Koma, Cosmos Serpent (Commander) - Expensive Upgraded Clones

Alternate Names:

The Monstrous SerpentThe Monstrous Serpent

Koma, Cosmos Serpent
Rank #297
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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Rhystic Study
100%inclusion3 decks3 decks
78%synergy
Consecrated Sphinx
67%inclusion2 decks3 decks
58%synergy
Fierce Guardianship
67%inclusion2 decks3 decks
49%synergy
Cyclonic Rift
67%inclusion2 decks3 decks
41%synergy
Gaea's Cradle
33%inclusion1 decks3 decks
26%synergy
Creatures
Spark Double
100%inclusion3 decks3 decks
90%synergy
Adrix and Nev, Twincasters
100%inclusion3 decks3 decks
92%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
Birds of Paradise
100%inclusion3 decks3 decks
72%synergy
Roaming Throne
67%inclusion2 decks3 decks
59%synergy
Craterhoof Behemoth
67%inclusion2 decks3 decks
57%synergy
Junk Winder
67%inclusion2 decks3 decks
60%synergy
Llanowar Elves
67%inclusion2 decks3 decks
39%synergy
Esix, Fractal Bloom
67%inclusion2 decks3 decks
63%synergy
Ohran Frostfang
67%inclusion2 decks3 decks
63%synergy
Spawning Kraken
67%inclusion2 decks3 decks
59%synergy
Summon: Leviathan
50%inclusion1 decks2 decks
43%synergy
Chameleon, Master of Disguise
50%inclusion1 decks2 decks
48%synergy
Aesi, Tyrant of Gyre Strait
33%inclusion1 decks3 decks
16%synergy
Arixmethes, Slumbering Isle
33%inclusion1 decks3 decks
20%synergy
Pirated Copy
33%inclusion1 decks3 decks
33%synergy
Undercover Operative
33%inclusion1 decks3 decks
32%synergy
Garruk's Packleader
33%inclusion1 decks3 decks
31%synergy
Koma, World-Eater
33%inclusion1 decks3 decks
20%synergy
Phyrexian Metamorph
33%inclusion1 decks3 decks
25%synergy
Elvish Mystic
33%inclusion1 decks3 decks
9%synergy
Skyserpent Seeker
33%inclusion1 decks3 decks
30%synergy
Murkfiend Liege
33%inclusion1 decks3 decks
19%synergy
Mirror Image
33%inclusion1 decks3 decks
32%synergy
Fanatic of Rhonas
33%inclusion1 decks3 decks
28%synergy
Progenitor Mimic
33%inclusion1 decks3 decks
29%synergy
Auton Soldier
33%inclusion1 decks3 decks
31%synergy
Archetype of Imagination
33%inclusion1 decks3 decks
29%synergy
Phantasmal Image
33%inclusion1 decks3 decks
30%synergy
Glasspool Mimic
33%inclusion1 decks3 decks
29%synergy
Champion of Lambholt
33%inclusion1 decks3 decks
28%synergy
Guardian Augmenter
33%inclusion1 decks3 decks
32%synergy
Sakura-Tribe Elder
33%inclusion1 decks3 decks
14%synergy
Instants
Krosan Grip
100%inclusion3 decks3 decks
92%synergy
Beast Within
100%inclusion3 decks3 decks
50%synergy
Heroic Intervention
100%inclusion3 decks3 decks
70%synergy
Mana Drain
100%inclusion3 decks3 decks
84%synergy
Growth Spiral
67%inclusion2 decks3 decks
22%synergy
Second Harvest
67%inclusion2 decks3 decks
60%synergy
Nature's Claim
67%inclusion2 decks3 decks
57%synergy
Counterspell
67%inclusion2 decks3 decks
17%synergy
Sublime Epiphany
33%inclusion1 decks3 decks
31%synergy
Chord of Calling
33%inclusion1 decks3 decks
26%synergy
Swan Song
33%inclusion1 decks3 decks
14%synergy
Veil of Summer
33%inclusion1 decks3 decks
27%synergy
Rapid Hybridization
33%inclusion1 decks3 decks
7%synergy
An Offer You Can't Refuse
33%inclusion1 decks3 decks
10%synergy
Return of the Wildspeaker
33%inclusion1 decks3 decks
23%synergy
Power Sink
33%inclusion1 decks3 decks
33%synergy
Wrap in Vigor
33%inclusion1 decks3 decks
32%synergy
Stubborn Denial
33%inclusion1 decks3 decks
31%synergy
Archdruid's Charm
33%inclusion1 decks3 decks
27%synergy
Legolas's Quick Reflexes
33%inclusion1 decks3 decks
31%synergy
Reality Shift
33%inclusion1 decks3 decks
19%synergy
Cackling Counterpart
33%inclusion1 decks3 decks
30%synergy
Lazotep Plating
33%inclusion1 decks3 decks
33%synergy
Spell Pierce
33%inclusion1 decks3 decks
30%synergy
Double Major
33%inclusion1 decks3 decks
25%synergy
Sorceries
Cultivate
100%inclusion3 decks3 decks
53%synergy
Irenicus's Vile Duplication
100%inclusion3 decks3 decks
94%synergy
Whelming Wave
100%inclusion3 decks3 decks
89%synergy
Quantum Misalignment
67%inclusion2 decks3 decks
64%synergy
Nature's Lore
67%inclusion2 decks3 decks
36%synergy
Kodama's Reach
67%inclusion2 decks3 decks
30%synergy
Three Visits
67%inclusion2 decks3 decks
44%synergy
Farseek
67%inclusion2 decks3 decks
42%synergy
Sea Gate Restoration
67%inclusion2 decks3 decks
61%synergy
Finale of Devastation
67%inclusion2 decks3 decks
55%synergy
Triumph of the Hordes
33%inclusion1 decks3 decks
30%synergy
Turntimber Symbiosis
33%inclusion1 decks3 decks
31%synergy
Rampant Growth
33%inclusion1 decks3 decks
-7%synergy
Spitting Image
33%inclusion1 decks3 decks
31%synergy
Overwhelming Stampede
33%inclusion1 decks3 decks
21%synergy
Rite of Replication
33%inclusion1 decks3 decks
26%synergy
Replication Technique
33%inclusion1 decks3 decks
30%synergy
Mirage Mockery
33%inclusion1 decks3 decks
33%synergy
Quasiduplicate
33%inclusion1 decks3 decks
31%synergy
Tempt with Reflections
33%inclusion1 decks3 decks
33%synergy
Rishkar's Expertise
33%inclusion1 decks3 decks
25%synergy
Repudiate // Replicate
33%inclusion1 decks3 decks
31%synergy
Explore
33%inclusion1 decks3 decks
13%synergy
Utility Artifacts
Helm of the Host
100%inclusion3 decks3 decks
95%synergy
Eldrazi Monument
67%inclusion2 decks3 decks
66%synergy
Lightning Greaves
67%inclusion2 decks3 decks
45%synergy
Mirror Box
33%inclusion1 decks3 decks
30%synergy
The Great Henge
33%inclusion1 decks3 decks
24%synergy
Enchantments
Tribute to the World Tree
100%inclusion3 decks3 decks
94%synergy
Parallel Lives
100%inclusion3 decks3 decks
94%synergy
Kindred Discovery
67%inclusion2 decks3 decks
57%synergy
Doubling Season
67%inclusion2 decks3 decks
57%synergy
Elemental Bond
67%inclusion2 decks3 decks
61%synergy
Defense of the Heart
67%inclusion2 decks3 decks
64%synergy
Moonlit Meditation
50%inclusion1 decks2 decks
49%synergy
Burgeoning
33%inclusion1 decks3 decks
26%synergy
Sylvan Library
33%inclusion1 decks3 decks
24%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
City of Death
33%inclusion1 decks3 decks
32%synergy
Imprisoned in the Moon
33%inclusion1 decks3 decks
29%synergy
Extravagant Replication
33%inclusion1 decks3 decks
31%synergy
Song of the Dryads
33%inclusion1 decks3 decks
32%synergy
Mystic Remora
33%inclusion1 decks3 decks
18%synergy
Primal Vigor
33%inclusion1 decks3 decks
30%synergy
Paradox Haze
33%inclusion1 decks3 decks
33%synergy
Growing Rites of Itlimoc
33%inclusion1 decks3 decks
27%synergy
Battles
Invasion of Ikoria
33%inclusion1 decks3 decks
29%synergy
Planeswalkers
Oko, Thief of Crowns
100%inclusion3 decks3 decks
93%synergy
Garruk Wildspeaker
33%inclusion1 decks3 decks
33%synergy
Utility Lands
Otawara, Soaring City
67%inclusion2 decks3 decks
48%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
Three Tree City
33%inclusion1 decks3 decks
28%synergy
Wasteland
33%inclusion1 decks3 decks
32%synergy
Urza's Saga
33%inclusion1 decks3 decks
28%synergy
Command Beacon
33%inclusion1 decks3 decks
29%synergy
Nykthos, Shrine to Nyx
33%inclusion1 decks3 decks
31%synergy
Strip Mine
33%inclusion1 decks3 decks
30%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
Simic Signet
67%inclusion2 decks3 decks
35%synergy
Talisman of Curiosity
67%inclusion2 decks3 decks
45%synergy
Patchwork Banner
33%inclusion1 decks3 decks
30%synergy
Machine God's Effigy
33%inclusion1 decks3 decks
32%synergy
Decanter of Endless Water
33%inclusion1 decks3 decks
28%synergy
Lands
Yavimaya Coast
100%inclusion3 decks3 decks
48%synergy
Tropical Island
100%inclusion3 decks3 decks
86%synergy
Dreamroot Cascade
100%inclusion3 decks3 decks
58%synergy
Command Tower
100%inclusion3 decks3 decks
15%synergy
Misty Rainforest
100%inclusion3 decks3 decks
69%synergy
Breeding Pool
100%inclusion3 decks3 decks
54%synergy
Island
100%inclusion3 decks3 decks
5%synergy
Forest
100%inclusion3 decks3 decks
5%synergy
Rejuvenating Springs
100%inclusion3 decks3 decks
56%synergy
Hinterland Harbor
100%inclusion3 decks3 decks
41%synergy
Barkchannel Pathway
67%inclusion2 decks3 decks
46%synergy
Simic Growth Chamber
67%inclusion2 decks3 decks
18%synergy
Sea Gate Restoration
67%inclusion2 decks3 decks
61%synergy
Waterlogged Grove
67%inclusion2 decks3 decks
46%synergy
Willowrush Verge
67%inclusion2 decks3 decks
50%synergy
Hedge Maze
67%inclusion2 decks3 decks
47%synergy
Scalding Tarn
67%inclusion2 decks3 decks
57%synergy
Turntimber Symbiosis
33%inclusion1 decks3 decks
31%synergy
Botanical Sanctum
33%inclusion1 decks3 decks
21%synergy
Mana Confluence
33%inclusion1 decks3 decks
28%synergy
Flooded Grove
33%inclusion1 decks3 decks
-7%synergy
Flooded Strand
33%inclusion1 decks3 decks
22%synergy
Prismatic Vista
33%inclusion1 decks3 decks
26%synergy
Fabled Passage
33%inclusion1 decks3 decks
19%synergy
Windswept Heath
33%inclusion1 decks3 decks
23%synergy
Vineglimmer Snarl
33%inclusion1 decks3 decks
-5%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
Evolving Wilds
33%inclusion1 decks3 decks
8%synergy
Path of Ancestry
33%inclusion1 decks3 decks
16%synergy
Glasspool Mimic
33%inclusion1 decks3 decks
29%synergy
Polluted Delta
33%inclusion1 decks3 decks
23%synergy
City of Brass
33%inclusion1 decks3 decks
27%synergy
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