Koma, Cosmos Serpent (Commander) - Optimized Ramp

Alternate Names:

The Monstrous SerpentThe Monstrous Serpent

Koma, Cosmos Serpent
Rank #299
29decks
As CommanderAs CardAverage DeckDecks
Bracket
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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
14%inclusion1 decks7 decks
9%synergy
High Synergy Cards
Elemental Bond
76%inclusion22 decks29 decks
70%synergy
Parallel Lives
72%inclusion21 decks29 decks
66%synergy
Spark Double
76%inclusion22 decks29 decks
66%synergy
Adrix and Nev, Twincasters
72%inclusion21 decks29 decks
64%synergy
Mana Drain
79%inclusion23 decks29 decks
64%synergy
Whelming Wave
72%inclusion21 decks29 decks
61%synergy
Sakashima of a Thousand Faces
66%inclusion19 decks29 decks
60%synergy
Serpent of Yawning Depths
66%inclusion19 decks29 decks
59%synergy
Koma, World-Eater
66%inclusion19 decks29 decks
52%synergy
Spawning Kraken
59%inclusion17 decks29 decks
51%synergy
Top Cards
Cultivate
86%inclusion25 decks29 decks
39%synergy
Counterspell
72%inclusion21 decks29 decks
22%synergy
Three Visits
69%inclusion20 decks29 decks
46%synergy
Kodama's Reach
66%inclusion19 decks29 decks
29%synergy
Heroic Intervention
66%inclusion19 decks29 decks
35%synergy
Nature's Lore
66%inclusion19 decks29 decks
35%synergy
Rampant Growth
66%inclusion19 decks29 decks
25%synergy
Mystic Remora
66%inclusion19 decks29 decks
50%synergy
Birds of Paradise
66%inclusion19 decks29 decks
38%synergy
Farseek
62%inclusion18 decks29 decks
37%synergy
Game Changers
Cyclonic Rift
86%inclusion25 decks29 decks
60%synergy
Rhystic Study
83%inclusion24 decks29 decks
61%synergy
Fierce Guardianship
69%inclusion20 decks29 decks
52%synergy
Worldly Tutor
52%inclusion15 decks29 decks
36%synergy
Consecrated Sphinx
48%inclusion14 decks29 decks
40%synergy
Mystical Tutor
45%inclusion13 decks29 decks
36%synergy
Seedborn Muse
41%inclusion12 decks29 decks
26%synergy
Ancient Tomb
38%inclusion11 decks29 decks
29%synergy
The One Ring
31%inclusion9 decks29 decks
23%synergy
Force of Will
31%inclusion9 decks29 decks
21%synergy
Creatures
Aesi, Tyrant of Gyre Strait
62%inclusion18 decks29 decks
45%synergy
Craterhoof Behemoth
52%inclusion15 decks29 decks
42%synergy
Sakashima the Impostor
52%inclusion15 decks29 decks
49%synergy
Junk Winder
45%inclusion13 decks29 decks
38%synergy
Llanowar Elves
41%inclusion12 decks29 decks
14%synergy
Sakura-Tribe Elder
38%inclusion11 decks29 decks
19%synergy
Eternal Witness
34%inclusion10 decks29 decks
13%synergy
Roaming Throne
34%inclusion10 decks29 decks
26%synergy
Fanatic of Rhonas
34%inclusion10 decks29 decks
29%synergy
Garruk's Packleader
31%inclusion9 decks29 decks
29%synergy
Ohran Frostfang
31%inclusion9 decks29 decks
27%synergy
Tatyova, Benthic Druid
28%inclusion8 decks29 decks
-4%synergy
Enduring Vitality
28%inclusion8 decks29 decks
20%synergy
Elvish Mystic
28%inclusion8 decks29 decks
4%synergy
Arixmethes, Slumbering Isle
28%inclusion8 decks29 decks
14%synergy
Toski, Bearer of Secrets
24%inclusion7 decks29 decks
21%synergy
Hullbreaker Horror
24%inclusion7 decks29 decks
6%synergy
Summon: Leviathan
24%inclusion5 decks21 decks
17%synergy
Azusa, Lost but Seeking
21%inclusion6 decks29 decks
7%synergy
Vorinclex, Voice of Hunger
21%inclusion6 decks29 decks
18%synergy
Fyndhorn Elves
21%inclusion6 decks29 decks
5%synergy
Uro, Titan of Nature's Wrath
21%inclusion6 decks29 decks
11%synergy
Selvala, Heart of the Wilds
17%inclusion5 decks29 decks
14%synergy
Coiling Oracle
17%inclusion5 decks29 decks
4%synergy
Nezahal, Primal Tide
17%inclusion5 decks29 decks
6%synergy
Enduring Curiosity
14%inclusion4 decks29 decks
11%synergy
Tireless Provisioner
14%inclusion4 decks29 decks
-1%synergy
Delighted Halfling
14%inclusion4 decks29 decks
2%synergy
Curiosity Crafter
10%inclusion3 decks29 decks
7%synergy
Octomancer
10%inclusion3 decks29 decks
6%synergy
Saryth, the Viper's Fang
10%inclusion3 decks29 decks
9%synergy
Hydroelectric Specimen
10%inclusion3 decks29 decks
4%synergy
Murkfiend Liege
10%inclusion3 decks29 decks
-4%synergy
Oracle of Mul Daya
10%inclusion3 decks29 decks
2%synergy
Slinn Voda, the Rising Deep
10%inclusion3 decks29 decks
4%synergy
Lotus Cobra
10%inclusion3 decks29 decks
-3%synergy
Faerie Mastermind
10%inclusion3 decks29 decks
6%synergy
Ledger Shredder
10%inclusion3 decks29 decks
9%synergy
Solemn Simulacrum
6.9%inclusion2 decks29 decks
0%synergy
Undercover Operative
6.9%inclusion2 decks29 decks
6%synergy
Evolution Witness
6.9%inclusion2 decks29 decks
3%synergy
Disciple of Freyalise
6.9%inclusion2 decks29 decks
2%synergy
Phyrexian Metamorph
6.9%inclusion2 decks29 decks
-2%synergy
Overlord of the Hauntwoods
6.9%inclusion2 decks29 decks
4%synergy
Avenger of Zendikar
6.9%inclusion2 decks29 decks
-11%synergy
Sphinx of the Second Sun
6.9%inclusion2 decks29 decks
6%synergy
Colossal Skyturtle
6.9%inclusion2 decks29 decks
1%synergy
Kinnan, Bonder Prodigy
6.9%inclusion2 decks29 decks
4%synergy
Esix, Fractal Bloom
6.9%inclusion2 decks29 decks
3%synergy
Scute Swarm
6.9%inclusion2 decks29 decks
-14%synergy
Instants
An Offer You Can't Refuse
59%inclusion17 decks29 decks
36%synergy
Beast Within
55%inclusion16 decks29 decks
5%synergy
Swan Song
55%inclusion16 decks29 decks
36%synergy
Pongify
41%inclusion12 decks29 decks
17%synergy
Negate
41%inclusion12 decks29 decks
15%synergy
Growth Spiral
38%inclusion11 decks29 decks
-7%synergy
Double Major
38%inclusion11 decks29 decks
29%synergy
Second Harvest
31%inclusion9 decks29 decks
25%synergy
Sink into Stupor
31%inclusion9 decks29 decks
20%synergy
Rapid Hybridization
28%inclusion8 decks29 decks
1%synergy
Force of Negation
28%inclusion8 decks29 decks
19%synergy
Strix Serenade
24%inclusion7 decks29 decks
20%synergy
Arcane Denial
24%inclusion7 decks29 decks
2%synergy
Crop Rotation
21%inclusion6 decks29 decks
7%synergy
Return of the Wildspeaker
21%inclusion6 decks29 decks
10%synergy
Archdruid's Charm
21%inclusion6 decks29 decks
14%synergy
Chord of Calling
21%inclusion6 decks29 decks
13%synergy
Planar Genesis
17%inclusion5 decks29 decks
6%synergy
Pact of Negation
17%inclusion5 decks29 decks
10%synergy
Stubborn Denial
14%inclusion4 decks29 decks
11%synergy
Mystic Reflection
14%inclusion4 decks29 decks
11%synergy
Nature's Claim
14%inclusion4 decks29 decks
4%synergy
Harrow
14%inclusion4 decks29 decks
2%synergy
Return to Nature
14%inclusion4 decks29 decks
8%synergy
Noxious Revival
14%inclusion4 decks29 decks
8%synergy
Tamiyo's Safekeeping
14%inclusion4 decks29 decks
8%synergy
Muddle the Mixture
10%inclusion3 decks29 decks
6%synergy
Disdainful Stroke
10%inclusion3 decks29 decks
9%synergy
Brainstorm
10%inclusion3 decks29 decks
-4%synergy
Krosan Grip
10%inclusion3 decks29 decks
2%synergy
Sublime Epiphany
10%inclusion3 decks29 decks
8%synergy
Reality Shift
10%inclusion3 decks29 decks
-4%synergy
Lazotep Plating
10%inclusion3 decks29 decks
10%synergy
Voidslime
10%inclusion3 decks29 decks
5%synergy
Eureka Moment
6.9%inclusion2 decks29 decks
-4%synergy
Mental Misstep
6.9%inclusion2 decks29 decks
1%synergy
Fog
6.9%inclusion2 decks29 decks
4%synergy
Legolas's Quick Reflexes
6.9%inclusion2 decks29 decks
4%synergy
Force of Vigor
6.9%inclusion2 decks29 decks
2%synergy
Defabricate
6.9%inclusion2 decks29 decks
6%synergy
Roiling Regrowth
6.9%inclusion2 decks29 decks
3%synergy
Cancel
6.9%inclusion2 decks29 decks
5%synergy
Resculpt
6.9%inclusion2 decks29 decks
1%synergy
Filter Out
6.9%inclusion2 decks29 decks
4%synergy
Saw It Coming
6.9%inclusion2 decks29 decks
5%synergy
Joint Exploration
6.9%inclusion2 decks29 decks
1%synergy
Arachnogenesis
6.9%inclusion2 decks29 decks
5%synergy
Collective Resistance
6.9%inclusion2 decks29 decks
3%synergy
Once Upon a Time
6.9%inclusion2 decks29 decks
7%synergy
Dramatic Reversal
6.9%inclusion2 decks29 decks
3%synergy
Sorceries
Skyshroud Claim
59%inclusion17 decks29 decks
50%synergy
Irenicus's Vile Duplication
48%inclusion14 decks29 decks
42%synergy
Finale of Devastation
34%inclusion10 decks29 decks
23%synergy
Quantum Misalignment
24%inclusion7 decks29 decks
21%synergy
Sea Gate Restoration
21%inclusion6 decks29 decks
15%synergy
Explosive Vegetation
21%inclusion6 decks29 decks
15%synergy
Migration Path
21%inclusion6 decks29 decks
17%synergy
Overwhelming Stampede
21%inclusion6 decks29 decks
8%synergy
Flare of Cultivation
17%inclusion5 decks29 decks
15%synergy
Bala Ged Recovery
17%inclusion5 decks29 decks
7%synergy
Into the North
14%inclusion4 decks29 decks
13%synergy
Search for Tomorrow
14%inclusion4 decks29 decks
9%synergy
Explore
14%inclusion4 decks29 decks
-7%synergy
Green Sun's Zenith
10%inclusion3 decks29 decks
2%synergy
Fabricate
10%inclusion3 decks29 decks
4%synergy
Curse of the Swine
10%inclusion3 decks29 decks
-1%synergy
Lórien Revealed
10%inclusion3 decks29 decks
7%synergy
Vastwood Surge
10%inclusion3 decks29 decks
9%synergy
Natural Order
10%inclusion3 decks29 decks
9%synergy
Rishkar's Expertise
10%inclusion3 decks29 decks
2%synergy
Open the Way
10%inclusion3 decks29 decks
8%synergy
Windfall
6.9%inclusion2 decks29 decks
3%synergy
Triumph of the Hordes
6.9%inclusion2 decks29 decks
4%synergy
Quasiduplicate
6.9%inclusion2 decks29 decks
4%synergy
Harmonize
6.9%inclusion2 decks29 decks
1%synergy
Personal Tutor
6.9%inclusion2 decks29 decks
6%synergy
Expropriate
6.9%inclusion2 decks29 decks
5%synergy
Distant Melody
6.9%inclusion2 decks29 decks
4%synergy
Doppelgang
6.9%inclusion2 decks29 decks
0%synergy
Ezuri's Predation
6.9%inclusion2 decks29 decks
-1%synergy
Harvest Season
6.9%inclusion2 decks29 decks
5%synergy
Utility Artifacts
Lightning Greaves
45%inclusion13 decks29 decks
23%synergy
Swiftfoot Boots
41%inclusion12 decks29 decks
16%synergy
Helm of the Host
38%inclusion11 decks29 decks
33%synergy
The Great Henge
21%inclusion6 decks29 decks
12%synergy
Mirror Box
17%inclusion5 decks29 decks
14%synergy
Combine Chrysalis
14%inclusion4 decks29 decks
9%synergy
Static Orb
10%inclusion3 decks29 decks
10%synergy
Winter Orb
10%inclusion3 decks29 decks
10%synergy
Skullclamp
10%inclusion3 decks29 decks
9%synergy
Eldrazi Monument
10%inclusion3 decks29 decks
10%synergy
Emerald Medallion
10%inclusion3 decks29 decks
7%synergy
Isochron Scepter
10%inclusion3 decks29 decks
8%synergy
Sapphire Medallion
10%inclusion3 decks29 decks
7%synergy
Coat of Arms
6.9%inclusion2 decks29 decks
6%synergy
Nevinyrral's Disk
6.9%inclusion2 decks29 decks
6%synergy
Idol of Oblivion
6.9%inclusion2 decks29 decks
3%synergy
Enchantments
Doubling Season
59%inclusion17 decks29 decks
49%synergy
Tribute to the World Tree
48%inclusion14 decks29 decks
42%synergy
Sylvan Library
34%inclusion10 decks29 decks
25%synergy
Exploration
24%inclusion7 decks29 decks
11%synergy
Kindred Discovery
17%inclusion5 decks29 decks
7%synergy
Opposition
17%inclusion5 decks29 decks
17%synergy
Defense of the Heart
17%inclusion5 decks29 decks
15%synergy
Beastmaster Ascension
14%inclusion4 decks29 decks
11%synergy
Wild Growth
14%inclusion4 decks29 decks
5%synergy
Unnatural Growth
14%inclusion4 decks29 decks
10%synergy
Kenrith's Transformation
14%inclusion4 decks29 decks
9%synergy
Primal Vigor
14%inclusion4 decks29 decks
11%synergy
Utopia Sprawl
10%inclusion3 decks29 decks
4%synergy
Imprisoned in the Moon
10%inclusion3 decks29 decks
6%synergy
Dismiss into Dream
10%inclusion3 decks29 decks
10%synergy
Growing Rites of Itlimoc
10%inclusion3 decks29 decks
4%synergy
Impostor Syndrome
10%inclusion1 decks10 decks
8%synergy
Cryptolith Rite
6.9%inclusion2 decks29 decks
4%synergy
Up the Beanstalk
6.9%inclusion2 decks29 decks
3%synergy
Carpet of Flowers
6.9%inclusion2 decks29 decks
4%synergy
Garruk's Uprising
6.9%inclusion2 decks29 decks
-9%synergy
Wizard Class
6.9%inclusion2 decks29 decks
1%synergy
Extravagant Replication
6.9%inclusion2 decks29 decks
5%synergy
Burgeoning
6.9%inclusion2 decks29 decks
0%synergy
Shark Typhoon
6.9%inclusion2 decks29 decks
6%synergy
Moonlit Meditation
6.3%inclusion1 decks16 decks
5%synergy
Battles
Invasion of Zendikar
6.9%inclusion2 decks29 decks
5%synergy
Planeswalkers
Oko, Thief of Crowns
48%inclusion14 decks29 decks
41%synergy
Vivien Reid
6.9%inclusion2 decks29 decks
5%synergy
Utility Lands
Yavimaya, Cradle of Growth
52%inclusion15 decks29 decks
30%synergy
Boseiju, Who Endures
52%inclusion15 decks29 decks
29%synergy
Reliquary Tower
52%inclusion15 decks29 decks
2%synergy
Command Beacon
38%inclusion11 decks29 decks
34%synergy
Otawara, Soaring City
28%inclusion8 decks29 decks
9%synergy
Mistrise Village
25%inclusion6 decks24 decks
14%synergy
Castle Garenbrig
24%inclusion7 decks29 decks
20%synergy
Evendo, Waking Haven
24%inclusion4 decks17 decks
18%synergy
Mystic Sanctuary
21%inclusion6 decks29 decks
8%synergy
Three Tree City
21%inclusion6 decks29 decks
16%synergy
Field of the Dead
17%inclusion5 decks29 decks
11%synergy
Temple of the False God
17%inclusion5 decks29 decks
2%synergy
Gaea's Cradle
14%inclusion4 decks29 decks
7%synergy
Restless Vinestalk
6.9%inclusion2 decks29 decks
1%synergy
Wasteland
6.9%inclusion2 decks29 decks
6%synergy
Urza's Saga
6.9%inclusion2 decks29 decks
1%synergy
Mirrorpool
6.9%inclusion2 decks29 decks
6%synergy
Glacial Chasm
6.9%inclusion2 decks29 decks
6%synergy
Mosswort Bridge
6.9%inclusion2 decks29 decks
-10%synergy
Homeward Path
6.9%inclusion2 decks29 decks
5%synergy
Castle Vantress
6.9%inclusion2 decks29 decks
0%synergy
Rogue's Passage
6.9%inclusion2 decks29 decks
-15%synergy
Mana Artifacts
Sol Ring
97%inclusion28 decks29 decks
16%synergy
Arcane Signet
79%inclusion23 decks29 decks
16%synergy
Thought Vessel
48%inclusion14 decks29 decks
28%synergy
Mana Vault
24%inclusion7 decks29 decks
18%synergy
Talisman of Curiosity
24%inclusion7 decks29 decks
3%synergy
Simic Signet
21%inclusion6 decks29 decks
-11%synergy
Lotus Petal
10%inclusion3 decks29 decks
3%synergy
Basalt Monolith
10%inclusion3 decks29 decks
3%synergy
Thran Dynamo
10%inclusion3 decks29 decks
8%synergy
Pristine Talisman
6.9%inclusion2 decks29 decks
7%synergy
Fellwar Stone
6.9%inclusion2 decks29 decks
-3%synergy
Firemind Vessel
6.9%inclusion2 decks29 decks
7%synergy
Lands
Command Tower
97%inclusion28 decks29 decks
11%synergy
Island
90%inclusion26 decks29 decks
-6%synergy
Forest
90%inclusion26 decks29 decks
-6%synergy
Breeding Pool
86%inclusion25 decks29 decks
41%synergy
Rejuvenating Springs
76%inclusion22 decks29 decks
32%synergy
Hinterland Harbor
76%inclusion22 decks29 decks
17%synergy
Misty Rainforest
62%inclusion18 decks29 decks
31%synergy
Yavimaya Coast
59%inclusion17 decks29 decks
6%synergy
Barkchannel Pathway
59%inclusion17 decks29 decks
38%synergy
Dreamroot Cascade
55%inclusion16 decks29 decks
13%synergy
Simic Growth Chamber
52%inclusion15 decks29 decks
3%synergy
Fabled Passage
41%inclusion12 decks29 decks
27%synergy
Flooded Grove
41%inclusion12 decks29 decks
0%synergy
Hedge Maze
38%inclusion11 decks29 decks
18%synergy
Tropical Island
34%inclusion10 decks29 decks
20%synergy
Myriad Landscape
31%inclusion9 decks29 decks
9%synergy
Vineglimmer Snarl
31%inclusion9 decks29 decks
-8%synergy
Waterlogged Grove
31%inclusion9 decks29 decks
10%synergy
Sink into Stupor
31%inclusion9 decks29 decks
20%synergy
Willowrush Verge
29%inclusion8 decks28 decks
12%synergy
Prismatic Vista
24%inclusion7 decks29 decks
17%synergy
Snow-Covered Island
24%inclusion7 decks29 decks
17%synergy
Snow-Covered Forest
24%inclusion7 decks29 decks
17%synergy
Temple of Mystery
24%inclusion7 decks29 decks
-14%synergy
Rimewood Falls
24%inclusion7 decks29 decks
15%synergy
Sea Gate Restoration
21%inclusion6 decks29 decks
15%synergy
Evolving Wilds
21%inclusion6 decks29 decks
-4%synergy
Windswept Heath
17%inclusion5 decks29 decks
7%synergy
Tangled Islet
17%inclusion5 decks29 decks
1%synergy
Reflecting Pool
17%inclusion5 decks29 decks
14%synergy
Botanical Sanctum
17%inclusion5 decks29 decks
5%synergy
Bala Ged Recovery
17%inclusion5 decks29 decks
7%synergy
Exotic Orchard
14%inclusion4 decks29 decks
-10%synergy
Polluted Delta
14%inclusion4 decks29 decks
3%synergy
Flooded Strand
14%inclusion4 decks29 decks
3%synergy
Terramorphic Expanse
10%inclusion3 decks29 decks
-9%synergy
Hydroelectric Specimen
10%inclusion3 decks29 decks
4%synergy
Wooded Foothills
10%inclusion3 decks29 decks
1%synergy
Verdant Catacombs
10%inclusion3 decks29 decks
1%synergy
Talon Gates of Madara
10%inclusion3 decks29 decks
3%synergy
Mana Confluence
10%inclusion3 decks29 decks
5%synergy
City of Brass
10%inclusion3 decks29 decks
4%synergy
Daily Bugle Building
10%inclusion1 decks10 decks
10%synergy
Blighted Woodland
6.9%inclusion2 decks29 decks
-1%synergy
Disciple of Freyalise
6.9%inclusion2 decks29 decks
2%synergy
Littjara Mirrorlake
6.9%inclusion2 decks29 decks
3%synergy
Gemstone Caverns
6.9%inclusion2 decks29 decks
1%synergy
Glasspool Mimic
6.9%inclusion2 decks29 decks
3%synergy
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