Koma, Cosmos Serpent (Commander) - cEDH Aggro

Koma, Cosmos Serpent
Rank #289
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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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Mana Vault
100%inclusion1 decks1 decks
94%synergy
Gaea's Cradle
100%inclusion1 decks1 decks
93%synergy
The One Ring
100%inclusion1 decks1 decks
92%synergy
Ancient Tomb
100%inclusion1 decks1 decks
91%synergy
Mystical Tutor
100%inclusion1 decks1 decks
90%synergy
Force of Will
100%inclusion1 decks1 decks
90%synergy
Crop Rotation
100%inclusion1 decks1 decks
87%synergy
Worldly Tutor
100%inclusion1 decks1 decks
84%synergy
Seedborn Muse
100%inclusion1 decks1 decks
84%synergy
Fierce Guardianship
100%inclusion1 decks1 decks
83%synergy
Creatures
Adrix and Nev, Twincasters
100%inclusion1 decks1 decks
91%synergy
Kiora's Follower
100%inclusion1 decks1 decks
85%synergy
Phyrexian Metamorph
100%inclusion1 decks1 decks
92%synergy
Incubation Druid
100%inclusion1 decks1 decks
92%synergy
Junk Winder
100%inclusion1 decks1 decks
93%synergy
Ilysian Caryatid
100%inclusion1 decks1 decks
96%synergy
Craterhoof Behemoth
100%inclusion1 decks1 decks
91%synergy
Spark Double
100%inclusion1 decks1 decks
90%synergy
Sakashima of a Thousand Faces
100%inclusion1 decks1 decks
95%synergy
Phantasmal Image
100%inclusion1 decks1 decks
96%synergy
Birds of Paradise
100%inclusion1 decks1 decks
72%synergy
Hullbreaker Horror
100%inclusion1 decks1 decks
82%synergy
Clever Impersonator
100%inclusion1 decks1 decks
95%synergy
Somberwald Sage
100%inclusion1 decks1 decks
99%synergy
Instants
Rapid Hybridization
100%inclusion1 decks1 decks
74%synergy
An Offer You Can't Refuse
100%inclusion1 decks1 decks
77%synergy
Negate
100%inclusion1 decks1 decks
74%synergy
Archdruid's Charm
100%inclusion1 decks1 decks
94%synergy
Mindbreak Trap
100%inclusion1 decks1 decks
95%synergy
Force of Vigor
100%inclusion1 decks1 decks
95%synergy
Second Harvest
100%inclusion1 decks1 decks
94%synergy
Nature's Claim
100%inclusion1 decks1 decks
90%synergy
Mana Drain
100%inclusion1 decks1 decks
84%synergy
Beast Within
100%inclusion1 decks1 decks
49%synergy
Flusterstorm
100%inclusion1 decks1 decks
93%synergy
Disallow
100%inclusion1 decks1 decks
98%synergy
Swan Song
100%inclusion1 decks1 decks
81%synergy
Tale's End
100%inclusion1 decks1 decks
99%synergy
Noxious Revival
100%inclusion1 decks1 decks
94%synergy
Cryptic Command
100%inclusion1 decks1 decks
99%synergy
Arcane Denial
100%inclusion1 decks1 decks
77%synergy
Force of Negation
100%inclusion1 decks1 decks
91%synergy
Stifle
100%inclusion1 decks1 decks
99%synergy
Rewind
100%inclusion1 decks1 decks
97%synergy
Counterspell
100%inclusion1 decks1 decks
50%synergy
Cyclonic Rift
100%inclusion1 decks1 decks
73%synergy
Pact of Negation
100%inclusion1 decks1 decks
93%synergy
Sorceries
Quantum Misalignment
100%inclusion1 decks1 decks
97%synergy
Triumph of the Hordes
100%inclusion1 decks1 decks
97%synergy
Finale of Devastation
100%inclusion1 decks1 decks
88%synergy
Nylea's Intervention
100%inclusion1 decks1 decks
99%synergy
Bala Ged Recovery
100%inclusion1 decks1 decks
90%synergy
Overwhelming Stampede
100%inclusion1 decks1 decks
88%synergy
Whelming Wave
100%inclusion1 decks1 decks
89%synergy
Sylvan Scrying
100%inclusion1 decks1 decks
94%synergy
Utility Artifacts
Coat of Arms
100%inclusion1 decks1 decks
99%synergy
Helm of the Host
100%inclusion1 decks1 decks
95%synergy
Enchantments
Kindred Discovery
100%inclusion1 decks1 decks
90%synergy
Rhystic Study
100%inclusion1 decks1 decks
78%synergy
Wilderness Reclamation
100%inclusion1 decks1 decks
91%synergy
Tribute to the World Tree
100%inclusion1 decks1 decks
93%synergy
Parallel Lives
100%inclusion1 decks1 decks
94%synergy
Mystic Remora
100%inclusion1 decks1 decks
84%synergy
Opposition
100%inclusion1 decks1 decks
100%synergy
Elemental Bond
100%inclusion1 decks1 decks
94%synergy
Defense of the Heart
100%inclusion1 decks1 decks
98%synergy
Battles
Invasion of Ikoria
100%inclusion1 decks1 decks
96%synergy
Planeswalkers
Oko, Thief of Crowns
100%inclusion1 decks1 decks
93%synergy
Utility Lands
Wasteland
100%inclusion1 decks1 decks
99%synergy
Alchemist's Refuge
100%inclusion1 decks1 decks
82%synergy
Urza's Saga
100%inclusion1 decks1 decks
95%synergy
Scavenger Grounds
100%inclusion1 decks1 decks
96%synergy
Yavimaya, Cradle of Growth
100%inclusion1 decks1 decks
78%synergy
Boseiju, Who Endures
100%inclusion1 decks1 decks
78%synergy
Reliquary Tower
100%inclusion1 decks1 decks
50%synergy
Otawara, Soaring City
100%inclusion1 decks1 decks
81%synergy
Mana Artifacts
Arcane Signet
100%inclusion1 decks1 decks
37%synergy
Sol Ring
100%inclusion1 decks1 decks
19%synergy
Talisman of Curiosity
100%inclusion1 decks1 decks
79%synergy
Fellwar Stone
100%inclusion1 decks1 decks
91%synergy
Lands
Prismatic Vista
100%inclusion1 decks1 decks
92%synergy
Command Tower
100%inclusion1 decks1 decks
15%synergy
Misty Rainforest
100%inclusion1 decks1 decks
69%synergy
Breeding Pool
100%inclusion1 decks1 decks
55%synergy
Vineglimmer Snarl
100%inclusion1 decks1 decks
61%synergy
Yavimaya Coast
100%inclusion1 decks1 decks
48%synergy
Snow-Covered Island
100%inclusion1 decks1 decks
93%synergy
Snow-Covered Forest
100%inclusion1 decks1 decks
93%synergy
Waterlogged Grove
100%inclusion1 decks1 decks
79%synergy
Tropical Island
100%inclusion1 decks1 decks
86%synergy
Mana Confluence
100%inclusion1 decks1 decks
94%synergy
Rejuvenating Springs
100%inclusion1 decks1 decks
56%synergy
Bala Ged Recovery
100%inclusion1 decks1 decks
90%synergy
Dreamroot Cascade
100%inclusion1 decks1 decks
59%synergy
City of Brass
100%inclusion1 decks1 decks
94%synergy
Hinterland Harbor
100%inclusion1 decks1 decks
41%synergy
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