Koma, Cosmos Serpent (Commander) - Clones

Alternate Names:

The Monstrous SerpentThe Monstrous Serpent

Koma, Cosmos Serpent
Rank #300
285decks
As CommanderAs CardAverage DeckDecks
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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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Badgermole Cub
10%inclusion4 decks42 decks
5%synergy
Shared Roots
7.7%inclusion3 decks39 decks
4%synergy
The Unagi of Kyoshi Island
7.3%inclusion3 decks41 decks
2%synergy
Ember Island Production
2.6%inclusion1 decks38 decks
2%synergy
Agna Qel'a
2.6%inclusion1 decks38 decks
2%synergy
High Synergy Cards
Adrix and Nev, Twincasters
89%inclusion253 decks285 decks
80%synergy
Spark Double
87%inclusion247 decks285 decks
77%synergy
Sakashima of a Thousand Faces
80%inclusion229 decks285 decks
75%synergy
Irenicus's Vile Duplication
76%inclusion217 decks285 decks
70%synergy
Elemental Bond
72%inclusion204 decks285 decks
66%synergy
Sakashima the Impostor
65%inclusion184 decks285 decks
62%synergy
Whelming Wave
72%inclusion206 decks285 decks
61%synergy
Parallel Lives
66%inclusion187 decks285 decks
60%synergy
Double Major
66%inclusion187 decks285 decks
57%synergy
Helm of the Host
60%inclusion171 decks285 decks
55%synergy
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Cultivate
80%inclusion229 decks285 decks
33%synergy
Kodama's Reach
72%inclusion205 decks285 decks
36%synergy
Counterspell
71%inclusion203 decks285 decks
21%synergy
Rampant Growth
68%inclusion193 decks285 decks
27%synergy
Beast Within
62%inclusion177 decks285 decks
12%synergy
Heroic Intervention
62%inclusion176 decks285 decks
32%synergy
Koma, World-Eater
57%inclusion107 decks187 decks
44%synergy
Nature's Lore
57%inclusion163 decks285 decks
27%synergy
Farseek
56%inclusion161 decks285 decks
32%synergy
Doubling Season
56%inclusion160 decks285 decks
47%synergy
Game Changers
Cyclonic Rift
50%inclusion143 decks285 decks
24%synergy
Rhystic Study
44%inclusion124 decks285 decks
22%synergy
Fierce Guardianship
40%inclusion113 decks285 decks
22%synergy
Seedborn Muse
26%inclusion75 decks285 decks
11%synergy
Worldly Tutor
25%inclusion72 decks285 decks
10%synergy
Consecrated Sphinx
22%inclusion62 decks285 decks
13%synergy
Force of Will
16%inclusion47 decks285 decks
6%synergy
Mystical Tutor
16%inclusion47 decks285 decks
7%synergy
Ancient Tomb
16%inclusion45 decks285 decks
6%synergy
Gaea's Cradle
9.5%inclusion27 decks285 decks
2%synergy
Creatures
Serpent of Yawning Depths
54%inclusion154 decks285 decks
48%synergy
Junk Winder
53%inclusion150 decks285 decks
46%synergy
Birds of Paradise
51%inclusion146 decks285 decks
24%synergy
Aesi, Tyrant of Gyre Strait
48%inclusion137 decks285 decks
31%synergy
Spawning Kraken
47%inclusion134 decks285 decks
40%synergy
Llanowar Elves
46%inclusion132 decks285 decks
18%synergy
Craterhoof Behemoth
37%inclusion106 decks285 decks
28%synergy
Murkfiend Liege
36%inclusion102 decks285 decks
21%synergy
Clever Impersonator
35%inclusion101 decks285 decks
31%synergy
Elvish Mystic
35%inclusion100 decks285 decks
11%synergy
Sakura-Tribe Elder
35%inclusion100 decks285 decks
16%synergy
Esix, Fractal Bloom
34%inclusion97 decks285 decks
30%synergy
Glasspool Mimic
34%inclusion97 decks285 decks
30%synergy
Phyrexian Metamorph
34%inclusion96 decks285 decks
25%synergy
Roaming Throne
34%inclusion96 decks285 decks
26%synergy
Progenitor Mimic
33%inclusion95 decks285 decks
29%synergy
Summon: Leviathan
31%inclusion32 decks104 decks
24%synergy
Eternal Witness
30%inclusion86 decks285 decks
9%synergy
Fyndhorn Elves
30%inclusion85 decks285 decks
14%synergy
Octomancer
29%inclusion64 decks217 decks
25%synergy
Garruk's Packleader
28%inclusion81 decks285 decks
26%synergy
Arixmethes, Slumbering Isle
27%inclusion78 decks285 decks
14%synergy
Auton Soldier
25%inclusion71 decks285 decks
22%synergy
Tatyova, Benthic Druid
24%inclusion67 decks285 decks
-8%synergy
Enduring Vitality
23%inclusion47 decks207 decks
15%synergy
Mirror Image
22%inclusion63 decks285 decks
21%synergy
Ohran Frostfang
22%inclusion63 decks285 decks
18%synergy
Clone
21%inclusion60 decks285 decks
20%synergy
Stunt Double
20%inclusion58 decks285 decks
19%synergy
Undercover Operative
18%inclusion52 decks285 decks
17%synergy
Fanatic of Rhonas
18%inclusion42 decks231 decks
12%synergy
Phantasmal Image
18%inclusion51 decks285 decks
15%synergy
Archetype of Imagination
17%inclusion49 decks285 decks
13%synergy
Chameleon, Master of Disguise
17%inclusion11 decks64 decks
15%synergy
Curiosity Crafter
16%inclusion46 decks285 decks
13%synergy
Starwinder
15%inclusion13 decks85 decks
9%synergy
Coiling Oracle
14%inclusion41 decks285 decks
1%synergy
Mirrorhall Mimic
14%inclusion40 decks285 decks
13%synergy
Hullbreaker Horror
14%inclusion40 decks285 decks
-4%synergy
Pirated Copy
13%inclusion38 decks285 decks
13%synergy
Vizier of Many Faces
12%inclusion35 decks285 decks
12%synergy
Circle of Dreams Druid
12%inclusion34 decks285 decks
10%synergy
Azusa, Lost but Seeking
12%inclusion34 decks285 decks
-2%synergy
Jaheira, Friend of the Forest
12%inclusion34 decks285 decks
8%synergy
Toski, Bearer of Secrets
12%inclusion33 decks285 decks
8%synergy
Slinn Voda, the Rising Deep
11%inclusion32 decks285 decks
5%synergy
Uro, Titan of Nature's Wrath
11%inclusion32 decks285 decks
1%synergy
Troyan, Gutsy Explorer
11%inclusion31 decks285 decks
8%synergy
Scute Swarm
11%inclusion30 decks285 decks
-10%synergy
Delighted Halfling
11%inclusion30 decks285 decks
-1%synergy
Instants
Growth Spiral
52%inclusion148 decks285 decks
7%synergy
Second Harvest
49%inclusion139 decks285 decks
42%synergy
Mana Drain
41%inclusion117 decks285 decks
25%synergy
Arcane Denial
35%inclusion100 decks285 decks
13%synergy
An Offer You Can't Refuse
34%inclusion97 decks285 decks
11%synergy
Negate
33%inclusion95 decks285 decks
7%synergy
Pongify
33%inclusion93 decks285 decks
8%synergy
Rapid Hybridization
30%inclusion85 decks285 decks
4%synergy
Swan Song
28%inclusion80 decks285 decks
9%synergy
Cackling Counterpart
26%inclusion74 decks285 decks
23%synergy
Return of the Wildspeaker
24%inclusion69 decks285 decks
14%synergy
Krosan Grip
22%inclusion64 decks285 decks
15%synergy
Mystic Reflection
19%inclusion53 decks285 decks
16%synergy
Nature's Claim
17%inclusion49 decks285 decks
7%synergy
Tamiyo's Safekeeping
17%inclusion48 decks285 decks
11%synergy
Sublime Epiphany
16%inclusion47 decks285 decks
14%synergy
Reality Shift
16%inclusion47 decks285 decks
2%synergy
Harrow
16%inclusion45 decks285 decks
4%synergy
See Double
15%inclusion43 decks285 decks
13%synergy
Planar Genesis
14%inclusion33 decks231 decks
3%synergy
Sink into Stupor
14%inclusion33 decks232 decks
3%synergy
Chord of Calling
14%inclusion39 decks285 decks
6%synergy
Brainstorm
13%inclusion37 decks285 decks
-1%synergy
Simic Charm
11%inclusion32 decks285 decks
3%synergy
Snakeskin Veil
11%inclusion30 decks285 decks
5%synergy
Voidslime
11%inclusion30 decks285 decks
5%synergy
Archdruid's Charm
10%inclusion28 decks275 decks
4%synergy
Pact of Negation
10%inclusion29 decks285 decks
3%synergy
Return to Nature
10%inclusion28 decks285 decks
4%synergy
Force of Negation
10%inclusion28 decks285 decks
1%synergy
Plasm Capture
9.5%inclusion27 decks285 decks
6%synergy
Noxious Revival
9.5%inclusion27 decks285 decks
3%synergy
Perplexing Test
9.1%inclusion26 decks285 decks
5%synergy
Eureka Moment
8.4%inclusion24 decks285 decks
-2%synergy
Tyvar's Stand
7.7%inclusion22 decks285 decks
5%synergy
Disallow
7.7%inclusion22 decks285 decks
6%synergy
Stubborn Denial
7.7%inclusion22 decks285 decks
5%synergy
Resculpt
7.7%inclusion22 decks285 decks
2%synergy
Three Steps Ahead
7.5%inclusion19 decks252 decks
5%synergy
Narset's Reversal
7.0%inclusion20 decks285 decks
5%synergy
Force of Vigor
6.3%inclusion18 decks285 decks
2%synergy
Entish Restoration
6.3%inclusion18 decks285 decks
-3%synergy
Fated Infatuation
6.0%inclusion17 decks285 decks
5%synergy
Lazotep Plating
5.6%inclusion16 decks285 decks
5%synergy
Strix Serenade
5.6%inclusion13 decks232 decks
2%synergy
Collective Resistance
5.2%inclusion12 decks232 decks
2%synergy
Auroral Procession
5.1%inclusion6 decks117 decks
1%synergy
Sorceries
Three Visits
51%inclusion145 decks285 decks
28%synergy
Quantum Misalignment
51%inclusion144 decks285 decks
48%synergy
Rite of Replication
46%inclusion130 decks285 decks
38%synergy
Skyshroud Claim
33%inclusion94 decks285 decks
24%synergy
Quasiduplicate
28%inclusion81 decks285 decks
26%synergy
Explore
21%inclusion60 decks285 decks
1%synergy
Bala Ged Recovery
17%inclusion49 decks285 decks
7%synergy
Overwhelming Stampede
16%inclusion46 decks285 decks
4%synergy
Croaking Counterpart
16%inclusion45 decks285 decks
11%synergy
Triumph of the Hordes
15%inclusion44 decks285 decks
12%synergy
Finale of Devastation
15%inclusion44 decks285 decks
4%synergy
Shamanic Revelation
14%inclusion40 decks285 decks
9%synergy
Doppelgang
14%inclusion38 decks275 decks
7%synergy
Migration Path
12%inclusion35 decks285 decks
9%synergy
Distant Melody
11%inclusion31 decks285 decks
8%synergy
Rishkar's Expertise
10%inclusion29 decks285 decks
2%synergy
Sea Gate Restoration
10%inclusion28 decks285 decks
4%synergy
Spitting Image
10%inclusion28 decks285 decks
8%synergy
Regrowth
9.1%inclusion26 decks285 decks
5%synergy
Explosive Vegetation
8.8%inclusion25 decks285 decks
3%synergy
Fabricate
8.4%inclusion24 decks285 decks
2%synergy
Repudiate // Replicate
8.1%inclusion23 decks285 decks
6%synergy
Replication Technique
7.7%inclusion22 decks285 decks
4%synergy
Flare of Cultivation
7.6%inclusion20 decks263 decks
6%synergy
Green Sun's Zenith
7.4%inclusion21 decks285 decks
-1%synergy
Urban Evolution
7.0%inclusion20 decks285 decks
-3%synergy
Curse of the Swine
6.7%inclusion19 decks285 decks
-4%synergy
Ravenform
6.7%inclusion19 decks285 decks
2%synergy
Into the North
6.3%inclusion18 decks285 decks
5%synergy
Clone Legion
6.0%inclusion17 decks285 decks
5%synergy
Harmonize
5.6%inclusion16 decks285 decks
0%synergy
Rally the Galadhrim
5.3%inclusion15 decks285 decks
4%synergy
Bridgeworks Battle
5.2%inclusion12 decks232 decks
0%synergy
Utility Artifacts
Mirror Box
51%inclusion144 decks285 decks
47%synergy
Swiftfoot Boots
46%inclusion131 decks285 decks
20%synergy
Lightning Greaves
44%inclusion126 decks285 decks
22%synergy
Combine Chrysalis
31%inclusion87 decks285 decks
26%synergy
Mirror Gallery
22%inclusion64 decks285 decks
22%synergy
Eldrazi Monument
13%inclusion37 decks285 decks
12%synergy
Emerald Medallion
13%inclusion36 decks285 decks
10%synergy
The Great Henge
12%inclusion35 decks285 decks
3%synergy
Idol of Oblivion
10%inclusion29 decks285 decks
7%synergy
Sapphire Medallion
10%inclusion29 decks285 decks
7%synergy
Bident of Thassa
7.4%inclusion21 decks285 decks
0%synergy
Lithoform Engine
6.7%inclusion19 decks285 decks
6%synergy
Coat of Arms
5.6%inclusion16 decks285 decks
4%synergy
Enchantments
Tribute to the World Tree
50%inclusion142 decks285 decks
43%synergy
Mystic Remora
33%inclusion95 decks285 decks
18%synergy
Kindred Discovery
30%inclusion86 decks285 decks
20%synergy
Extravagant Replication
26%inclusion75 decks285 decks
24%synergy
Primal Vigor
22%inclusion62 decks285 decks
19%synergy
Growing Rites of Itlimoc
21%inclusion60 decks285 decks
15%synergy
Sylvan Library
21%inclusion59 decks285 decks
12%synergy
Cryptolith Rite
20%inclusion57 decks285 decks
17%synergy
Paradox Haze
17%inclusion49 decks285 decks
17%synergy
Vesuvan Duplimancy
16%inclusion46 decks285 decks
14%synergy
Beastmaster Ascension
16%inclusion45 decks285 decks
13%synergy
Exploration
15%inclusion44 decks285 decks
2%synergy
Moonlit Meditation
14%inclusion12 decks85 decks
13%synergy
Wild Growth
14%inclusion39 decks285 decks
5%synergy
Impostor Syndrome
12%inclusion8 decks65 decks
10%synergy
Utopia Sprawl
12%inclusion33 decks285 decks
5%synergy
Followed Footsteps
11%inclusion31 decks285 decks
10%synergy
Garruk's Uprising
10%inclusion29 decks285 decks
-6%synergy
Propaganda
10%inclusion29 decks285 decks
3%synergy
Asceticism
10%inclusion29 decks285 decks
7%synergy
Defense of the Heart
9.5%inclusion27 decks285 decks
7%synergy
Burgeoning
8.8%inclusion25 decks285 decks
2%synergy
Wilderness Reclamation
7.7%inclusion22 decks285 decks
-1%synergy
Mirror Room // Fractured Realm
7.2%inclusion15 decks209 decks
6%synergy
Unnatural Growth
7.0%inclusion20 decks285 decks
4%synergy
Imprisoned in the Moon
7.0%inclusion20 decks285 decks
3%synergy
Opposition
6.0%inclusion17 decks285 decks
6%synergy
Kenrith's Transformation
6.0%inclusion17 decks285 decks
2%synergy
Dismiss into Dream
5.3%inclusion15 decks285 decks
5%synergy
Planeswalkers
Oko, Thief of Crowns
28%inclusion80 decks285 decks
21%synergy
Utility Lands
Reliquary Tower
64%inclusion182 decks285 decks
14%synergy
Yavimaya, Cradle of Growth
30%inclusion86 decks285 decks
8%synergy
Boseiju, Who Endures
29%inclusion83 decks285 decks
7%synergy
Command Beacon
28%inclusion81 decks285 decks
24%synergy
Otawara, Soaring City
23%inclusion65 decks285 decks
4%synergy
Mystic Sanctuary
21%inclusion59 decks285 decks
8%synergy
Temple of the False God
20%inclusion57 decks285 decks
4%synergy
Mistrise Village
19%inclusion22 decks117 decks
8%synergy
Three Tree City
19%inclusion41 decks220 decks
14%synergy
Castle Garenbrig
18%inclusion50 decks285 decks
13%synergy
Mosswort Bridge
16%inclusion47 decks285 decks
-1%synergy
Evendo, Waking Haven
15%inclusion13 decks87 decks
10%synergy
Alchemist's Refuge
14%inclusion41 decks285 decks
-3%synergy
Rogue's Passage
8.4%inclusion24 decks285 decks
-13%synergy
Restless Vinestalk
7.7%inclusion22 decks285 decks
2%synergy
Lumbering Falls
6.3%inclusion18 decks285 decks
0%synergy
Mana Artifacts
Sol Ring
96%inclusion273 decks285 decks
15%synergy
Arcane Signet
82%inclusion234 decks285 decks
19%synergy
Simic Signet
47%inclusion133 decks285 decks
15%synergy
Talisman of Curiosity
37%inclusion106 decks285 decks
16%synergy
Thought Vessel
35%inclusion100 decks285 decks
15%synergy
Decanter of Endless Water
10%inclusion28 decks285 decks
5%synergy
Fellwar Stone
10%inclusion28 decks285 decks
0%synergy
Commander's Sphere
8.8%inclusion25 decks285 decks
1%synergy
Thran Dynamo
8.4%inclusion24 decks285 decks
6%synergy
Mana Vault
7.4%inclusion21 decks285 decks
1%synergy
Lands
Command Tower
93%inclusion264 decks285 decks
7%synergy
Forest
90%inclusion257 decks285 decks
-5%synergy
Island
89%inclusion255 decks285 decks
-6%synergy
Hinterland Harbor
76%inclusion216 decks285 decks
16%synergy
Rejuvenating Springs
71%inclusion201 decks285 decks
27%synergy
Breeding Pool
69%inclusion197 decks285 decks
23%synergy
Yavimaya Coast
69%inclusion196 decks285 decks
16%synergy
Dreamroot Cascade
64%inclusion182 decks285 decks
22%synergy
Simic Growth Chamber
60%inclusion170 decks285 decks
11%synergy
Barkchannel Pathway
49%inclusion141 decks285 decks
29%synergy
Flooded Grove
47%inclusion134 decks285 decks
6%synergy
Misty Rainforest
44%inclusion124 decks285 decks
12%synergy
Vineglimmer Snarl
41%inclusion118 decks285 decks
3%synergy
Temple of Mystery
40%inclusion114 decks285 decks
2%synergy
Glasspool Mimic
34%inclusion97 decks285 decks
30%synergy
Myriad Landscape
32%inclusion91 decks285 decks
10%synergy
Hedge Maze
29%inclusion80 decks275 decks
10%synergy
Exotic Orchard
28%inclusion79 decks285 decks
4%synergy
Waterlogged Grove
27%inclusion77 decks285 decks
6%synergy
Littjara Mirrorlake
24%inclusion67 decks285 decks
20%synergy
Willowrush Verge
23%inclusion34 decks149 decks
6%synergy
Evolving Wilds
22%inclusion63 decks285 decks
-3%synergy
Rimewood Falls
21%inclusion59 decks285 decks
11%synergy
Fabled Passage
20%inclusion57 decks285 decks
6%synergy
Tropical Island
20%inclusion57 decks285 decks
6%synergy
Tangled Islet
18%inclusion50 decks285 decks
1%synergy
Bala Ged Recovery
17%inclusion49 decks285 decks
7%synergy
Thornwood Falls
16%inclusion46 decks285 decks
-2%synergy
Snow-Covered Forest
15%inclusion43 decks285 decks
8%synergy
Sink into Stupor
14%inclusion33 decks232 decks
3%synergy
Snow-Covered Island
14%inclusion40 decks285 decks
7%synergy
Terramorphic Expanse
14%inclusion39 decks285 decks
-6%synergy
Botanical Sanctum
14%inclusion39 decks285 decks
1%synergy
Reflecting Pool
11%inclusion31 decks285 decks
8%synergy
Overflowing Basin
10%inclusion27 decks267 decks
-9%synergy
Sea Gate Restoration
10%inclusion28 decks285 decks
4%synergy
Blighted Woodland
9.1%inclusion26 decks285 decks
2%synergy
Prismatic Vista
8.4%inclusion24 decks285 decks
1%synergy
Windswept Heath
7.0%inclusion20 decks285 decks
-3%synergy
Verdant Catacombs
6.7%inclusion19 decks285 decks
-3%synergy
Path of Ancestry
6.7%inclusion19 decks285 decks
-11%synergy
Scalding Tarn
6.3%inclusion18 decks285 decks
-4%synergy
Flooded Strand
6.3%inclusion18 decks285 decks
-5%synergy
Simic Guildgate
5.6%inclusion16 decks285 decks
-5%synergy
Hydroelectric Specimen
5.2%inclusion12 decks231 decks
-1%synergy
Bridgeworks Battle
5.2%inclusion12 decks232 decks
0%synergy
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