Koma, Cosmos Serpent (Commander) - Stax

Alternate Names:

The Monstrous SerpentThe Monstrous Serpent

Koma, Cosmos Serpent
Rank #298
26decks
As CommanderAs CardAverage DeckDecks
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Budget
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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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Winter Orb
62%inclusion16 decks26 decks
61%synergy
Adrix and Nev, Twincasters
69%inclusion18 decks26 decks
61%synergy
Mana Drain
73%inclusion19 decks26 decks
57%synergy
Static Orb
54%inclusion14 decks26 decks
54%synergy
Junk Winder
58%inclusion15 decks26 decks
51%synergy
Parallel Lives
50%inclusion13 decks26 decks
44%synergy
Whelming Wave
54%inclusion14 decks26 decks
43%synergy
Sakashima of a Thousand Faces
46%inclusion12 decks26 decks
41%synergy
Tribute to the World Tree
46%inclusion12 decks26 decks
40%synergy
Sakashima the Impostor
42%inclusion11 decks26 decks
40%synergy
Top Cards
Cultivate
77%inclusion20 decks26 decks
30%synergy
Counterspell
73%inclusion19 decks26 decks
23%synergy
Beast Within
65%inclusion17 decks26 decks
15%synergy
Nature's Lore
65%inclusion17 decks26 decks
35%synergy
Birds of Paradise
65%inclusion17 decks26 decks
38%synergy
Kodama's Reach
62%inclusion16 decks26 decks
25%synergy
Three Visits
62%inclusion16 decks26 decks
38%synergy
Rampant Growth
62%inclusion16 decks26 decks
21%synergy
Farseek
58%inclusion15 decks26 decks
33%synergy
An Offer You Can't Refuse
54%inclusion14 decks26 decks
31%synergy
Game Changers
Cyclonic Rift
69%inclusion18 decks26 decks
43%synergy
Fierce Guardianship
58%inclusion15 decks26 decks
40%synergy
Rhystic Study
54%inclusion14 decks26 decks
32%synergy
Seedborn Muse
42%inclusion11 decks26 decks
27%synergy
Force of Will
38%inclusion10 decks26 decks
28%synergy
Mystical Tutor
38%inclusion10 decks26 decks
29%synergy
Ancient Tomb
35%inclusion9 decks26 decks
25%synergy
The One Ring
35%inclusion9 decks26 decks
27%synergy
Mana Vault
35%inclusion9 decks26 decks
28%synergy
Consecrated Sphinx
31%inclusion8 decks26 decks
22%synergy
Creatures
Koma, World-Eater
50%inclusion10 decks20 decks
37%synergy
Aesi, Tyrant of Gyre Strait
46%inclusion12 decks26 decks
29%synergy
Spark Double
46%inclusion12 decks26 decks
37%synergy
Elvish Mystic
35%inclusion9 decks26 decks
11%synergy
Serpent of Yawning Depths
35%inclusion9 decks26 decks
28%synergy
Spawning Kraken
35%inclusion9 decks26 decks
27%synergy
Garruk's Packleader
31%inclusion8 decks26 decks
28%synergy
Eternal Witness
31%inclusion8 decks26 decks
10%synergy
Llanowar Elves
31%inclusion8 decks26 decks
3%synergy
Arixmethes, Slumbering Isle
31%inclusion8 decks26 decks
17%synergy
Hullbreaker Horror
31%inclusion8 decks26 decks
13%synergy
Fyndhorn Elves
31%inclusion8 decks26 decks
15%synergy
Delighted Halfling
31%inclusion8 decks26 decks
19%synergy
Craterhoof Behemoth
27%inclusion7 decks26 decks
17%synergy
Vorinclex, Voice of Hunger
27%inclusion7 decks26 decks
24%synergy
Enduring Vitality
24%inclusion5 decks21 decks
16%synergy
Tishana's Tidebinder
23%inclusion6 decks26 decks
17%synergy
Murkfiend Liege
23%inclusion6 decks26 decks
8%synergy
Tireless Provisioner
23%inclusion6 decks26 decks
8%synergy
Sakura-Tribe Elder
23%inclusion6 decks26 decks
4%synergy
Octomancer
23%inclusion5 decks22 decks
18%synergy
Peregrine Drake
19%inclusion5 decks26 decks
15%synergy
Collector Ouphe
19%inclusion5 decks26 decks
18%synergy
Saryth, the Viper's Fang
19%inclusion5 decks26 decks
18%synergy
Lotus Cobra
19%inclusion5 decks26 decks
5%synergy
Kinnan, Bonder Prodigy
19%inclusion5 decks26 decks
16%synergy
Ohran Frostfang
19%inclusion5 decks26 decks
16%synergy
Troyan, Gutsy Explorer
15%inclusion4 decks26 decks
12%synergy
Azusa, Lost but Seeking
15%inclusion4 decks26 decks
1%synergy
Slinn Voda, the Rising Deep
15%inclusion4 decks26 decks
9%synergy
Archetype of Imagination
15%inclusion4 decks26 decks
11%synergy
Glasspool Mimic
15%inclusion4 decks26 decks
11%synergy
Deadeye Navigator
15%inclusion4 decks26 decks
12%synergy
Jin-Gitaxias, Progress Tyrant
15%inclusion4 decks26 decks
13%synergy
Tatyova, Benthic Druid
15%inclusion4 decks26 decks
-16%synergy
Summon: Leviathan
15%inclusion2 decks13 decks
8%synergy
Loot, Exuberant Explorer
15%inclusion3 decks20 decks
7%synergy
Harbinger of the Seas
14%inclusion3 decks22 decks
10%synergy
Jaheira, Friend of the Forest
12%inclusion3 decks26 decks
8%synergy
Kiora's Follower
12%inclusion3 decks26 decks
-3%synergy
Teferi, Mage of Zhalfir
12%inclusion3 decks26 decks
11%synergy
Roaming Throne
12%inclusion3 decks26 decks
3%synergy
Arbor Elf
12%inclusion3 decks26 decks
5%synergy
Walking Ballista
12%inclusion3 decks26 decks
8%synergy
Coiling Oracle
12%inclusion3 decks26 decks
-2%synergy
Esix, Fractal Bloom
12%inclusion3 decks26 decks
8%synergy
Sylvan Safekeeper
12%inclusion3 decks26 decks
8%synergy
Tribute Mage
12%inclusion3 decks26 decks
10%synergy
Nezahal, Primal Tide
12%inclusion3 decks26 decks
1%synergy
Guardian Augmenter
12%inclusion3 decks26 decks
10%synergy
Instants
Heroic Intervention
50%inclusion13 decks26 decks
20%synergy
Swan Song
46%inclusion12 decks26 decks
27%synergy
Pongify
38%inclusion10 decks26 decks
14%synergy
Growth Spiral
38%inclusion10 decks26 decks
-6%synergy
Negate
35%inclusion9 decks26 decks
9%synergy
Second Harvest
31%inclusion8 decks26 decks
24%synergy
Arcane Denial
31%inclusion8 decks26 decks
8%synergy
Worldly Tutor
31%inclusion8 decks26 decks
15%synergy
Double Major
31%inclusion8 decks26 decks
22%synergy
Pact of Negation
31%inclusion8 decks26 decks
23%synergy
Force of Negation
27%inclusion7 decks26 decks
18%synergy
Rapid Hybridization
19%inclusion5 decks26 decks
-7%synergy
Mental Misstep
19%inclusion5 decks26 decks
14%synergy
Return of the Wildspeaker
19%inclusion5 decks26 decks
9%synergy
Krosan Grip
19%inclusion5 decks26 decks
11%synergy
Chord of Calling
19%inclusion5 decks26 decks
11%synergy
Nature's Claim
19%inclusion5 decks26 decks
9%synergy
Reality Shift
19%inclusion5 decks26 decks
5%synergy
Noxious Revival
19%inclusion5 decks26 decks
13%synergy
Sink into Stupor
18%inclusion4 decks22 decks
7%synergy
Crop Rotation
15%inclusion4 decks26 decks
2%synergy
Tyvar's Stand
15%inclusion4 decks26 decks
13%synergy
Tamiyo's Safekeeping
15%inclusion4 decks26 decks
10%synergy
Archdruid's Charm
13%inclusion3 decks24 decks
6%synergy
Muddle the Mixture
12%inclusion3 decks26 decks
7%synergy
Whir of Invention
12%inclusion3 decks26 decks
9%synergy
Brainstorm
12%inclusion3 decks26 decks
-3%synergy
Force of Vigor
12%inclusion3 decks26 decks
7%synergy
Dispel
12%inclusion3 decks26 decks
7%synergy
Entish Restoration
12%inclusion3 decks26 decks
2%synergy
Flusterstorm
12%inclusion3 decks26 decks
5%synergy
Snap
12%inclusion3 decks26 decks
7%synergy
Simic Charm
12%inclusion3 decks26 decks
4%synergy
Consult the Star Charts
10%inclusion1 decks10 decks
8%synergy
Strix Serenade
9.1%inclusion2 decks22 decks
5%synergy
Planar Genesis
9.1%inclusion2 decks22 decks
-2%synergy
Mizzium Skin
7.7%inclusion2 decks26 decks
7%synergy
Frantic Search
7.7%inclusion2 decks26 decks
2%synergy
Snakeskin Veil
7.7%inclusion2 decks26 decks
2%synergy
Fog
7.7%inclusion2 decks26 decks
4%synergy
Mindbreak Trap
7.7%inclusion2 decks26 decks
3%synergy
Mystic Reflection
7.7%inclusion2 decks26 decks
5%synergy
Daze
7.7%inclusion2 decks26 decks
7%synergy
Harrow
7.7%inclusion2 decks26 decks
-4%synergy
Return to Nature
7.7%inclusion2 decks26 decks
2%synergy
Resculpt
7.7%inclusion2 decks26 decks
2%synergy
Stifle
7.7%inclusion2 decks26 decks
7%synergy
Misdirection
7.7%inclusion2 decks26 decks
6%synergy
Voidslime
7.7%inclusion2 decks26 decks
3%synergy
Constant Mists
7.7%inclusion2 decks26 decks
6%synergy
Sorceries
Skyshroud Claim
38%inclusion10 decks26 decks
29%synergy
Irenicus's Vile Duplication
35%inclusion9 decks26 decks
28%synergy
Fabricate
23%inclusion6 decks26 decks
16%synergy
Green Sun's Zenith
19%inclusion5 decks26 decks
10%synergy
Quantum Misalignment
19%inclusion5 decks26 decks
16%synergy
Personal Tutor
19%inclusion5 decks26 decks
18%synergy
Explosive Vegetation
19%inclusion5 decks26 decks
14%synergy
Explore
19%inclusion5 decks26 decks
-1%synergy
Last March of the Ents
15%inclusion4 decks26 decks
12%synergy
Curse of the Swine
15%inclusion4 decks26 decks
4%synergy
Finale of Devastation
15%inclusion4 decks26 decks
4%synergy
Rishkar's Expertise
15%inclusion4 decks26 decks
7%synergy
Genesis Wave
15%inclusion4 decks26 decks
11%synergy
Tempt with Discovery
12%inclusion3 decks26 decks
7%synergy
Quasiduplicate
12%inclusion3 decks26 decks
9%synergy
Natural Order
12%inclusion3 decks26 decks
10%synergy
Expropriate
12%inclusion3 decks26 decks
10%synergy
Regrowth
12%inclusion3 decks26 decks
8%synergy
Solve the Equation
12%inclusion3 decks26 decks
9%synergy
Rite of Replication
12%inclusion3 decks26 decks
4%synergy
Doppelgang
8.3%inclusion2 decks24 decks
2%synergy
Windfall
7.7%inclusion2 decks26 decks
4%synergy
Eldritch Evolution
7.7%inclusion2 decks26 decks
4%synergy
Tooth and Nail
7.7%inclusion2 decks26 decks
6%synergy
Triumph of the Hordes
7.7%inclusion2 decks26 decks
5%synergy
Harmonize
7.7%inclusion2 decks26 decks
2%synergy
Broken Bond
7.7%inclusion2 decks26 decks
3%synergy
Search for Tomorrow
7.7%inclusion2 decks26 decks
3%synergy
Distant Melody
7.7%inclusion2 decks26 decks
4%synergy
Temporal Trespass
7.7%inclusion2 decks26 decks
7%synergy
Bala Ged Recovery
7.7%inclusion2 decks26 decks
-2%synergy
Migration Path
7.7%inclusion2 decks26 decks
4%synergy
Open the Way
7.7%inclusion2 decks26 decks
5%synergy
Overwhelming Stampede
7.7%inclusion2 decks26 decks
-5%synergy
Sylvan Scrying
7.7%inclusion2 decks26 decks
2%synergy
Sea Gate Restoration
7.7%inclusion2 decks26 decks
2%synergy
Drawn from Dreams
7.7%inclusion2 decks26 decks
8%synergy
Nature's Rhythm
6.3%inclusion1 decks16 decks
0%synergy
Utility Artifacts
Swiftfoot Boots
38%inclusion10 decks26 decks
13%synergy
Winter Moon
27%inclusion6 decks22 decks
27%synergy
Lightning Greaves
23%inclusion6 decks26 decks
1%synergy
Mirror Box
19%inclusion5 decks26 decks
16%synergy
Torpor Orb
19%inclusion5 decks26 decks
19%synergy
Isochron Scepter
19%inclusion5 decks26 decks
17%synergy
Helm of the Host
19%inclusion5 decks26 decks
14%synergy
Skullclamp
12%inclusion3 decks26 decks
10%synergy
Grafdigger's Cage
12%inclusion3 decks26 decks
11%synergy
Sapphire Medallion
12%inclusion3 decks26 decks
8%synergy
Emerald Medallion
12%inclusion3 decks26 decks
9%synergy
Vexing Bauble
9.1%inclusion2 decks22 decks
9%synergy
Moonsilver Key
7.7%inclusion2 decks26 decks
4%synergy
Coat of Arms
7.7%inclusion2 decks26 decks
6%synergy
Trinisphere
7.7%inclusion2 decks26 decks
7%synergy
Monster Manual
7.7%inclusion2 decks26 decks
6%synergy
The Great Henge
7.7%inclusion2 decks26 decks
-1%synergy
Phyrexian Altar
7.7%inclusion2 decks26 decks
7%synergy
Whispersilk Cloak
7.7%inclusion2 decks26 decks
5%synergy
Combine Chrysalis
7.7%inclusion2 decks26 decks
3%synergy
Tangle Wire
7.7%inclusion2 decks26 decks
8%synergy
Staff of Domination
7.7%inclusion2 decks26 decks
6%synergy
Smokestack
7.7%inclusion2 decks26 decks
8%synergy
Banner of Kinship
5.0%inclusion1 decks20 decks
3%synergy
Enchantments
Doubling Season
42%inclusion11 decks26 decks
33%synergy
Elemental Bond
42%inclusion11 decks26 decks
37%synergy
Mystic Remora
35%inclusion9 decks26 decks
19%synergy
Sylvan Library
27%inclusion7 decks26 decks
18%synergy
Stasis
23%inclusion6 decks26 decks
23%synergy
Moonlit Meditation
20%inclusion2 decks10 decks
19%synergy
Impostor Syndrome
20%inclusion1 decks5 decks
18%synergy
Opposition
19%inclusion5 decks26 decks
19%synergy
Defense of the Heart
19%inclusion5 decks26 decks
17%synergy
Utopia Sprawl
15%inclusion4 decks26 decks
9%synergy
Cryptolith Rite
15%inclusion4 decks26 decks
12%synergy
Back to Basics
15%inclusion4 decks26 decks
15%synergy
Exploration
15%inclusion4 decks26 decks
2%synergy
Wild Growth
15%inclusion4 decks26 decks
7%synergy
Kenrith's Transformation
15%inclusion4 decks26 decks
11%synergy
Arcane Laboratory
15%inclusion4 decks26 decks
15%synergy
Verity Circle
15%inclusion4 decks26 decks
15%synergy
Carpet of Flowers
12%inclusion3 decks26 decks
9%synergy
Frozen Aether
12%inclusion3 decks26 decks
11%synergy
Pattern of Rebirth
12%inclusion3 decks26 decks
11%synergy
Unnatural Growth
12%inclusion3 decks26 decks
8%synergy
Song of the Dryads
12%inclusion3 decks26 decks
10%synergy
Burgeoning
12%inclusion3 decks26 decks
4%synergy
Death's Presence
12%inclusion3 decks26 decks
11%synergy
Kindred Discovery
7.7%inclusion2 decks26 decks
-2%synergy
Garruk's Uprising
7.7%inclusion2 decks26 decks
-9%synergy
Dissipation Field
7.7%inclusion2 decks26 decks
7%synergy
Steely Resolve
7.7%inclusion2 decks26 decks
7%synergy
Mana Reflection
7.7%inclusion2 decks26 decks
3%synergy
Primal Vigor
7.7%inclusion2 decks26 decks
5%synergy
Rising Waters
7.7%inclusion2 decks26 decks
8%synergy
Prismatic Omen
7.7%inclusion2 decks26 decks
8%synergy
Propaganda
7.7%inclusion2 decks26 decks
1%synergy
Growing Rites of Itlimoc
7.7%inclusion2 decks26 decks
2%synergy
Confounding Conundrum
7.7%inclusion2 decks26 decks
8%synergy
Battles
Invasion of Segovia
7.7%inclusion2 decks26 decks
7%synergy
Planeswalkers
Oko, Thief of Crowns
31%inclusion8 decks26 decks
24%synergy
Narset, Parter of Veils
23%inclusion6 decks26 decks
22%synergy
Tezzeret the Seeker
12%inclusion3 decks26 decks
7%synergy
Utility Lands
Reliquary Tower
54%inclusion14 decks26 decks
4%synergy
Boseiju, Who Endures
46%inclusion12 decks26 decks
24%synergy
Otawara, Soaring City
31%inclusion8 decks26 decks
12%synergy
Evendo, Waking Haven
30%inclusion3 decks10 decks
25%synergy
Command Beacon
27%inclusion7 decks26 decks
23%synergy
Alchemist's Refuge
19%inclusion5 decks26 decks
2%synergy
Urza's Saga
19%inclusion5 decks26 decks
14%synergy
Gaea's Cradle
19%inclusion5 decks26 decks
12%synergy
Yavimaya, Cradle of Growth
19%inclusion5 decks26 decks
-3%synergy
Temple of the False God
19%inclusion5 decks26 decks
4%synergy
Mystic Sanctuary
15%inclusion4 decks26 decks
3%synergy
Three Tree City
14%inclusion3 decks22 decks
9%synergy
Mistrise Village
13%inclusion2 decks16 decks
2%synergy
Coral Atoll
12%inclusion3 decks26 decks
9%synergy
Mosswort Bridge
12%inclusion3 decks26 decks
-6%synergy
Jungle Basin
12%inclusion3 decks26 decks
9%synergy
Castle Garenbrig
12%inclusion3 decks26 decks
7%synergy
Minamo, School at Water's Edge
7.7%inclusion2 decks26 decks
1%synergy
Crystal Vein
7.7%inclusion2 decks26 decks
7%synergy
Emergence Zone
7.7%inclusion2 decks26 decks
4%synergy
Castle Vantress
7.7%inclusion2 decks26 decks
1%synergy
Strip Mine
7.7%inclusion2 decks26 decks
5%synergy
Blinkmoth Well
7.7%inclusion2 decks26 decks
8%synergy
Rogue's Passage
7.7%inclusion2 decks26 decks
-14%synergy
Mana Artifacts
Sol Ring
96%inclusion25 decks26 decks
16%synergy
Arcane Signet
77%inclusion20 decks26 decks
14%synergy
Talisman of Curiosity
46%inclusion12 decks26 decks
25%synergy
Thought Vessel
42%inclusion11 decks26 decks
22%synergy
Lotus Petal
23%inclusion6 decks26 decks
16%synergy
Simic Signet
15%inclusion4 decks26 decks
-17%synergy
Jeweled Lotus
12%inclusion3 decks26 decks
9%synergy
Mana Crypt
12%inclusion3 decks26 decks
8%synergy
Basalt Monolith
12%inclusion3 decks26 decks
5%synergy
Mox Opal
12%inclusion3 decks26 decks
7%synergy
Chrome Mox
12%inclusion3 decks26 decks
5%synergy
Lands
Island
85%inclusion22 decks26 decks
-11%synergy
Forest
85%inclusion22 decks26 decks
-11%synergy
Command Tower
81%inclusion21 decks26 decks
-5%synergy
Breeding Pool
65%inclusion17 decks26 decks
20%synergy
Rejuvenating Springs
65%inclusion17 decks26 decks
22%synergy
Misty Rainforest
54%inclusion14 decks26 decks
23%synergy
Yavimaya Coast
54%inclusion14 decks26 decks
1%synergy
Dreamroot Cascade
54%inclusion14 decks26 decks
12%synergy
Hinterland Harbor
50%inclusion13 decks26 decks
-9%synergy
Simic Growth Chamber
35%inclusion9 decks26 decks
-14%synergy
Prismatic Vista
31%inclusion8 decks26 decks
23%synergy
Windswept Heath
27%inclusion7 decks26 decks
17%synergy
Tropical Island
27%inclusion7 decks26 decks
13%synergy
Hedge Maze
25%inclusion6 decks24 decks
5%synergy
Fabled Passage
23%inclusion6 decks26 decks
9%synergy
Flooded Grove
23%inclusion6 decks26 decks
-18%synergy
Vineglimmer Snarl
19%inclusion5 decks26 decks
-19%synergy
Barkchannel Pathway
19%inclusion5 decks26 decks
-1%synergy
Verdant Catacombs
19%inclusion5 decks26 decks
10%synergy
Waterlogged Grove
19%inclusion5 decks26 decks
-1%synergy
Sink into Stupor
18%inclusion4 decks22 decks
7%synergy
Myriad Landscape
15%inclusion4 decks26 decks
-7%synergy
Snow-Covered Island
15%inclusion4 decks26 decks
9%synergy
Snow-Covered Forest
15%inclusion4 decks26 decks
9%synergy
Wooded Foothills
15%inclusion4 decks26 decks
6%synergy
Glasspool Mimic
15%inclusion4 decks26 decks
11%synergy
Polluted Delta
15%inclusion4 decks26 decks
5%synergy
Flooded Strand
15%inclusion4 decks26 decks
4%synergy
Botanical Sanctum
15%inclusion4 decks26 decks
3%synergy
Willowrush Verge
15%inclusion3 decks20 decks
-1%synergy
Reflecting Pool
12%inclusion3 decks26 decks
8%synergy
Gemstone Caverns
12%inclusion3 decks26 decks
6%synergy
Scalding Tarn
12%inclusion3 decks26 decks
2%synergy
Talon Gates of Madara
9.1%inclusion2 decks22 decks
1%synergy
Exotic Orchard
7.7%inclusion2 decks26 decks
-16%synergy
Temple of Mystery
7.7%inclusion2 decks26 decks
-31%synergy
Rimewood Falls
7.7%inclusion2 decks26 decks
-2%synergy
Evolving Wilds
7.7%inclusion2 decks26 decks
-17%synergy
Bala Ged Recovery
7.7%inclusion2 decks26 decks
-2%synergy
Sea Gate Restoration
7.7%inclusion2 decks26 decks
2%synergy
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