Koma, Cosmos Serpent (Commander) - Budget Upgraded Control

Alternate Names:

The Monstrous SerpentThe Monstrous Serpent

Koma, Cosmos Serpent
Rank #307
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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The Unagi of Kyoshi Island
100%inclusion1 decks1 decks
95%synergy
Game Changers
Seedborn Muse
100%inclusion2 decks2 decks
84%synergy
Creatures
Elvish Mystic
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76%synergy
Arbor Elf
100%inclusion2 decks2 decks
94%synergy
Junk Winder
100%inclusion2 decks2 decks
93%synergy
Llanowar Elves
100%inclusion2 decks2 decks
72%synergy
Arixmethes, Slumbering Isle
100%inclusion2 decks2 decks
87%synergy
Sakura-Tribe Elder
100%inclusion2 decks2 decks
81%synergy
Summon: Leviathan
100%inclusion1 decks1 decks
93%synergy
Tatyova, Benthic Druid
50%inclusion1 decks2 decks
19%synergy
Adrix and Nev, Twincasters
50%inclusion1 decks2 decks
42%synergy
Garruk's Packleader
50%inclusion1 decks2 decks
48%synergy
Mystic Snake
50%inclusion1 decks2 decks
47%synergy
Kaseto, Orochi Archmage
50%inclusion1 decks2 decks
49%synergy
Koma, World-Eater
50%inclusion1 decks2 decks
37%synergy
Eternal Witness
50%inclusion1 decks2 decks
29%synergy
Tender Wildguide
50%inclusion1 decks2 decks
49%synergy
Scourge of Fleets
50%inclusion1 decks2 decks
42%synergy
Nadir Kraken
50%inclusion1 decks2 decks
46%synergy
Skyserpent Seeker
50%inclusion1 decks2 decks
47%synergy
Murkfiend Liege
50%inclusion1 decks2 decks
36%synergy
Chasm Skulker
50%inclusion1 decks2 decks
44%synergy
Coiling Oracle
50%inclusion1 decks2 decks
37%synergy
Slinn Voda, the Rising Deep
50%inclusion1 decks2 decks
44%synergy
Spark Double
50%inclusion1 decks2 decks
40%synergy
Spore Frog
50%inclusion1 decks2 decks
45%synergy
Spiketail Drakeling
50%inclusion1 decks2 decks
50%synergy
Rampaging Aetherhood
50%inclusion1 decks2 decks
50%synergy
Scute Swarm
50%inclusion1 decks2 decks
29%synergy
Master Biomancer
50%inclusion1 decks2 decks
44%synergy
Ohran Frostfang
50%inclusion1 decks2 decks
46%synergy
Trygon Predator
50%inclusion1 decks2 decks
44%synergy
Serpent of Yawning Depths
50%inclusion1 decks2 decks
44%synergy
Reef Worm
50%inclusion1 decks2 decks
46%synergy
Loot, Exuberant Explorer
50%inclusion1 decks2 decks
43%synergy
Nightshade Dryad
50%inclusion1 decks2 decks
49%synergy
Instants
Growth Spiral
100%inclusion2 decks2 decks
55%synergy
Arcane Denial
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77%synergy
Counterspell
100%inclusion2 decks2 decks
50%synergy
Hide on the Ceiling
100%inclusion1 decks1 decks
99%synergy
Terrific Team-Up
100%inclusion1 decks1 decks
100%synergy
Rapid Hybridization
50%inclusion1 decks2 decks
24%synergy
Eureka Moment
50%inclusion1 decks2 decks
39%synergy
Frantic Search
50%inclusion1 decks2 decks
44%synergy
Defend the Hearth
50%inclusion1 decks2 decks
50%synergy
Snakeskin Veil
50%inclusion1 decks2 decks
44%synergy
An Offer You Can't Refuse
50%inclusion1 decks2 decks
26%synergy
Fog
50%inclusion1 decks2 decks
47%synergy
Return of the Wildspeaker
50%inclusion1 decks2 decks
40%synergy
Syncopate
50%inclusion1 decks2 decks
50%synergy
Negate
50%inclusion1 decks2 decks
24%synergy
Brainstorm
50%inclusion1 decks2 decks
36%synergy
Familiar's Ruse
50%inclusion1 decks2 decks
50%synergy
Respite
50%inclusion1 decks2 decks
50%synergy
Commencement of Festivities
50%inclusion1 decks2 decks
50%synergy
Roiling Regrowth
50%inclusion1 decks2 decks
46%synergy
Nature's Claim
50%inclusion1 decks2 decks
40%synergy
Harrow
50%inclusion1 decks2 decks
38%synergy
Reality Shift
50%inclusion1 decks2 decks
35%synergy
Beast Within
50%inclusion1 decks2 decks
0%synergy
Slip Out the Back
50%inclusion1 decks2 decks
46%synergy
Blessed Respite
50%inclusion1 decks2 decks
49%synergy
Spell Rupture
50%inclusion1 decks2 decks
50%synergy
Clinging Mists
50%inclusion1 decks2 decks
50%synergy
Joint Exploration
50%inclusion1 decks2 decks
44%synergy
Wash Away
50%inclusion1 decks2 decks
48%synergy
Pause for Reflection
50%inclusion1 decks2 decks
50%synergy
Planar Genesis
50%inclusion1 decks2 decks
39%synergy
Moment's Peace
50%inclusion1 decks2 decks
49%synergy
Tamiyo's Safekeeping
50%inclusion1 decks2 decks
44%synergy
Collective Resistance
50%inclusion1 decks2 decks
46%synergy
Mana Leak
50%inclusion1 decks2 decks
48%synergy
Simic Charm
50%inclusion1 decks2 decks
42%synergy
Terrifying Presence
50%inclusion1 decks2 decks
50%synergy
Root Snare
50%inclusion1 decks2 decks
50%synergy
Lull
50%inclusion1 decks2 decks
50%synergy
March of Swirling Mist
50%inclusion1 decks2 decks
46%synergy
Winds of Qal Sisma
50%inclusion1 decks2 decks
50%synergy
Haze of Pollen
50%inclusion1 decks2 decks
50%synergy
Sorceries
Rampant Growth
100%inclusion2 decks2 decks
59%synergy
Whelming Wave
100%inclusion2 decks2 decks
89%synergy
Kodama's Reach
50%inclusion1 decks2 decks
14%synergy
Three Visits
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27%synergy
Overrun
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48%synergy
Consuming Tide
50%inclusion1 decks2 decks
48%synergy
Circuitous Route
50%inclusion1 decks2 decks
48%synergy
Cultivate
50%inclusion1 decks2 decks
3%synergy
Explosive Vegetation
50%inclusion1 decks2 decks
44%synergy
Distant Melody
50%inclusion1 decks2 decks
47%synergy
Explore
50%inclusion1 decks2 decks
30%synergy
Spectral Deluge
50%inclusion1 decks2 decks
49%synergy
River's Rebuke
50%inclusion1 decks2 decks
47%synergy
Urban Evolution
50%inclusion1 decks2 decks
40%synergy
Migration Path
50%inclusion1 decks2 decks
47%synergy
Regrowth
50%inclusion1 decks2 decks
46%synergy
Nissa's Pilgrimage
50%inclusion1 decks2 decks
48%synergy
Utility Artifacts
Combine Chrysalis
50%inclusion1 decks2 decks
46%synergy
Enchantments
Elemental Bond
100%inclusion2 decks2 decks
94%synergy
Imprisoned in the Moon
50%inclusion1 decks2 decks
46%synergy
Evolutionary Leap
50%inclusion1 decks2 decks
50%synergy
Lignify
50%inclusion1 decks2 decks
48%synergy
Wilderness Reclamation
50%inclusion1 decks2 decks
41%synergy
Wild Growth
50%inclusion1 decks2 decks
41%synergy
Fresh Start
50%inclusion1 decks2 decks
50%synergy
Kenrith's Transformation
50%inclusion1 decks2 decks
46%synergy
Zendikar's Roil
50%inclusion1 decks2 decks
46%synergy
Propaganda
50%inclusion1 decks2 decks
43%synergy
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Sol Ring
100%inclusion2 decks2 decks
19%synergy
Ring of the Lucii
100%inclusion1 decks1 decks
100%synergy
Arcane Signet
50%inclusion1 decks2 decks
-13%synergy
Talisman of Curiosity
50%inclusion1 decks2 decks
28%synergy
Mind Stone
50%inclusion1 decks2 decks
46%synergy
Lands
Yavimaya Coast
100%inclusion2 decks2 decks
47%synergy
Temple of Mystery
100%inclusion2 decks2 decks
62%synergy
Island
100%inclusion2 decks2 decks
5%synergy
Forest
100%inclusion2 decks2 decks
5%synergy
Dreamroot Cascade
100%inclusion2 decks2 decks
58%synergy
Hinterland Harbor
100%inclusion2 decks2 decks
40%synergy
Command Tower
50%inclusion1 decks2 decks
-35%synergy
Vineglimmer Snarl
50%inclusion1 decks2 decks
12%synergy
Tangled Islet
50%inclusion1 decks2 decks
34%synergy
Overflowing Basin
50%inclusion1 decks2 decks
31%synergy
Path of Ancestry
50%inclusion1 decks2 decks
33%synergy
Flooded Grove
50%inclusion1 decks2 decks
9%synergy
Thornwood Falls
50%inclusion1 decks2 decks
32%synergy
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