Koma, Cosmos Serpent (Commander) - Budget Midrange

Alternate Names:

The Monstrous SerpentThe Monstrous Serpent

Koma, Cosmos Serpent
Rank #298
3decks
As CommanderAs CardAverage DeckDecks
Bracket
All12345
Budget
Any$$$$
Background image for How To Play Sea Creatures Differently In Commander
Sikora
Nov 13, 2025
Sikora
How To Play Sea Creatures Differently In Commander
Sea creatures in Magic are basically as old as the game itself, but they've changed significantly in that time.
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Sab-Sunen, Luxa Embodied
100%inclusion1 decks1 decks
98%synergy
Troyan, Gutsy Explorer
67%inclusion2 decks3 decks
63%synergy
Llanowar Elves
67%inclusion2 decks3 decks
39%synergy
Coiling Oracle
67%inclusion2 decks3 decks
53%synergy
Toski, Bearer of Secrets
67%inclusion2 decks3 decks
63%synergy
Charix, the Raging Isle
67%inclusion2 decks3 decks
63%synergy
Arixmethes, Slumbering Isle
67%inclusion2 decks3 decks
53%synergy
Koma, World-Eater
50%inclusion1 decks2 decks
37%synergy
Enduring Curiosity
50%inclusion1 decks2 decks
47%synergy
Mockingbird
50%inclusion1 decks2 decks
47%synergy
Snapping Voidcraw
50%inclusion1 decks2 decks
48%synergy
Nightshade Dryad
50%inclusion1 decks2 decks
49%synergy
Solemn Simulacrum
33%inclusion1 decks3 decks
27%synergy
Maraleaf Pixie
33%inclusion1 decks3 decks
27%synergy
Reclamation Sage
33%inclusion1 decks3 decks
19%synergy
Tatyova, Benthic Druid
33%inclusion1 decks3 decks
2%synergy
Adrix and Nev, Twincasters
33%inclusion1 decks3 decks
25%synergy
Garruk's Packleader
33%inclusion1 decks3 decks
31%synergy
Sylvan Caryatid
33%inclusion1 decks3 decks
31%synergy
Terastodon
33%inclusion1 decks3 decks
25%synergy
Kiora's Follower
33%inclusion1 decks3 decks
18%synergy
Xolatoyac, the Smiling Flood
33%inclusion1 decks3 decks
26%synergy
Inga and Esika
33%inclusion1 decks3 decks
31%synergy
Elvish Mystic
33%inclusion1 decks3 decks
9%synergy
Kenessos, Priest of Thassa
33%inclusion1 decks3 decks
31%synergy
Saryth, the Viper's Fang
33%inclusion1 decks3 decks
32%synergy
Watchful Radstag
33%inclusion1 decks3 decks
32%synergy
Scourge of Fleets
33%inclusion1 decks3 decks
25%synergy
Junk Winder
33%inclusion1 decks3 decks
27%synergy
Beast Whisperer
33%inclusion1 decks3 decks
24%synergy
End-Raze Forerunners
33%inclusion1 decks3 decks
28%synergy
Thassa, God of the Sea
33%inclusion1 decks3 decks
28%synergy
Azusa, Lost but Seeking
33%inclusion1 decks3 decks
19%synergy
Stormsurge Kraken
33%inclusion1 decks3 decks
29%synergy
Slinn Voda, the Rising Deep
33%inclusion1 decks3 decks
27%synergy
Lotus Cobra
33%inclusion1 decks3 decks
20%synergy
Spark Double
33%inclusion1 decks3 decks
24%synergy
Esix, Fractal Bloom
33%inclusion1 decks3 decks
29%synergy
Ghalta, Primal Hunger
33%inclusion1 decks3 decks
30%synergy
Managorger Hydra
33%inclusion1 decks3 decks
28%synergy
Ohran Frostfang
33%inclusion1 decks3 decks
30%synergy
Voyaging Satyr
33%inclusion1 decks3 decks
32%synergy
Champion of Lambholt
33%inclusion1 decks3 decks
28%synergy
Trygon Predator
33%inclusion1 decks3 decks
27%synergy
Gala Greeters
33%inclusion1 decks3 decks
32%synergy
Serpent of Yawning Depths
33%inclusion1 decks3 decks
27%synergy
Hullbreaker Horror
33%inclusion1 decks3 decks
16%synergy
Prosperous Innkeeper
33%inclusion1 decks3 decks
31%synergy
Esior, Wardwing Familiar
33%inclusion1 decks3 decks
33%synergy
Sakura-Tribe Elder
33%inclusion1 decks3 decks
14%synergy
Instants
Growth Spiral
100%inclusion3 decks3 decks
56%synergy
Joint Exploration
100%inclusion3 decks3 decks
94%synergy
Snakeskin Veil
67%inclusion2 decks3 decks
61%synergy
Negate
67%inclusion2 decks3 decks
41%synergy
Plasm Capture
67%inclusion2 decks3 decks
63%synergy
Repulsive Mutation
67%inclusion2 decks3 decks
62%synergy
Counterspell
67%inclusion2 decks3 decks
17%synergy
Double Major
67%inclusion2 decks3 decks
58%synergy
Refute
50%inclusion1 decks2 decks
48%synergy
Brainsurge
50%inclusion1 decks2 decks
47%synergy
Planar Genesis
50%inclusion1 decks2 decks
39%synergy
Frantic Search
33%inclusion1 decks3 decks
28%synergy
Return of the Wildspeaker
33%inclusion1 decks3 decks
23%synergy
Decisive Denial
33%inclusion1 decks3 decks
28%synergy
Dissolve
33%inclusion1 decks3 decks
31%synergy
Incubation // Incongruity
33%inclusion1 decks3 decks
31%synergy
Stubborn Denial
33%inclusion1 decks3 decks
31%synergy
Mystic Reflection
33%inclusion1 decks3 decks
31%synergy
Nature's Claim
33%inclusion1 decks3 decks
23%synergy
Harrow
33%inclusion1 decks3 decks
21%synergy
Reality Shift
33%inclusion1 decks3 decks
19%synergy
Beast Within
33%inclusion1 decks3 decks
-17%synergy
Aetherize
33%inclusion1 decks3 decks
22%synergy
Cancel
33%inclusion1 decks3 decks
31%synergy
Spell Swindle
33%inclusion1 decks3 decks
32%synergy
Perplexing Test
33%inclusion1 decks3 decks
29%synergy
Filter Out
33%inclusion1 decks3 decks
31%synergy
Saw It Coming
33%inclusion1 decks3 decks
32%synergy
Lazotep Plating
33%inclusion1 decks3 decks
33%synergy
Rewind
33%inclusion1 decks3 decks
30%synergy
Tamiyo's Safekeeping
33%inclusion1 decks3 decks
28%synergy
Voidslime
33%inclusion1 decks3 decks
28%synergy
March of Swirling Mist
33%inclusion1 decks3 decks
29%synergy
Miscast
33%inclusion1 decks3 decks
31%synergy
Unwind
33%inclusion1 decks3 decks
31%synergy
Rethink
33%inclusion1 decks3 decks
33%synergy
Sorceries
Cultivate
100%inclusion3 decks3 decks
53%synergy
Kodama's Reach
67%inclusion2 decks3 decks
30%synergy
Skyshroud Claim
67%inclusion2 decks3 decks
58%synergy
Rampant Growth
67%inclusion2 decks3 decks
26%synergy
Whelming Wave
67%inclusion2 decks3 decks
55%synergy
Ponder
33%inclusion1 decks3 decks
26%synergy
Circuitous Route
33%inclusion1 decks3 decks
31%synergy
Flood of Tears
33%inclusion1 decks3 decks
31%synergy
Farseek
33%inclusion1 decks3 decks
9%synergy
Wash Out
33%inclusion1 decks3 decks
33%synergy
Finale of Revelation
33%inclusion1 decks3 decks
28%synergy
Nature's Lore
33%inclusion1 decks3 decks
3%synergy
Search for Tomorrow
33%inclusion1 decks3 decks
29%synergy
Irenicus's Vile Duplication
33%inclusion1 decks3 decks
27%synergy
Distant Melody
33%inclusion1 decks3 decks
30%synergy
Explore
33%inclusion1 decks3 decks
13%synergy
River's Rebuke
33%inclusion1 decks3 decks
31%synergy
Bushwhack
33%inclusion1 decks3 decks
31%synergy
Doppelgang
33%inclusion1 decks3 decks
27%synergy
Ezuri's Predation
33%inclusion1 decks3 decks
26%synergy
Bala Ged Recovery
33%inclusion1 decks3 decks
23%synergy
Migration Path
33%inclusion1 decks3 decks
30%synergy
Rite of Replication
33%inclusion1 decks3 decks
26%synergy
Utility Artifacts
Idol of Oblivion
67%inclusion2 decks3 decks
63%synergy
Swiftfoot Boots
67%inclusion2 decks3 decks
41%synergy
Symmetry Matrix
33%inclusion1 decks3 decks
33%synergy
Mirror Box
33%inclusion1 decks3 decks
30%synergy
Monster Manual
33%inclusion1 decks3 decks
31%synergy
Winged Boots
33%inclusion1 decks3 decks
32%synergy
Combine Chrysalis
33%inclusion1 decks3 decks
29%synergy
Kefnet's Monument
33%inclusion1 decks3 decks
32%synergy
Bident of Thassa
33%inclusion1 decks3 decks
26%synergy
Enchantments
Fisher's Talent
50%inclusion1 decks2 decks
48%synergy
Kozilek's Unsealing
50%inclusion1 decks2 decks
47%synergy
Utopia Sprawl
33%inclusion1 decks3 decks
27%synergy
Verity Circle
33%inclusion1 decks3 decks
33%synergy
Monastery Siege
33%inclusion1 decks3 decks
33%synergy
Garruk's Uprising
33%inclusion1 decks3 decks
17%synergy
Aqueous Form
33%inclusion1 decks3 decks
29%synergy
Wizard Class
33%inclusion1 decks3 decks
28%synergy
Omen of the Sea
33%inclusion1 decks3 decks
32%synergy
Canopy Cover
33%inclusion1 decks3 decks
33%synergy
Wild Growth
33%inclusion1 decks3 decks
25%synergy
Tribute to the World Tree
33%inclusion1 decks3 decks
27%synergy
Rune of Flight
33%inclusion1 decks3 decks
33%synergy
Parallel Lives
33%inclusion1 decks3 decks
27%synergy
Hadana's Climb
33%inclusion1 decks3 decks
29%synergy
Colossal Majesty
33%inclusion1 decks3 decks
32%synergy
Elemental Bond
33%inclusion1 decks3 decks
28%synergy
Court of Bounty
33%inclusion1 decks3 decks
33%synergy
Bounty of the Luxa
33%inclusion1 decks3 decks
32%synergy
Growing Rites of Itlimoc
33%inclusion1 decks3 decks
27%synergy
Battles
Invasion of Zendikar
67%inclusion2 decks3 decks
65%synergy
Planeswalkers
Garruk Wildspeaker
33%inclusion1 decks3 decks
33%synergy
Oko, Thief of Crowns
33%inclusion1 decks3 decks
26%synergy
Nissa, Ascended Animist
33%inclusion1 decks3 decks
32%synergy
Teferi, Master of Time
33%inclusion1 decks3 decks
32%synergy
Utility Lands
Reliquary Tower
67%inclusion2 decks3 decks
17%synergy
Mystic Sanctuary
33%inclusion1 decks3 decks
21%synergy
Alchemist's Refuge
33%inclusion1 decks3 decks
16%synergy
Lonely Sandbar
33%inclusion1 decks3 decks
29%synergy
Mosswort Bridge
33%inclusion1 decks3 decks
16%synergy
Tranquil Thicket
33%inclusion1 decks3 decks
29%synergy
Great Hall of the Citadel
33%inclusion1 decks3 decks
33%synergy
Temple of the False God
33%inclusion1 decks3 decks
18%synergy
Rogue's Passage
33%inclusion1 decks3 decks
11%synergy
Mana Artifacts
Arcane Signet
100%inclusion3 decks3 decks
37%synergy
Sol Ring
67%inclusion2 decks3 decks
-14%synergy
Talisman of Curiosity
67%inclusion2 decks3 decks
45%synergy
Simic Signet
33%inclusion1 decks3 decks
1%synergy
Thought Vessel
33%inclusion1 decks3 decks
13%synergy
Lands
Vineglimmer Snarl
100%inclusion3 decks3 decks
61%synergy
Temple of Mystery
100%inclusion3 decks3 decks
62%synergy
Island
100%inclusion3 decks3 decks
5%synergy
Forest
100%inclusion3 decks3 decks
5%synergy
Willowrush Verge
100%inclusion1 decks1 decks
84%synergy
Flooded Grove
100%inclusion3 decks3 decks
59%synergy
Hinterland Harbor
100%inclusion3 decks3 decks
41%synergy
Command Tower
67%inclusion2 decks3 decks
-19%synergy
Yavimaya Coast
67%inclusion2 decks3 decks
14%synergy
Waterlogged Grove
67%inclusion2 decks3 decks
46%synergy
Blighted Woodland
33%inclusion1 decks3 decks
26%synergy
Exotic Orchard
33%inclusion1 decks3 decks
9%synergy
Tangled Islet
33%inclusion1 decks3 decks
17%synergy
Barkchannel Pathway
33%inclusion1 decks3 decks
13%synergy
Overflowing Basin
33%inclusion1 decks3 decks
14%synergy
Botanical Sanctum
33%inclusion1 decks3 decks
21%synergy
Rimewood Falls
33%inclusion1 decks3 decks
24%synergy
Evolving Wilds
33%inclusion1 decks3 decks
8%synergy
Path of Ancestry
33%inclusion1 decks3 decks
16%synergy
Bala Ged Recovery
33%inclusion1 decks3 decks
23%synergy
Dreamroot Cascade
33%inclusion1 decks3 decks
-9%synergy
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