 607 decks +4% synergy
Preordain
8% of 607 decks -0% synergy
Preposterous Proportions
8% of 347 decks +7% synergy
Doppelgang
8% of 552 decks +1% synergy
Ponder
8% of 607 decks +0% synergy
Spitting Image
7% of 607 decks +4% synergy
Overrun
7% of 607 decks +4% synergy
Croaking Counterpart
6% of 607 decks +1% synergy
Triumph of the Hordes
6% of 607 decks +3% synergy
Aggressive Biomancy
6% of 486 decks +0% synergy
Bridgeworks Battle
6% of 488 decks +1% synergy
Regrowth
5% of 607 decks +1% synergy
Utility Artifacts
Combine Chrysalis
35% of 607 decks +30% synergy
Helm of the Host
34% of 607 decks +29% synergy
Lightning Greaves
29% of 607 decks +7% synergy
Idol of Oblivion
19% of 607 decks +15% synergy
Mirror Box
17% of 607 decks +14% synergy
Bident of Thassa
14% of 607 decks +7% synergy
Emerald Medallion
9% of 607 decks +6% synergy
Sapphire Medallion
7% of 607 decks +4% synergy
Eldrazi Monument
6% of 607 decks +6% synergy
Kefnet's Monument
5% of 607 decks +4% synergy
Enchantments
Parallel Lives
29% of 607 decks +23% synergy
Tribute to the World Tree
28% of 607 decks +21% synergy
Garruk's Uprising
27% of 607 decks +12% synergy
Doubling Season
25% of 607 decks +16% synergy
Kindred Discovery
22% of 607 decks +11% synergy
Wild Growth
17% of 607 decks +8% synergy
Beastmaster Ascension
17% of 607 decks +13% synergy
Primal Vigor
15% of 607 decks +12% synergy
Utopia Sprawl
13% of 607 decks +7% synergy
Wilderness Reclamation
13% of 607 decks +4% synergy
Growing Rites of Itlimoc
12% of 607 decks +6% synergy
Ominous Seas
12% of 607 decks +7% synergy
Unnatural Growth
11% of 607 decks +8% synergy
Mystic Remora
11% of 607 decks -5% synergy
Propaganda
11% of 607 decks +4% synergy
Kenrith's Transformation
10% of 607 decks +5% synergy
Khalni Heart Expedition
10% of 607 decks +6% synergy
Paradox Haze
9% of 607 decks +9% synergy
Imprisoned in the Moon
9% of 607 decks +5% synergy
Extravagant Replication
9% of 607 decks +6% synergy
Exploration
8% of 607 decks -6% synergy
Verity Circle
8% of 607 decks +7% synergy
Quest for Ula's Temple
7% of 607 decks +4% synergy
Cryptolith Rite
6% of 607 decks +3% synergy
Reconnaissance Mission
6% of 607 decks +4% synergy
Asceticism
6% of 607 decks +2% synergy
Battles
Invasion of Segovia
7% of 607 decks +6% synergy
Invasion of Zendikar
6% of 607 decks +4% synergy
Planeswalkers
Oko, Thief of Crowns
12% of 607 decks +4% synergy
Kiora, the Crashing Wave
9% of 607 decks +6% synergy
Kiora, Behemoth Beckoner
9% of 607 decks +3% synergy
Utility Lands
Reliquary Tower
52% of 607 decks +1% synergy
Temple of the False God
25% of 607 decks +9% synergy
Rogue's Passage
20% of 607 decks -2% synergy
Mosswort Bridge
19% of 607 decks +2% synergy
Mystic Sanctuary
13% of 607 decks -0% synergy
Yavimaya, Cradle of Growth
9% of 607 decks -13% synergy
Lumbering Falls
9% of 607 decks +2% synergy
Command Beacon
9% of 607 decks +5% synergy
Castle Garenbrig
9% of 607 decks +4% synergy
Alchemist's Refuge
8% of 607 decks -9% synergy
Restless Vinestalk
8% of 607 decks +2% synergy
Three Tree City
7% of 464 decks +2% synergy
Castle Vantress
7% of 607 decks -0% synergy
Boseiju, Who Endures
6% of 607 decks -16% synergy
Mistrise Village
6% of 157 decks -4% synergy
Jungle Basin
5% of 607 decks +3% synergy
Coral Atoll
5% of 607 decks +2% synergy
Mana Artifacts
Sol Ring
87% of 607 decks +6% synergy
Arcane Signet
73% of 607 decks +10% synergy
Simic Signet
48% of 607 decks +15% synergy
Thought Vessel
33% of 607 decks +13% synergy
Talisman of Curiosity
29% of 607 decks +8% synergy
Commander's Sphere
20% of 607 decks +11% synergy
Fellwar Stone
11% of 607 decks +2% synergy
Mind Stone
9% of 607 decks +5% synergy
Decanter of Endless Water
9% of 607 decks +3% synergy
Thran Dynamo
8% of 607 decks +5% synergy
Lands
Island
96% of 607 decks +1% synergy
Forest
96% of 607 decks +1% synergy
Command Tower
85% of 607 decks -0% synergy
Simic Growth Chamber
56% of 607 decks +7% synergy
Hinterland Harbor
54% of 607 decks -4% synergy
Yavimaya Coast
51% of 607 decks -2% synergy
Temple of Mystery
46% of 607 decks +8% synergy
Vineglimmer Snarl
42% of 607 decks +3% synergy
Dreamroot Cascade
39% of 607 decks -2% synergy
Flooded Grove
37% of 607 decks -3% synergy
Myriad Landscape
34% of 607 decks +11% synergy
Evolving Wilds
33% of 607 decks +7% synergy
Rejuvenating Springs
32% of 607 decks -12% synergy
Thornwood Falls
29% of 607 decks +11% synergy
Exotic Orchard
28% of 607 decks +4% synergy
Tangled Islet
28% of 607 decks +11% synergy
Terramorphic Expanse
24% of 607 decks +4% synergy
Breeding Pool
22% of 607 decks -22% synergy
Rimewood Falls
22% of 607 decks +12% synergy
Barkchannel Pathway
21% of 607 decks -0% synergy
Simic Guildgate
18% of 607 decks +7% synergy
Overflowing Basin
17% of 533 decks -3% synergy
Waterlogged Grove
14% of 607 decks -6% synergy
Path of Ancestry
13% of 607 decks -4% synergy
Blighted Woodland
13% of 607 decks +5% synergy
Misty Rainforest
11% of 607 decks -20% synergy
Littjara Mirrorlake
11% of 607 decks +6% synergy
Hedge Maze
10% of 553 decks -9% synergy
Botanical Sanctum
10% of 607 decks -3% synergy
Fabled Passage
10% of 607 decks -5% synergy
Woodland Stream
9% of 607 decks +4% synergy
Bala Ged Recovery
9% of 607 decks -1% synergy
Willowrush Verge
9% of 234 decks -6% synergy
Glasspool Mimic
8% of 607 decks +4% synergy
Quandrix Campus
8% of 607 decks +1% synergy
Snow-Covered Island
6% of 607 decks -1% synergy
Snow-Covered Forest
6% of 607 decks -1% synergy
Sink into Stupor
6% of 488 decks -5% synergy
Lush Oasis
6% of 517 decks -1% synergy
Bridgeworks Battle
6% of 488 decks +1% synergy
Tanglepool Bridge
5% of 607 decks +1% synergy
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