Average Deck for Koma, Cosmos Serpent - Expensive Optimized Control

Alternate Names:

The Monstrous SerpentThe Monstrous Serpent

Koma, Cosmos Serpent
Rank #296
3decks
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Nov 13, 2025
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Aug 6, 2025
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Average Decklist

Aesi, Tyrant of Gyre Strait
Aesi, Tyrant of Gyre Strait
Arixmethes, Slumbering Isle
Arixmethes, Slumbering Isle
Birds of Paradise
Birds of Paradise
Circle of Dreams Druid
Circle of Dreams Druid
Consecrated Sphinx
Consecrated Sphinx
Craterhoof Behemoth
Craterhoof Behemoth
Delighted Halfling
Delighted Halfling
Elvish Spirit Guide
Elvish Spirit Guide
Enduring Vitality
Enduring Vitality
Esix, Fractal Bloom
Esix, Fractal Bloom
Gene Pollinator
Gene Pollinator
Hullbreaker Horror
Hullbreaker Horror
Junk Winder
Junk Winder
Kinnan, Bonder Prodigy
Kinnan, Bonder Prodigy
Koma, World-Eater
Koma, World-Eater
Sakashima of a Thousand Faces
Sakashima of a Thousand Faces
Sakashima the Impostor
Sakashima the Impostor
Serpent of Yawning Depths
Serpent of Yawning Depths
Spark Double
Spark Double
Spellskite
Spellskite
Sylvan Safekeeper
Sylvan Safekeeper
Vorinclex, Voice of Hunger
Vorinclex, Voice of Hunger
Willbreaker
Willbreaker
Instants (20)
An Offer You Can't Refuse
An Offer You Can't Refuse
Arcane Denial
Arcane Denial
Beast Within
Beast Within
Counterspell
Counterspell
Crop Rotation
Crop Rotation
Cyclonic Rift
Cyclonic Rift
Fierce Guardianship
Fierce Guardianship
Flusterstorm
Flusterstorm
Force of Negation
Force of Negation
Force of Vigor
Force of Vigor
Force of Will
Force of Will
Heroic Intervention
Heroic Intervention
Krosan Grip
Krosan Grip
Legolas's Quick Reflexes
Legolas's Quick Reflexes
Mana Drain
Mana Drain
Mindbreak Trap
Mindbreak Trap
Mystical Tutor
Mystical Tutor
Pact of Negation
Pact of Negation
Swan Song
Swan Song
Worldly Tutor
Worldly Tutor
Sorceries (7)
Cultivate
Cultivate
Finale of Devastation
Finale of Devastation
Green Sun's Zenith
Green Sun's Zenith
Irenicus's Vile Duplication
Irenicus's Vile Duplication
Rampant Growth
Rampant Growth
Three Visits
Three Visits
Triumph of the Hordes
Triumph of the Hordes
Artifacts (9)
Arcane Signet
Arcane Signet
Chrome Mox
Chrome Mox
Helm of the Host
Helm of the Host
Lightning Greaves
Lightning Greaves
Lotus Petal
Lotus Petal
Mana Vault
Mana Vault
Sol Ring
Sol Ring
The Great Henge
The Great Henge
The One Ring
The One Ring
Enchantments (7)
Carpet of Flowers
Carpet of Flowers
Doubling Season
Doubling Season
Mystic Remora
Mystic Remora
Parallel Lives
Parallel Lives
Rhystic Study
Rhystic Study
Sylvan Library
Sylvan Library
Verity Circle
Verity Circle
Lands (23)
Ancient Tomb
Ancient Tomb
Barkchannel Pathway
Barkchannel Pathway
Boseiju, Who Endures
Boseiju, Who Endures
Breeding Pool
Breeding Pool
City of Brass
City of Brass
Command Beacon
Command Beacon
Command Tower
Command Tower
Emergence Zone
Emergence Zone
Evendo, Waking Haven
Evendo, Waking Haven
Exotic Orchard
Exotic Orchard
Gaea's Cradle
Gaea's Cradle
Hedge Maze
Hedge Maze
Mana Confluence
Mana Confluence
Minamo, School at Water's Edge
Minamo, School at Water's Edge
Mistrise Village
Mistrise Village
Misty Rainforest
Misty Rainforest
Otawara, Soaring City
Otawara, Soaring City
Prismatic Vista
Prismatic Vista
Rejuvenating Springs
Rejuvenating Springs
Three Tree City
Three Tree City
Tropical Island
Tropical Island
Yavimaya Coast
Yavimaya Coast
Yavimaya, Cradle of Growth
Yavimaya, Cradle of Growth
Basics (4)
Forest
3 Forests
Island
3 Islands
Snow-Covered Forest
2 Snow-Covered Forests
Snow-Covered Island
2 Snow-Covered Islands