Average Deck for Koma, Cosmos Serpent - Expensive Big Mana

Alternate Names:

The Monstrous SerpentThe Monstrous Serpent

Background image for Fun Alternatives for the Top Ten Saltiest Commanders
Ezra Sassaman
Mar 12, 2026
Fun Alternatives for the Top Ten Saltiest Commanders
Is your playgroup tired of your Tergrid deck? (Can't blame them.) Then check out this list of replacements for the saltiest commanders.
Background image for Ten Brutal Cards To Try With The Cloning of Shredder
Levi Perry
Feb 4, 2026
Ten Brutal Cards To Try With The Cloning of Shredder
The Cloning of Shredder creates three nonlegendary token copies of a card you exile from your graveyard. What are the best ways to break it?
Cardsphere
Archidekt
Commander Spellbook
Moxfield
Scryfall

Average Decklist

Aesi, Tyrant of Gyre Strait
Aesi, Tyrant of Gyre Strait
Arixmethes, Slumbering Isle
Arixmethes, Slumbering Isle
Benthic Anomaly
Benthic Anomaly
Birds of Paradise
Birds of Paradise
Breaching Leviathan
Breaching Leviathan
Cemetery Prowler
Cemetery Prowler
Coiling Oracle
Coiling Oracle
Delighted Halfling
Delighted Halfling
Disciple of Freyalise
Disciple of Freyalise
Enduring Vitality
Enduring Vitality
Gyre Sage
Gyre Sage
Hullbreaker Horror
Hullbreaker Horror
Junk Winder
Junk Winder
Koma, World-Eater
Koma, World-Eater
Ledger Shredder
Ledger Shredder
Nezahal, Primal Tide
Nezahal, Primal Tide
Pathbreaker Ibex
Pathbreaker Ibex
Pollywog Prodigy
Pollywog Prodigy
Reservoir Kraken
Reservoir Kraken
Runic Armasaur
Runic Armasaur
Scourge of Fleets
Scourge of Fleets
Seedborn Muse
Seedborn Muse
Selvala, Heart of the Wilds
Selvala, Heart of the Wilds
Serpent of Yawning Depths
Serpent of Yawning Depths
Skyserpent Seeker
Skyserpent Seeker
Slinn Voda, the Rising Deep
Slinn Voda, the Rising Deep
Spark Double
Spark Double
Spawning Kraken
Spawning Kraken
Wan Shi Tong, Librarian
Wan Shi Tong, Librarian
Instants (14)
Constant Mists
Constant Mists
Disallow
Disallow
Fog
Fog
Legolas's Quick Reflexes
Legolas's Quick Reflexes
Louisoix's Sacrifice
Louisoix's Sacrifice
Mana Drain
Mana Drain
Momentous Fall
Momentous Fall
Muddle the Mixture
Muddle the Mixture
Planar Genesis
Planar Genesis
Plasm Capture
Plasm Capture
Return of the Wildspeaker
Return of the Wildspeaker
Simic Charm
Simic Charm
Sink into Stupor
Sink into Stupor
Tale's End
Tale's End
Sorceries (11)
Bridgeworks Battle
Bridgeworks Battle
Irenicus's Vile Duplication
Irenicus's Vile Duplication
Last March of the Ents
Last March of the Ents
Life's Legacy
Life's Legacy
Migration Path
Migration Path
Monstrous Onslaught
Monstrous Onslaught
Nature's Lore
Nature's Lore
Rampant Growth
Rampant Growth
Skyshroud Claim
Skyshroud Claim
Three Visits
Three Visits
Whelming Wave
Whelming Wave
Artifacts (3)
Arcane Signet
Arcane Signet
Sapphire Medallion
Sapphire Medallion
Sol Ring
Sol Ring
Enchantments (7)
Cryptolith Rite
Cryptolith Rite
Elemental Bond
Elemental Bond
Food Chain
Food Chain
Greater Good
Greater Good
Tribute to the World Tree
Tribute to the World Tree
Up the Beanstalk
Up the Beanstalk
Wilderness Reclamation
Wilderness Reclamation
Lands (21)
Barkchannel Pathway
Barkchannel Pathway
Boseiju, Who Endures
Boseiju, Who Endures
Breeding Pool
Breeding Pool
Cavern of Souls
Cavern of Souls
Command Tower
Command Tower
Flooded Grove
Flooded Grove
Hedge Maze
Hedge Maze
Hinterland Harbor
Hinterland Harbor
Mistrise Village
Mistrise Village
Misty Rainforest
Misty Rainforest
Mosswort Bridge
Mosswort Bridge
Mystic Sanctuary
Mystic Sanctuary
Otawara, Soaring City
Otawara, Soaring City
Pit of Offerings
Pit of Offerings
Rejuvenating Springs
Rejuvenating Springs
Reliquary Tower
Reliquary Tower
Rogue's Passage
Rogue's Passage
Scavenger Grounds
Scavenger Grounds
Tropical Island
Tropical Island
Waterlogged Grove
Waterlogged Grove
Yavimaya, Cradle of Growth
Yavimaya, Cradle of Growth
Basics (2)
Forest
7 Forests
Island
7 Islands