Koma, Cosmos Serpent (Commander) - Expensive Good Stuff

Alternate Names:

The Monstrous SerpentThe Monstrous Serpent

Koma, Cosmos Serpent
Rank #298
2decks
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%inclusion2 decks2 decks
91%synergy
Crop Rotation
100%inclusion2 decks2 decks
87%synergy
Consecrated Sphinx
100%inclusion2 decks2 decks
91%synergy
The One Ring
100%inclusion2 decks2 decks
92%synergy
Rhystic Study
100%inclusion2 decks2 decks
78%synergy
Mana Vault
100%inclusion2 decks2 decks
94%synergy
Gaea's Cradle
100%inclusion2 decks2 decks
93%synergy
Force of Will
100%inclusion2 decks2 decks
90%synergy
Fierce Guardianship
100%inclusion2 decks2 decks
83%synergy
Cyclonic Rift
100%inclusion2 decks2 decks
74%synergy
Creatures
Spark Double
100%inclusion2 decks2 decks
90%synergy
Sakashima of a Thousand Faces
100%inclusion2 decks2 decks
95%synergy
Sylvan Safekeeper
100%inclusion2 decks2 decks
96%synergy
Birds of Paradise
100%inclusion2 decks2 decks
72%synergy
Displacer Kitten
50%inclusion1 decks2 decks
46%synergy
Peregrine Drake
50%inclusion1 decks2 decks
46%synergy
Bloom Tender
50%inclusion1 decks2 decks
46%synergy
Collector Ouphe
50%inclusion1 decks2 decks
49%synergy
Adrix and Nev, Twincasters
50%inclusion1 decks2 decks
42%synergy
Garruk's Packleader
50%inclusion1 decks2 decks
48%synergy
Koma, World-Eater
50%inclusion1 decks2 decks
37%synergy
Enduring Vitality
50%inclusion1 decks2 decks
43%synergy
Roaming Throne
50%inclusion1 decks2 decks
42%synergy
Elvish Mystic
50%inclusion1 decks2 decks
26%synergy
Junk Winder
50%inclusion1 decks2 decks
43%synergy
Sowing Mycospawn
50%inclusion1 decks2 decks
48%synergy
Aesi, Tyrant of Gyre Strait
50%inclusion1 decks2 decks
33%synergy
Wandering Archaic
50%inclusion1 decks2 decks
45%synergy
Llanowar Elves
50%inclusion1 decks2 decks
22%synergy
Gilded Drake
50%inclusion1 decks2 decks
48%synergy
Colossal Skyturtle
50%inclusion1 decks2 decks
44%synergy
Craterhoof Behemoth
50%inclusion1 decks2 decks
41%synergy
Kinnan, Bonder Prodigy
50%inclusion1 decks2 decks
47%synergy
Esix, Fractal Bloom
50%inclusion1 decks2 decks
46%synergy
Sakashima the Impostor
50%inclusion1 decks2 decks
47%synergy
Ohran Frostfang
50%inclusion1 decks2 decks
46%synergy
Arixmethes, Slumbering Isle
50%inclusion1 decks2 decks
37%synergy
Serpent of Yawning Depths
50%inclusion1 decks2 decks
44%synergy
Hullbreaker Horror
50%inclusion1 decks2 decks
32%synergy
Vorinclex, Voice of Hunger
50%inclusion1 decks2 decks
47%synergy
Fyndhorn Elves
50%inclusion1 decks2 decks
34%synergy
Spellskite
50%inclusion1 decks2 decks
45%synergy
Sakura-Tribe Elder
50%inclusion1 decks2 decks
31%synergy
Delighted Halfling
50%inclusion1 decks2 decks
39%synergy
Instants
An Offer You Can't Refuse
100%inclusion2 decks2 decks
77%synergy
Heroic Intervention
100%inclusion2 decks2 decks
70%synergy
Archdruid's Charm
100%inclusion2 decks2 decks
94%synergy
Force of Vigor
100%inclusion2 decks2 decks
95%synergy
Beast Within
100%inclusion2 decks2 decks
50%synergy
Counterspell
100%inclusion2 decks2 decks
50%synergy
Veil of Summer
50%inclusion1 decks2 decks
44%synergy
Return of the Wildspeaker
50%inclusion1 decks2 decks
40%synergy
Krosan Grip
50%inclusion1 decks2 decks
42%synergy
Mindbreak Trap
50%inclusion1 decks2 decks
45%synergy
Legolas's Quick Reflexes
50%inclusion1 decks2 decks
47%synergy
Chord of Calling
50%inclusion1 decks2 decks
42%synergy
Nature's Claim
50%inclusion1 decks2 decks
40%synergy
Reality Shift
50%inclusion1 decks2 decks
35%synergy
Mana Drain
50%inclusion1 decks2 decks
34%synergy
Resculpt
50%inclusion1 decks2 decks
44%synergy
Flusterstorm
50%inclusion1 decks2 decks
43%synergy
Swan Song
50%inclusion1 decks2 decks
31%synergy
Delay
50%inclusion1 decks2 decks
48%synergy
Arcane Denial
50%inclusion1 decks2 decks
28%synergy
Force of Negation
50%inclusion1 decks2 decks
41%synergy
Sink into Stupor
50%inclusion1 decks2 decks
39%synergy
Borne Upon a Wind
50%inclusion1 decks2 decks
49%synergy
Worldly Tutor
50%inclusion1 decks2 decks
35%synergy
Mystical Tutor
50%inclusion1 decks2 decks
41%synergy
Sorceries
Finale of Devastation
100%inclusion2 decks2 decks
88%synergy
Irenicus's Vile Duplication
100%inclusion2 decks2 decks
94%synergy
Green Sun's Zenith
50%inclusion1 decks2 decks
41%synergy
Eldritch Evolution
50%inclusion1 decks2 decks
46%synergy
Kodama's Reach
50%inclusion1 decks2 decks
14%synergy
Flare of Cultivation
50%inclusion1 decks2 decks
48%synergy
Quantum Misalignment
50%inclusion1 decks2 decks
47%synergy
Three Visits
50%inclusion1 decks2 decks
27%synergy
Triumph of the Hordes
50%inclusion1 decks2 decks
47%synergy
Turntimber Symbiosis
50%inclusion1 decks2 decks
48%synergy
Neoform
50%inclusion1 decks2 decks
46%synergy
Farseek
50%inclusion1 decks2 decks
25%synergy
Sea Gate Restoration
50%inclusion1 decks2 decks
45%synergy
Tempt with Discovery
50%inclusion1 decks2 decks
46%synergy
Temporal Manipulation
50%inclusion1 decks2 decks
49%synergy
Nature's Lore
50%inclusion1 decks2 decks
20%synergy
Rampant Growth
50%inclusion1 decks2 decks
9%synergy
Cultivate
50%inclusion1 decks2 decks
3%synergy
Whelming Wave
50%inclusion1 decks2 decks
39%synergy
Utility Artifacts
Static Orb
50%inclusion1 decks2 decks
50%synergy
Sensei's Divining Top
50%inclusion1 decks2 decks
46%synergy
Winter Orb
50%inclusion1 decks2 decks
50%synergy
Null Rod
50%inclusion1 decks2 decks
50%synergy
The Great Henge
50%inclusion1 decks2 decks
41%synergy
Phyrexian Altar
50%inclusion1 decks2 decks
50%synergy
Whispersilk Cloak
50%inclusion1 decks2 decks
48%synergy
Lightning Greaves
50%inclusion1 decks2 decks
28%synergy
Smokestack
50%inclusion1 decks2 decks
50%synergy
Enchantments
Doubling Season
100%inclusion2 decks2 decks
90%synergy
Parallel Lives
100%inclusion2 decks2 decks
94%synergy
Mystic Remora
100%inclusion2 decks2 decks
85%synergy
Kindred Discovery
50%inclusion1 decks2 decks
40%synergy
Carpet of Flowers
50%inclusion1 decks2 decks
47%synergy
Tribute to the World Tree
50%inclusion1 decks2 decks
44%synergy
Sylvan Library
50%inclusion1 decks2 decks
41%synergy
Quest for Renewal
50%inclusion1 decks2 decks
48%synergy
Elemental Bond
50%inclusion1 decks2 decks
44%synergy
Defense of the Heart
50%inclusion1 decks2 decks
48%synergy
Planeswalkers
Oko, Thief of Crowns
50%inclusion1 decks2 decks
43%synergy
Utility Lands
Mistrise Village
100%inclusion2 decks2 decks
89%synergy
Boseiju, Who Endures
100%inclusion2 decks2 decks
78%synergy
Three Tree City
100%inclusion2 decks2 decks
95%synergy
Otawara, Soaring City
100%inclusion2 decks2 decks
81%synergy
Minamo, School at Water's Edge
50%inclusion1 decks2 decks
44%synergy
Boseiju, Who Shelters All
50%inclusion1 decks2 decks
49%synergy
Urza's Saga
50%inclusion1 decks2 decks
44%synergy
Emergence Zone
50%inclusion1 decks2 decks
46%synergy
Shifting Woodland
50%inclusion1 decks2 decks
43%synergy
Command Beacon
50%inclusion1 decks2 decks
46%synergy
Nykthos, Shrine to Nyx
50%inclusion1 decks2 decks
47%synergy
Yavimaya, Cradle of Growth
50%inclusion1 decks2 decks
28%synergy
Mana Artifacts
Sol Ring
100%inclusion2 decks2 decks
19%synergy
Arcane Signet
50%inclusion1 decks2 decks
-13%synergy
Lotus Petal
50%inclusion1 decks2 decks
43%synergy
Lands
Command Tower
100%inclusion2 decks2 decks
15%synergy
Misty Rainforest
100%inclusion2 decks2 decks
69%synergy
Breeding Pool
100%inclusion2 decks2 decks
54%synergy
Tropical Island
100%inclusion2 decks2 decks
86%synergy
Island
100%inclusion2 decks2 decks
5%synergy
Forest
100%inclusion2 decks2 decks
5%synergy
Hedge Maze
100%inclusion2 decks2 decks
80%synergy
Rejuvenating Springs
100%inclusion2 decks2 decks
56%synergy
Prismatic Vista
50%inclusion1 decks2 decks
43%synergy
Exotic Orchard
50%inclusion1 decks2 decks
26%synergy
Windswept Heath
50%inclusion1 decks2 decks
40%synergy
Turntimber Symbiosis
50%inclusion1 decks2 decks
48%synergy
Yavimaya Coast
50%inclusion1 decks2 decks
-2%synergy
Sea Gate Restoration
50%inclusion1 decks2 decks
45%synergy
Barkchannel Pathway
50%inclusion1 decks2 decks
30%synergy
Snow-Covered Island
50%inclusion1 decks2 decks
43%synergy
Snow-Covered Forest
50%inclusion1 decks2 decks
43%synergy
Wooded Foothills
50%inclusion1 decks2 decks
40%synergy
Verdant Catacombs
50%inclusion1 decks2 decks
40%synergy
Waterlogged Grove
50%inclusion1 decks2 decks
29%synergy
Plaza of Heroes
50%inclusion1 decks2 decks
49%synergy
Sink into Stupor
50%inclusion1 decks2 decks
39%synergy
Gemstone Caverns
50%inclusion1 decks2 decks
44%synergy
Willowrush Verge
50%inclusion1 decks2 decks
34%synergy
Mana Confluence
50%inclusion1 decks2 decks
44%synergy
Flooded Grove
50%inclusion1 decks2 decks
9%synergy
Dreamroot Cascade
50%inclusion1 decks2 decks
8%synergy
Polluted Delta
50%inclusion1 decks2 decks
40%synergy
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