Koma, Cosmos Serpent (Commander) - Expensive Optimized Ramp

Alternate Names:

The Monstrous SerpentThe Monstrous Serpent

Koma, Cosmos Serpent
Rank #296
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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Ancient Tomb
100%inclusion3 decks3 decks
91%synergy
Rhystic Study
100%inclusion3 decks3 decks
78%synergy
Gaea's Cradle
100%inclusion3 decks3 decks
93%synergy
Fierce Guardianship
100%inclusion3 decks3 decks
83%synergy
Cyclonic Rift
100%inclusion3 decks3 decks
74%synergy
Crop Rotation
67%inclusion2 decks3 decks
53%synergy
Consecrated Sphinx
67%inclusion2 decks3 decks
58%synergy
Seedborn Muse
67%inclusion2 decks3 decks
51%synergy
Force of Will
67%inclusion2 decks3 decks
57%synergy
Worldly Tutor
67%inclusion2 decks3 decks
51%synergy
Creatures
Eternal Witness
100%inclusion3 decks3 decks
79%synergy
Spark Double
100%inclusion3 decks3 decks
90%synergy
Sakashima of a Thousand Faces
100%inclusion3 decks3 decks
95%synergy
Sakashima the Impostor
100%inclusion3 decks3 decks
97%synergy
Serpent of Yawning Depths
100%inclusion3 decks3 decks
94%synergy
Adrix and Nev, Twincasters
67%inclusion2 decks3 decks
58%synergy
Garruk's Packleader
67%inclusion2 decks3 decks
64%synergy
Aesi, Tyrant of Gyre Strait
67%inclusion2 decks3 decks
50%synergy
Llanowar Elves
67%inclusion2 decks3 decks
39%synergy
Craterhoof Behemoth
67%inclusion2 decks3 decks
57%synergy
Ohran Frostfang
67%inclusion2 decks3 decks
63%synergy
Birds of Paradise
67%inclusion2 decks3 decks
39%synergy
Spawning Kraken
67%inclusion2 decks3 decks
59%synergy
Tatyova, Benthic Druid
33%inclusion1 decks3 decks
2%synergy
Koma, World-Eater
33%inclusion1 decks3 decks
20%synergy
High Fae Trickster
33%inclusion1 decks3 decks
30%synergy
Enduring Vitality
33%inclusion1 decks3 decks
26%synergy
Roaming Throne
33%inclusion1 decks3 decks
25%synergy
Elvish Mystic
33%inclusion1 decks3 decks
9%synergy
Spellseeker
33%inclusion1 decks3 decks
31%synergy
Junk Winder
33%inclusion1 decks3 decks
27%synergy
Elvish Spirit Guide
33%inclusion1 decks3 decks
29%synergy
Fanatic of Rhonas
33%inclusion1 decks3 decks
28%synergy
Kinnan, Bonder Prodigy
33%inclusion1 decks3 decks
30%synergy
Timeless Witness
33%inclusion1 decks3 decks
31%synergy
Llanowar Tribe
33%inclusion1 decks3 decks
32%synergy
Hullbreaker Horror
33%inclusion1 decks3 decks
16%synergy
Guardian Augmenter
33%inclusion1 decks3 decks
32%synergy
Vorinclex, Voice of Hunger
33%inclusion1 decks3 decks
30%synergy
Fyndhorn Elves
33%inclusion1 decks3 decks
18%synergy
Sakura-Tribe Elder
33%inclusion1 decks3 decks
14%synergy
Ledger Shredder
33%inclusion1 decks3 decks
32%synergy
Uro, Titan of Nature's Wrath
33%inclusion1 decks3 decks
24%synergy
Nightshade Dryad
33%inclusion1 decks3 decks
32%synergy
Instants
Mana Drain
100%inclusion3 decks3 decks
84%synergy
Counterspell
100%inclusion3 decks3 decks
50%synergy
An Offer You Can't Refuse
67%inclusion2 decks3 decks
44%synergy
Heroic Intervention
67%inclusion2 decks3 decks
36%synergy
Negate
67%inclusion2 decks3 decks
41%synergy
Archdruid's Charm
67%inclusion2 decks3 decks
60%synergy
Second Harvest
67%inclusion2 decks3 decks
60%synergy
Chord of Calling
67%inclusion2 decks3 decks
59%synergy
Beast Within
67%inclusion2 decks3 decks
16%synergy
Swan Song
67%inclusion2 decks3 decks
48%synergy
Mystical Tutor
67%inclusion2 decks3 decks
57%synergy
Muddle the Mixture
33%inclusion1 decks3 decks
29%synergy
Blustersquall
33%inclusion1 decks3 decks
33%synergy
Growth Spiral
33%inclusion1 decks3 decks
-11%synergy
Brainstorm
33%inclusion1 decks3 decks
19%synergy
Mystic Reflection
33%inclusion1 decks3 decks
31%synergy
Keep Watch
33%inclusion1 decks3 decks
33%synergy
Noxious Revival
33%inclusion1 decks3 decks
27%synergy
Cryptic Command
33%inclusion1 decks3 decks
32%synergy
Force of Negation
33%inclusion1 decks3 decks
25%synergy
Lazotep Plating
33%inclusion1 decks3 decks
33%synergy
Sink into Stupor
33%inclusion1 decks3 decks
22%synergy
Abjure
33%inclusion1 decks3 decks
33%synergy
Double Major
33%inclusion1 decks3 decks
25%synergy
Long River's Pull
33%inclusion1 decks3 decks
30%synergy
Pact of Negation
33%inclusion1 decks3 decks
26%synergy
Sorceries
Three Visits
100%inclusion3 decks3 decks
77%synergy
Skyshroud Claim
100%inclusion3 decks3 decks
91%synergy
Farseek
100%inclusion3 decks3 decks
75%synergy
Finale of Devastation
100%inclusion3 decks3 decks
88%synergy
Nature's Lore
100%inclusion3 decks3 decks
70%synergy
Whelming Wave
100%inclusion3 decks3 decks
89%synergy
Kodama's Reach
67%inclusion2 decks3 decks
30%synergy
Cultivate
67%inclusion2 decks3 decks
20%synergy
Green Sun's Zenith
33%inclusion1 decks3 decks
25%synergy
Quantum Misalignment
33%inclusion1 decks3 decks
30%synergy
Mind Spring
33%inclusion1 decks3 decks
32%synergy
Curse of the Swine
33%inclusion1 decks3 decks
22%synergy
Lórien Revealed
33%inclusion1 decks3 decks
30%synergy
Rampant Growth
33%inclusion1 decks3 decks
-7%synergy
Search for Tomorrow
33%inclusion1 decks3 decks
29%synergy
Irenicus's Vile Duplication
33%inclusion1 decks3 decks
27%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
Regrowth
33%inclusion1 decks3 decks
30%synergy
Utility Artifacts
Helm of the Host
67%inclusion2 decks3 decks
61%synergy
Swiftfoot Boots
67%inclusion2 decks3 decks
41%synergy
Lightning Greaves
67%inclusion2 decks3 decks
45%synergy
The One Ring
33%inclusion1 decks3 decks
26%synergy
Nevinyrral's Disk
33%inclusion1 decks3 decks
33%synergy
Eldrazi Monument
33%inclusion1 decks3 decks
33%synergy
Enchantments
Doubling Season
100%inclusion3 decks3 decks
90%synergy
Tribute to the World Tree
100%inclusion3 decks3 decks
94%synergy
Parallel Lives
100%inclusion3 decks3 decks
94%synergy
Sylvan Library
100%inclusion3 decks3 decks
91%synergy
Elemental Bond
100%inclusion3 decks3 decks
94%synergy
Mystic Remora
67%inclusion2 decks3 decks
51%synergy
Utopia Sprawl
33%inclusion1 decks3 decks
27%synergy
Carpet of Flowers
33%inclusion1 decks3 decks
31%synergy
Wild Growth
33%inclusion1 decks3 decks
25%synergy
Defense of the Heart
33%inclusion1 decks3 decks
31%synergy
Abundance
33%inclusion1 decks3 decks
31%synergy
Planeswalkers
Oko, Thief of Crowns
33%inclusion1 decks3 decks
26%synergy
Utility Lands
Mystic Sanctuary
67%inclusion2 decks3 decks
54%synergy
Command Beacon
67%inclusion2 decks3 decks
63%synergy
Yavimaya, Cradle of Growth
67%inclusion2 decks3 decks
45%synergy
Boseiju, Who Endures
67%inclusion2 decks3 decks
44%synergy
Reliquary Tower
67%inclusion2 decks3 decks
17%synergy
Mistrise Village
50%inclusion1 decks2 decks
39%synergy
Evendo, Waking Haven
50%inclusion1 decks2 decks
45%synergy
Wasteland
33%inclusion1 decks3 decks
32%synergy
Alchemist's Refuge
33%inclusion1 decks3 decks
16%synergy
Glacial Chasm
33%inclusion1 decks3 decks
32%synergy
Field of the Dead
33%inclusion1 decks3 decks
27%synergy
Strip Mine
33%inclusion1 decks3 decks
30%synergy
Three Tree City
33%inclusion1 decks3 decks
28%synergy
Castle Garenbrig
33%inclusion1 decks3 decks
29%synergy
Mana Artifacts
Arcane Signet
100%inclusion3 decks3 decks
37%synergy
Sol Ring
100%inclusion3 decks3 decks
19%synergy
Thought Vessel
100%inclusion3 decks3 decks
80%synergy
Talisman of Curiosity
67%inclusion2 decks3 decks
45%synergy
Lotus Petal
33%inclusion1 decks3 decks
26%synergy
Simic Signet
33%inclusion1 decks3 decks
1%synergy
Mana Vault
33%inclusion1 decks3 decks
27%synergy
Chrome Mox
33%inclusion1 decks3 decks
27%synergy
Mox Diamond
33%inclusion1 decks3 decks
28%synergy
Lands
Command Tower
100%inclusion3 decks3 decks
15%synergy
Breeding Pool
100%inclusion3 decks3 decks
55%synergy
Tropical Island
100%inclusion3 decks3 decks
86%synergy
Island
100%inclusion3 decks3 decks
5%synergy
Forest
100%inclusion3 decks3 decks
5%synergy
Misty Rainforest
67%inclusion2 decks3 decks
36%synergy
Yavimaya Coast
67%inclusion2 decks3 decks
14%synergy
Barkchannel Pathway
67%inclusion2 decks3 decks
46%synergy
Waterlogged Grove
67%inclusion2 decks3 decks
46%synergy
Hedge Maze
67%inclusion2 decks3 decks
47%synergy
Rejuvenating Springs
67%inclusion2 decks3 decks
23%synergy
Willowrush Verge
50%inclusion1 decks2 decks
34%synergy
Blighted Woodland
33%inclusion1 decks3 decks
26%synergy
Prismatic Vista
33%inclusion1 decks3 decks
26%synergy
Simic Growth Chamber
33%inclusion1 decks3 decks
-15%synergy
Fabled Passage
33%inclusion1 decks3 decks
19%synergy
Myriad Landscape
33%inclusion1 decks3 decks
11%synergy
Windswept Heath
33%inclusion1 decks3 decks
23%synergy
Horizon of Progress
33%inclusion1 decks3 decks
28%synergy
Wooded Foothills
33%inclusion1 decks3 decks
24%synergy
Verdant Catacombs
33%inclusion1 decks3 decks
24%synergy
Reflecting Pool
33%inclusion1 decks3 decks
30%synergy
Temple of Mystery
33%inclusion1 decks3 decks
-5%synergy
Talon Gates of Madara
33%inclusion1 decks3 decks
26%synergy
Sink into Stupor
33%inclusion1 decks3 decks
22%synergy
Gemstone Caverns
33%inclusion1 decks3 decks
27%synergy
Mana Confluence
33%inclusion1 decks3 decks
28%synergy
Bala Ged Recovery
33%inclusion1 decks3 decks
23%synergy
Flooded Grove
33%inclusion1 decks3 decks
-7%synergy
Polluted Delta
33%inclusion1 decks3 decks
23%synergy
City of Brass
33%inclusion1 decks3 decks
27%synergy
Flooded Strand
33%inclusion1 decks3 decks
22%synergy
Hinterland Harbor
33%inclusion1 decks3 decks
-26%synergy
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