Koma, Cosmos Serpent (Commander) - Expensive Core Tokens

Alternate Names:

The Monstrous SerpentThe Monstrous Serpent

Koma, Cosmos Serpent
Rank #307
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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Lands
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The Terror of Serpent's Pass
50%inclusion1 decks2 decks
50%synergy
Game Changers
Seedborn Muse
33%inclusion1 decks3 decks
18%synergy
Creatures
Adrix and Nev, Twincasters
100%inclusion3 decks3 decks
92%synergy
Roaming Throne
100%inclusion3 decks3 decks
92%synergy
Junk Winder
100%inclusion3 decks3 decks
93%synergy
Aesi, Tyrant of Gyre Strait
100%inclusion3 decks3 decks
83%synergy
Serpent of Yawning Depths
100%inclusion3 decks3 decks
94%synergy
Hullbreaker Horror
100%inclusion3 decks3 decks
82%synergy
Spawning Kraken
100%inclusion3 decks3 decks
93%synergy
Summon: Leviathan
100%inclusion2 decks2 decks
93%synergy
Koma, World-Eater
67%inclusion2 decks3 decks
53%synergy
Enduring Vitality
67%inclusion2 decks3 decks
59%synergy
Elvish Mystic
67%inclusion2 decks3 decks
43%synergy
Murkfiend Liege
67%inclusion2 decks3 decks
52%synergy
Llanowar Elves
67%inclusion2 decks3 decks
39%synergy
Slinn Voda, the Rising Deep
67%inclusion2 decks3 decks
60%synergy
Spark Double
67%inclusion2 decks3 decks
57%synergy
Sakashima of a Thousand Faces
67%inclusion2 decks3 decks
62%synergy
Esix, Fractal Bloom
67%inclusion2 decks3 decks
63%synergy
Sakashima the Impostor
67%inclusion2 decks3 decks
64%synergy
Arixmethes, Slumbering Isle
67%inclusion2 decks3 decks
53%synergy
Birds of Paradise
67%inclusion2 decks3 decks
39%synergy
Fyndhorn Elves
67%inclusion2 decks3 decks
51%synergy
Iceridge Serpent
50%inclusion1 decks2 decks
50%synergy
Sin, Unending Cataclysm
50%inclusion1 decks2 decks
47%synergy
Tatyova, Benthic Druid
33%inclusion1 decks3 decks
2%synergy
Troyan, Gutsy Explorer
33%inclusion1 decks3 decks
30%synergy
Garruk's Packleader
33%inclusion1 decks3 decks
31%synergy
Circle of Dreams Druid
33%inclusion1 decks3 decks
31%synergy
Octomancer
33%inclusion1 decks3 decks
29%synergy
Xolatoyac, the Smiling Flood
33%inclusion1 decks3 decks
26%synergy
Rampaging Baloths
33%inclusion1 decks3 decks
16%synergy
Eternal Witness
33%inclusion1 decks3 decks
12%synergy
Harbor Serpent
33%inclusion1 decks3 decks
33%synergy
Nadir Kraken
33%inclusion1 decks3 decks
29%synergy
Scrapdiver Serpent
33%inclusion1 decks3 decks
33%synergy
Kona, Rescue Beastie
33%inclusion1 decks3 decks
32%synergy
Fanatic of Rhonas
33%inclusion1 decks3 decks
28%synergy
Craterhoof Behemoth
33%inclusion1 decks3 decks
24%synergy
Enduring Curiosity
33%inclusion1 decks3 decks
30%synergy
Archetype of Imagination
33%inclusion1 decks3 decks
29%synergy
Ohran Frostfang
33%inclusion1 decks3 decks
30%synergy
Tolarian Terror
33%inclusion1 decks3 decks
33%synergy
Sword Coast Serpent
33%inclusion1 decks3 decks
32%synergy
Sakura-Tribe Elder
33%inclusion1 decks3 decks
14%synergy
Instants
Heroic Intervention
100%inclusion3 decks3 decks
70%synergy
Second Harvest
100%inclusion3 decks3 decks
94%synergy
Return of the Wildspeaker
67%inclusion2 decks3 decks
56%synergy
Mana Drain
67%inclusion2 decks3 decks
51%synergy
Counterspell
67%inclusion2 decks3 decks
17%synergy
Double Major
67%inclusion2 decks3 decks
58%synergy
Lifestream's Blessing
50%inclusion1 decks2 decks
49%synergy
Tifa's Limit Break
50%inclusion1 decks2 decks
50%synergy
Biosynthic Burst
50%inclusion1 decks2 decks
49%synergy
Artisan's Sorrow
33%inclusion1 decks3 decks
33%synergy
An Offer You Can't Refuse
33%inclusion1 decks3 decks
10%synergy
Negate
33%inclusion1 decks3 decks
7%synergy
Growth Spiral
33%inclusion1 decks3 decks
-11%synergy
Brainstorm
33%inclusion1 decks3 decks
19%synergy
Krosan Grip
33%inclusion1 decks3 decks
26%synergy
Mindbreak Trap
33%inclusion1 decks3 decks
28%synergy
Disruption Protocol
33%inclusion1 decks3 decks
33%synergy
Break Down
33%inclusion1 decks3 decks
33%synergy
Sorceries
Kodama's Reach
100%inclusion3 decks3 decks
64%synergy
Cultivate
100%inclusion3 decks3 decks
53%synergy
Irenicus's Vile Duplication
100%inclusion3 decks3 decks
94%synergy
Overwhelming Stampede
100%inclusion3 decks3 decks
88%synergy
Quantum Misalignment
67%inclusion2 decks3 decks
64%synergy
Rampant Growth
67%inclusion2 decks3 decks
26%synergy
Explore
67%inclusion2 decks3 decks
46%synergy
Whelming Wave
67%inclusion2 decks3 decks
55%synergy
Three Visits
33%inclusion1 decks3 decks
10%synergy
Skyshroud Claim
33%inclusion1 decks3 decks
24%synergy
Farseek
33%inclusion1 decks3 decks
8%synergy
Finale of Devastation
33%inclusion1 decks3 decks
21%synergy
Nature's Lore
33%inclusion1 decks3 decks
3%synergy
Shamanic Revelation
33%inclusion1 decks3 decks
28%synergy
Rite of Replication
33%inclusion1 decks3 decks
26%synergy
Utility Artifacts
Helm of the Host
67%inclusion2 decks3 decks
61%synergy
Combine Chrysalis
67%inclusion2 decks3 decks
62%synergy
The Earth Crystal
50%inclusion1 decks2 decks
46%synergy
Crucible of Worlds
33%inclusion1 decks3 decks
29%synergy
Mirror Box
33%inclusion1 decks3 decks
30%synergy
Banner of Kinship
33%inclusion1 decks3 decks
31%synergy
Champion's Helm
33%inclusion1 decks3 decks
33%synergy
Swiftfoot Boots
33%inclusion1 decks3 decks
8%synergy
Bident of Thassa
33%inclusion1 decks3 decks
26%synergy
Sapphire Medallion
33%inclusion1 decks3 decks
30%synergy
Enchantments
Kindred Discovery
100%inclusion3 decks3 decks
90%synergy
Doubling Season
100%inclusion3 decks3 decks
90%synergy
Parallel Lives
100%inclusion3 decks3 decks
94%synergy
Tribute to the World Tree
67%inclusion2 decks3 decks
60%synergy
Elemental Bond
67%inclusion2 decks3 decks
61%synergy
Exploration
33%inclusion1 decks3 decks
20%synergy
Beastmaster Ascension
33%inclusion1 decks3 decks
30%synergy
Garruk's Uprising
33%inclusion1 decks3 decks
17%synergy
Walk-In Closet // Forgotten Cellar
33%inclusion1 decks3 decks
30%synergy
Mystic Remora
33%inclusion1 decks3 decks
18%synergy
Sylvan Library
33%inclusion1 decks3 decks
24%synergy
Leyline of Anticipation
33%inclusion1 decks3 decks
29%synergy
Reflections of Littjara
33%inclusion1 decks3 decks
26%synergy
Mirror Room // Fractured Realm
33%inclusion1 decks3 decks
32%synergy
Growing Rites of Itlimoc
33%inclusion1 decks3 decks
27%synergy
Planeswalkers
Oko, Thief of Crowns
67%inclusion2 decks3 decks
60%synergy
Utility Lands
Yavimaya, Cradle of Growth
67%inclusion2 decks3 decks
45%synergy
Reliquary Tower
67%inclusion2 decks3 decks
17%synergy
Three Tree City
67%inclusion2 decks3 decks
62%synergy
Mistrise Village
50%inclusion1 decks2 decks
39%synergy
Evendo, Waking Haven
50%inclusion1 decks2 decks
45%synergy
Lotus Field
33%inclusion1 decks3 decks
32%synergy
Mystic Sanctuary
33%inclusion1 decks3 decks
21%synergy
Arcane Lighthouse
33%inclusion1 decks3 decks
33%synergy
Vesuva
33%inclusion1 decks3 decks
28%synergy
Command Beacon
33%inclusion1 decks3 decks
29%synergy
Castle Vantress
33%inclusion1 decks3 decks
26%synergy
Temple of the False God
33%inclusion1 decks3 decks
18%synergy
Rogue's Passage
33%inclusion1 decks3 decks
12%synergy
Mana Artifacts
Arcane Signet
100%inclusion3 decks3 decks
37%synergy
Sol Ring
100%inclusion3 decks3 decks
19%synergy
Simic Signet
67%inclusion2 decks3 decks
35%synergy
Talisman of Curiosity
67%inclusion2 decks3 decks
45%synergy
Thought Vessel
67%inclusion2 decks3 decks
46%synergy
Patchwork Banner
33%inclusion1 decks3 decks
30%synergy
Lands
Command Tower
100%inclusion3 decks3 decks
15%synergy
Island
100%inclusion3 decks3 decks
5%synergy
Forest
100%inclusion3 decks3 decks
5%synergy
Willowrush Verge
100%inclusion2 decks2 decks
83%synergy
Hinterland Harbor
100%inclusion3 decks3 decks
40%synergy
Vineglimmer Snarl
67%inclusion2 decks3 decks
28%synergy
Yavimaya Coast
67%inclusion2 decks3 decks
14%synergy
Overflowing Basin
67%inclusion2 decks3 decks
47%synergy
Temple of Mystery
67%inclusion2 decks3 decks
29%synergy
Rejuvenating Springs
67%inclusion2 decks3 decks
23%synergy
Flooded Grove
67%inclusion2 decks3 decks
25%synergy
Dreamroot Cascade
67%inclusion2 decks3 decks
24%synergy
Simic Growth Chamber
33%inclusion1 decks3 decks
-15%synergy
Misty Rainforest
33%inclusion1 decks3 decks
2%synergy
Fabled Passage
33%inclusion1 decks3 decks
19%synergy
Terramorphic Expanse
33%inclusion1 decks3 decks
14%synergy
Breeding Pool
33%inclusion1 decks3 decks
-13%synergy
Myriad Landscape
33%inclusion1 decks3 decks
12%synergy
Exotic Orchard
33%inclusion1 decks3 decks
9%synergy
Tanglepool Bridge
33%inclusion1 decks3 decks
28%synergy
Tangled Islet
33%inclusion1 decks3 decks
17%synergy
Barkchannel Pathway
33%inclusion1 decks3 decks
13%synergy
Reflecting Pool
33%inclusion1 decks3 decks
30%synergy
Waterlogged Grove
33%inclusion1 decks3 decks
13%synergy
Tropical Island
33%inclusion1 decks3 decks
19%synergy
Cavern of Souls
33%inclusion1 decks3 decks
27%synergy
Path of Ancestry
33%inclusion1 decks3 decks
16%synergy
Lush Oasis
33%inclusion1 decks3 decks
27%synergy
Brokers Hideout
33%inclusion1 decks3 decks
28%synergy
Hedge Maze
33%inclusion1 decks3 decks
14%synergy
Thornwood Falls
33%inclusion1 decks3 decks
16%synergy
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