Koma, Cosmos Serpent (Commander) - Upgraded Clones

Alternate Names:

The Monstrous SerpentThe Monstrous Serpent

Koma, Cosmos Serpent
Rank #306
43decks
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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Sodden Verdure
50%inclusion2 decks4 decks
47%synergy
Rain-Slicked Copse
25%inclusion1 decks4 decks
24%synergy
Shared Roots
11%inclusion2 decks18 decks
7%synergy
The Unagi of Kyoshi Island
11%inclusion2 decks19 decks
5%synergy
Badgermole Cub
10%inclusion2 decks20 decks
5%synergy
High Synergy Cards
Adrix and Nev, Twincasters
91%inclusion39 decks43 decks
82%synergy
Spark Double
91%inclusion39 decks43 decks
81%synergy
Elemental Bond
81%inclusion35 decks43 decks
76%synergy
Irenicus's Vile Duplication
77%inclusion33 decks43 decks
71%synergy
Whelming Wave
79%inclusion34 decks43 decks
68%synergy
Tribute to the World Tree
67%inclusion29 decks43 decks
61%synergy
Sakashima of a Thousand Faces
65%inclusion28 decks43 decks
60%synergy
Parallel Lives
65%inclusion28 decks43 decks
59%synergy
Sakashima the Impostor
60%inclusion26 decks43 decks
58%synergy
Serpent of Yawning Depths
60%inclusion26 decks43 decks
54%synergy
Top Cards
Cultivate
84%inclusion36 decks43 decks
37%synergy
Counterspell
81%inclusion35 decks43 decks
31%synergy
Beast Within
72%inclusion31 decks43 decks
22%synergy
Kodama's Reach
67%inclusion29 decks43 decks
31%synergy
Koma, World-Eater
65%inclusion28 decks43 decks
52%synergy
Rampant Growth
65%inclusion28 decks43 decks
25%synergy
Heroic Intervention
63%inclusion27 decks43 decks
32%synergy
Farseek
63%inclusion27 decks43 decks
38%synergy
Junk Winder
58%inclusion25 decks43 decks
52%synergy
Nature's Lore
58%inclusion25 decks43 decks
28%synergy
Game Changers
Rhystic Study
44%inclusion19 decks43 decks
22%synergy
Fierce Guardianship
37%inclusion16 decks43 decks
20%synergy
Cyclonic Rift
37%inclusion16 decks43 decks
11%synergy
Consecrated Sphinx
28%inclusion12 decks43 decks
19%synergy
Seedborn Muse
21%inclusion9 decks43 decks
5%synergy
Worldly Tutor
16%inclusion7 decks43 decks
1%synergy
Force of Will
7.0%inclusion3 decks43 decks
-3%synergy
Creatures
Birds of Paradise
51%inclusion22 decks43 decks
23%synergy
Summon: Leviathan
46%inclusion17 decks37 decks
39%synergy
Arixmethes, Slumbering Isle
44%inclusion19 decks43 decks
31%synergy
Sakura-Tribe Elder
42%inclusion18 decks43 decks
22%synergy
Elvish Mystic
40%inclusion17 decks43 decks
15%synergy
Aesi, Tyrant of Gyre Strait
40%inclusion17 decks43 decks
22%synergy
Llanowar Elves
40%inclusion17 decks43 decks
11%synergy
Spawning Kraken
40%inclusion17 decks43 decks
32%synergy
Garruk's Packleader
37%inclusion16 decks43 decks
35%synergy
Craterhoof Behemoth
35%inclusion15 decks43 decks
25%synergy
Roaming Throne
33%inclusion14 decks43 decks
25%synergy
Eternal Witness
30%inclusion13 decks43 decks
9%synergy
Octomancer
28%inclusion12 decks43 decks
23%synergy
Esix, Fractal Bloom
26%inclusion11 decks43 decks
22%synergy
Fyndhorn Elves
26%inclusion11 decks43 decks
10%synergy
Starwinder
24%inclusion8 decks33 decks
18%synergy
Tatyova, Benthic Druid
23%inclusion10 decks43 decks
-8%synergy
Enduring Vitality
23%inclusion10 decks43 decks
16%synergy
Fanatic of Rhonas
23%inclusion10 decks43 decks
17%synergy
Glasspool Mimic
23%inclusion10 decks43 decks
19%synergy
Chameleon, Master of Disguise
22%inclusion6 decks27 decks
20%synergy
Archetype of Imagination
21%inclusion9 decks43 decks
17%synergy
Murkfiend Liege
19%inclusion8 decks43 decks
4%synergy
Auton Soldier
19%inclusion8 decks43 decks
16%synergy
Enduring Curiosity
19%inclusion8 decks43 decks
15%synergy
Curiosity Crafter
16%inclusion7 decks43 decks
13%synergy
Coiling Oracle
16%inclusion7 decks43 decks
3%synergy
Uro, Titan of Nature's Wrath
16%inclusion7 decks43 decks
6%synergy
Circle of Dreams Druid
14%inclusion6 decks43 decks
12%synergy
Phyrexian Metamorph
14%inclusion6 decks43 decks
5%synergy
Gala Greeters
14%inclusion6 decks43 decks
12%synergy
Hullbreaker Horror
14%inclusion6 decks43 decks
-4%synergy
Clever Impersonator
14%inclusion6 decks43 decks
9%synergy
Maraleaf Pixie
12%inclusion5 decks43 decks
6%synergy
Reclamation Sage
12%inclusion5 decks43 decks
-2%synergy
Undercover Operative
12%inclusion5 decks43 decks
11%synergy
Vizier of Many Faces
12%inclusion5 decks43 decks
11%synergy
Druid of Purification
12%inclusion5 decks43 decks
10%synergy
Azusa, Lost but Seeking
12%inclusion5 decks43 decks
-2%synergy
Toski, Bearer of Secrets
12%inclusion5 decks43 decks
8%synergy
Guardian Augmenter
12%inclusion5 decks43 decks
10%synergy
Biovisionary
12%inclusion5 decks43 decks
9%synergy
Disciple of Freyalise
9.3%inclusion4 decks43 decks
5%synergy
Inga and Esika
9.3%inclusion4 decks43 decks
7%synergy
Progenitor Mimic
9.3%inclusion4 decks43 decks
5%synergy
Tendershoot Dryad
9.3%inclusion4 decks43 decks
7%synergy
Scute Swarm
9.3%inclusion4 decks43 decks
-12%synergy
Ohran Frostfang
9.3%inclusion4 decks43 decks
6%synergy
Champion of Lambholt
9.3%inclusion4 decks43 decks
4%synergy
Titan of Littjara
9.3%inclusion4 decks43 decks
8%synergy
Instants
Growth Spiral
56%inclusion24 decks43 decks
11%synergy
Double Major
49%inclusion21 decks43 decks
40%synergy
Rapid Hybridization
47%inclusion20 decks43 decks
20%synergy
Pongify
42%inclusion18 decks43 decks
17%synergy
Return of the Wildspeaker
42%inclusion18 decks43 decks
32%synergy
Second Harvest
42%inclusion18 decks43 decks
35%synergy
An Offer You Can't Refuse
40%inclusion17 decks43 decks
16%synergy
Mana Drain
40%inclusion17 decks43 decks
24%synergy
Arcane Denial
40%inclusion17 decks43 decks
17%synergy
Negate
30%inclusion13 decks43 decks
4%synergy
Krosan Grip
26%inclusion11 decks43 decks
18%synergy
Reality Shift
26%inclusion11 decks43 decks
11%synergy
Nature's Claim
23%inclusion10 decks43 decks
13%synergy
Swan Song
23%inclusion10 decks43 decks
4%synergy
Planar Genesis
23%inclusion10 decks43 decks
12%synergy
Stubborn Denial
21%inclusion9 decks43 decks
18%synergy
Tamiyo's Safekeeping
21%inclusion9 decks43 decks
15%synergy
Snakeskin Veil
19%inclusion8 decks43 decks
13%synergy
Sublime Epiphany
19%inclusion8 decks43 decks
17%synergy
Harrow
19%inclusion8 decks43 decks
7%synergy
Cackling Counterpart
19%inclusion8 decks43 decks
15%synergy
Mystic Reflection
16%inclusion7 decks43 decks
14%synergy
Return to Nature
16%inclusion7 decks43 decks
11%synergy
Lazotep Plating
16%inclusion7 decks43 decks
16%synergy
Voidslime
16%inclusion7 decks43 decks
11%synergy
See Double
14%inclusion6 decks43 decks
12%synergy
Three Steps Ahead
14%inclusion6 decks43 decks
11%synergy
Entish Restoration
14%inclusion6 decks43 decks
5%synergy
Resculpt
14%inclusion6 decks43 decks
8%synergy
Sink into Stupor
14%inclusion6 decks43 decks
2%synergy
Auroral Procession
13%inclusion5 decks39 decks
9%synergy
Plasm Capture
12%inclusion5 decks43 decks
8%synergy
Brainstorm
12%inclusion5 decks43 decks
-3%synergy
Archdruid's Charm
12%inclusion5 decks43 decks
5%synergy
Decisive Denial
9.3%inclusion4 decks43 decks
4%synergy
Legolas's Quick Reflexes
9.3%inclusion4 decks43 decks
7%synergy
Chord of Calling
9.3%inclusion4 decks43 decks
1%synergy
Aetherize
9.3%inclusion4 decks43 decks
-3%synergy
Slip Out the Back
9.3%inclusion4 decks43 decks
6%synergy
Disallow
9.3%inclusion4 decks43 decks
8%synergy
Perplexing Test
9.3%inclusion4 decks43 decks
5%synergy
Force of Negation
9.3%inclusion4 decks43 decks
1%synergy
Simic Charm
9.3%inclusion4 decks43 decks
1%synergy
Pact of Negation
9.3%inclusion4 decks43 decks
2%synergy
Wrap in Vigor
7.0%inclusion3 decks43 decks
6%synergy
Flare of Denial
7.0%inclusion3 decks43 decks
4%synergy
Tyvar's Stand
7.0%inclusion3 decks43 decks
4%synergy
Force of Vigor
7.0%inclusion3 decks43 decks
2%synergy
Saw It Coming
7.0%inclusion3 decks43 decks
6%synergy
Noxious Revival
7.0%inclusion3 decks43 decks
1%synergy
Sorceries
Quantum Misalignment
56%inclusion24 decks43 decks
53%synergy
Three Visits
56%inclusion24 decks43 decks
33%synergy
Skyshroud Claim
37%inclusion16 decks43 decks
28%synergy
Rite of Replication
30%inclusion13 decks43 decks
23%synergy
Explore
28%inclusion12 decks43 decks
8%synergy
Bala Ged Recovery
23%inclusion10 decks43 decks
13%synergy
Rishkar's Expertise
16%inclusion7 decks43 decks
8%synergy
Migration Path
16%inclusion7 decks43 decks
13%synergy
Overwhelming Stampede
16%inclusion7 decks43 decks
4%synergy
Ponder
14%inclusion6 decks43 decks
7%synergy
Triumph of the Hordes
14%inclusion6 decks43 decks
11%synergy
Repudiate // Replicate
14%inclusion6 decks43 decks
12%synergy
Sea Gate Restoration
12%inclusion5 decks43 decks
6%synergy
Finale of Devastation
12%inclusion5 decks43 decks
0%synergy
Broken Bond
12%inclusion5 decks43 decks
7%synergy
Urban Evolution
12%inclusion5 decks43 decks
2%synergy
Shamanic Revelation
12%inclusion5 decks43 decks
6%synergy
Raise the Palisade
12%inclusion5 decks43 decks
5%synergy
Into the North
9.3%inclusion4 decks43 decks
8%synergy
Rally the Galadhrim
9.3%inclusion4 decks43 decks
8%synergy
Spitting Image
9.3%inclusion4 decks43 decks
7%synergy
Regrowth
9.3%inclusion4 decks43 decks
6%synergy
Hunting Wilds
9.3%inclusion4 decks43 decks
9%synergy
Replication Technique
7.0%inclusion3 decks43 decks
4%synergy
Flare of Cultivation
7.0%inclusion3 decks43 decks
5%synergy
Stolen Identity
7.0%inclusion3 decks43 decks
6%synergy
Last March of the Ents
7.0%inclusion3 decks43 decks
3%synergy
Turntimber Symbiosis
7.0%inclusion3 decks43 decks
5%synergy
Curse of the Swine
7.0%inclusion3 decks43 decks
-4%synergy
Treasure Cruise
7.0%inclusion3 decks43 decks
4%synergy
Quasiduplicate
7.0%inclusion3 decks43 decks
4%synergy
Harmonize
7.0%inclusion3 decks43 decks
1%synergy
Vastwood Surge
7.0%inclusion3 decks43 decks
6%synergy
Search for Tomorrow
7.0%inclusion3 decks43 decks
2%synergy
Preordain
7.0%inclusion3 decks43 decks
-1%synergy
Distant Melody
7.0%inclusion3 decks43 decks
4%synergy
River's Rebuke
7.0%inclusion3 decks43 decks
4%synergy
Ravenform
7.0%inclusion3 decks43 decks
3%synergy
Glimpse the Core
7.0%inclusion3 decks43 decks
6%synergy
Spirit Water Revival
5.6%inclusion1 decks18 decks
5%synergy
Ember Island Production
5.6%inclusion1 decks18 decks
5%synergy
Utility Artifacts
Lightning Greaves
49%inclusion21 decks43 decks
27%synergy
Helm of the Host
44%inclusion19 decks43 decks
39%synergy
Swiftfoot Boots
40%inclusion17 decks43 decks
14%synergy
Mirror Box
35%inclusion15 decks43 decks
31%synergy
Combine Chrysalis
33%inclusion14 decks43 decks
28%synergy
Eldrazi Monument
19%inclusion8 decks43 decks
18%synergy
Emerald Medallion
14%inclusion6 decks43 decks
11%synergy
Bident of Thassa
14%inclusion6 decks43 decks
7%synergy
Sapphire Medallion
14%inclusion6 decks43 decks
11%synergy
The Great Henge
7.0%inclusion3 decks43 decks
-2%synergy
Enchantments
Doubling Season
53%inclusion23 decks43 decks
44%synergy
Kindred Discovery
47%inclusion20 decks43 decks
37%synergy
Mystic Remora
42%inclusion18 decks43 decks
26%synergy
Moonlit Meditation
24%inclusion8 decks33 decks
23%synergy
Cryptolith Rite
21%inclusion9 decks43 decks
18%synergy
Extravagant Replication
19%inclusion8 decks43 decks
16%synergy
Defense of the Heart
16%inclusion7 decks43 decks
14%synergy
Growing Rites of Itlimoc
16%inclusion7 decks43 decks
10%synergy
Impostor Syndrome
15%inclusion4 decks27 decks
13%synergy
Wild Growth
14%inclusion6 decks43 decks
5%synergy
Opposition
14%inclusion6 decks43 decks
14%synergy
Paradox Haze
14%inclusion6 decks43 decks
14%synergy
Exploration
12%inclusion5 decks43 decks
-2%synergy
Verity Circle
12%inclusion5 decks43 decks
11%synergy
Garruk's Uprising
12%inclusion5 decks43 decks
-5%synergy
Imprisoned in the Moon
12%inclusion5 decks43 decks
8%synergy
Dismiss into Dream
12%inclusion5 decks43 decks
11%synergy
Primal Vigor
12%inclusion5 decks43 decks
9%synergy
Propaganda
12%inclusion5 decks43 decks
5%synergy
Utopia Sprawl
9.3%inclusion4 decks43 decks
3%synergy
Sylvan Library
9.3%inclusion4 decks43 decks
0%synergy
Vesuvan Duplimancy
7.0%inclusion3 decks43 decks
5%synergy
Wilderness Reclamation
7.0%inclusion3 decks43 decks
-2%synergy
Back from the Brink
7.0%inclusion3 decks43 decks
7%synergy
Khalni Heart Expedition
7.0%inclusion3 decks43 decks
3%synergy
Battles
Invasion of Ikoria
7.0%inclusion3 decks43 decks
3%synergy
Invasion of Zendikar
7.0%inclusion3 decks43 decks
5%synergy
Planeswalkers
Oko, Thief of Crowns
30%inclusion13 decks43 decks
23%synergy
Utility Lands
Reliquary Tower
70%inclusion30 decks43 decks
20%synergy
Mystic Sanctuary
35%inclusion15 decks43 decks
22%synergy
Boseiju, Who Endures
30%inclusion13 decks43 decks
8%synergy
Otawara, Soaring City
30%inclusion13 decks43 decks
11%synergy
Temple of the False God
28%inclusion12 decks43 decks
12%synergy
Mistrise Village
26%inclusion10 decks39 decks
15%synergy
Mosswort Bridge
26%inclusion11 decks43 decks
8%synergy
Yavimaya, Cradle of Growth
26%inclusion11 decks43 decks
3%synergy
Alchemist's Refuge
21%inclusion9 decks43 decks
4%synergy
Command Beacon
21%inclusion9 decks43 decks
17%synergy
Rivendell
14%inclusion6 decks43 decks
8%synergy
Three Tree City
12%inclusion5 decks43 decks
7%synergy
War Room
9.3%inclusion4 decks43 decks
8%synergy
Thespian's Stage
9.3%inclusion4 decks43 decks
2%synergy
Dark Depths
9.3%inclusion4 decks43 decks
3%synergy
Castle Vantress
9.3%inclusion4 decks43 decks
2%synergy
Castle Garenbrig
9.3%inclusion4 decks43 decks
5%synergy
Restless Vinestalk
7.0%inclusion3 decks43 decks
2%synergy
Scavenger Grounds
7.0%inclusion3 decks43 decks
3%synergy
Lumbering Falls
7.0%inclusion3 decks43 decks
0%synergy
Strip Mine
7.0%inclusion3 decks43 decks
4%synergy
Rogue's Passage
7.0%inclusion3 decks43 decks
-15%synergy
Bonders' Enclave
7.0%inclusion3 decks43 decks
5%synergy
Evendo, Waking Haven
6.1%inclusion2 decks33 decks
1%synergy
Mana Artifacts
Sol Ring
95%inclusion41 decks43 decks
15%synergy
Arcane Signet
77%inclusion33 decks43 decks
14%synergy
Simic Signet
33%inclusion14 decks43 decks
1%synergy
Thought Vessel
30%inclusion13 decks43 decks
10%synergy
Talisman of Curiosity
28%inclusion12 decks43 decks
6%synergy
Fellwar Stone
14%inclusion6 decks43 decks
4%synergy
Decanter of Endless Water
9.3%inclusion4 decks43 decks
4%synergy
Thran Dynamo
9.3%inclusion4 decks43 decks
6%synergy
Replicating Ring
7.0%inclusion3 decks43 decks
5%synergy
Lands
Command Tower
98%inclusion42 decks43 decks
12%synergy
Island
88%inclusion38 decks43 decks
-7%synergy
Forest
88%inclusion38 decks43 decks
-7%synergy
Hinterland Harbor
84%inclusion36 decks43 decks
24%synergy
Yavimaya Coast
77%inclusion33 decks43 decks
24%synergy
Breeding Pool
70%inclusion30 decks43 decks
23%synergy
Dreamroot Cascade
70%inclusion30 decks43 decks
27%synergy
Rejuvenating Springs
65%inclusion28 decks43 decks
21%synergy
Simic Growth Chamber
56%inclusion24 decks43 decks
8%synergy
Temple of Mystery
47%inclusion20 decks43 decks
8%synergy
Hedge Maze
47%inclusion20 decks43 decks
27%synergy
Flooded Grove
47%inclusion20 decks43 decks
5%synergy
Misty Rainforest
42%inclusion18 decks43 decks
10%synergy
Waterlogged Grove
42%inclusion18 decks43 decks
21%synergy
Vineglimmer Snarl
40%inclusion17 decks43 decks
1%synergy
Barkchannel Pathway
40%inclusion17 decks43 decks
19%synergy
Willowrush Verge
29%inclusion12 decks42 decks
12%synergy
Evolving Wilds
26%inclusion11 decks43 decks
0%synergy
Myriad Landscape
23%inclusion10 decks43 decks
1%synergy
Tangled Islet
23%inclusion10 decks43 decks
7%synergy
Tropical Island
23%inclusion10 decks43 decks
9%synergy
Rimewood Falls
23%inclusion10 decks43 decks
14%synergy
Glasspool Mimic
23%inclusion10 decks43 decks
19%synergy
Bala Ged Recovery
23%inclusion10 decks43 decks
13%synergy
Exotic Orchard
21%inclusion9 decks43 decks
-3%synergy
Snow-Covered Island
19%inclusion8 decks43 decks
12%synergy
Snow-Covered Forest
19%inclusion8 decks43 decks
12%synergy
Path of Ancestry
19%inclusion8 decks43 decks
2%synergy
Littjara Mirrorlake
16%inclusion7 decks43 decks
12%synergy
Fabled Passage
14%inclusion6 decks43 decks
-1%synergy
Sink into Stupor
14%inclusion6 decks43 decks
2%synergy
Thornwood Falls
14%inclusion6 decks43 decks
-4%synergy
Sea Gate Restoration
12%inclusion5 decks43 decks
6%synergy
Botanical Sanctum
12%inclusion5 decks43 decks
-1%synergy
Disciple of Freyalise
9.3%inclusion4 decks43 decks
5%synergy
Wooded Foothills
9.3%inclusion4 decks43 decks
0%synergy
Verdant Catacombs
9.3%inclusion4 decks43 decks
0%synergy
Scalding Tarn
9.3%inclusion4 decks43 decks
-1%synergy
Blighted Woodland
7.0%inclusion3 decks43 decks
0%synergy
Terramorphic Expanse
7.0%inclusion3 decks43 decks
-13%synergy
Windswept Heath
7.0%inclusion3 decks43 decks
-4%synergy
Turntimber Symbiosis
7.0%inclusion3 decks43 decks
5%synergy
Hydroelectric Specimen
7.0%inclusion3 decks43 decks
1%synergy
Overflowing Basin
7.0%inclusion3 decks43 decks
-12%synergy
Demolition Field
7.0%inclusion3 decks43 decks
4%synergy
Plaza of Heroes
7.0%inclusion3 decks43 decks
6%synergy
Polluted Delta
7.0%inclusion3 decks43 decks
-4%synergy
Flooded Strand
7.0%inclusion3 decks43 decks
-4%synergy
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