Koma, Cosmos Serpent (Commander)

Alternate Names:

The Monstrous SerpentThe Monstrous Serpent

Koma, Cosmos Serpent
Rank #297
6,663decks
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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The Unagi of Kyoshi Island
11%inclusion63 decks564 decks
7%synergy
Shared Roots
6.4%inclusion34 decks534 decks
4%synergy
Ember Island Production
2.4%inclusion13 decks534 decks
2%synergy
Wan Shi Tong, Librarian
2.2%inclusion13 decks597 decks
-3%synergy
Badgermole Cub
2.0%inclusion12 decks597 decks
-2%synergy
High Synergy Cards
Adrix and Nev, Twincasters
76%inclusion5.07K decks6.66K decks
68%synergy
Elemental Bond
67%inclusion4.50K decks6.66K decks
62%synergy
Whelming Wave
73%inclusion4.87K decks6.66K decks
62%synergy
Spark Double
63%inclusion4.23K decks6.66K decks
54%synergy
Koma, World-Eater
65%inclusion2.96K decks4.58K decks
51%synergy
Junk Winder
57%inclusion3.81K decks6.66K decks
51%synergy
Parallel Lives
55%inclusion3.64K decks6.66K decks
49%synergy
Serpent of Yawning Depths
54%inclusion3.63K decks6.66K decks
48%synergy
Irenicus's Vile Duplication
53%inclusion3.52K decks6.66K decks
47%synergy
Sakashima of a Thousand Faces
50%inclusion3.30K decks6.66K decks
45%synergy
Top Cards
Cultivate
78%inclusion5.19K decks6.66K decks
31%synergy
Counterspell
74%inclusion4.91K decks6.66K decks
24%synergy
Kodama's Reach
70%inclusion4.70K decks6.66K decks
34%synergy
Rampant Growth
69%inclusion4.60K decks6.66K decks
28%synergy
Beast Within
61%inclusion4.09K decks6.66K decks
11%synergy
Nature's Lore
58%inclusion3.87K decks6.66K decks
28%synergy
Growth Spiral
56%inclusion3.76K decks6.66K decks
12%synergy
Heroic Intervention
54%inclusion3.58K decks6.66K decks
23%synergy
Farseek
53%inclusion3.55K decks6.66K decks
29%synergy
Aesi, Tyrant of Gyre Strait
53%inclusion3.50K decks6.66K decks
35%synergy
Game Changers
Cyclonic Rift
44%inclusion2.94K decks6.66K decks
18%synergy
Rhystic Study
40%inclusion2.67K decks6.66K decks
18%synergy
Fierce Guardianship
33%inclusion2.17K decks6.66K decks
15%synergy
Seedborn Muse
29%inclusion1.92K decks6.66K decks
13%synergy
Worldly Tutor
23%inclusion1.50K decks6.66K decks
7%synergy
Consecrated Sphinx
20%inclusion1.35K decks6.66K decks
11%synergy
Mystical Tutor
17%inclusion1.10K decks6.66K decks
7%synergy
Force of Will
14%inclusion941 decks6.66K decks
4%synergy
Ancient Tomb
13%inclusion870 decks6.66K decks
4%synergy
Gaea's Cradle
10%inclusion675 decks6.66K decks
3%synergy
Creatures
Llanowar Elves
48%inclusion3.23K decks6.66K decks
21%synergy
Spawning Kraken
48%inclusion3.17K decks6.66K decks
40%synergy
Birds of Paradise
46%inclusion3.05K decks6.66K decks
18%synergy
Arixmethes, Slumbering Isle
42%inclusion2.81K decks6.66K decks
29%synergy
Sakura-Tribe Elder
40%inclusion2.63K decks6.66K decks
20%synergy
Sakashima the Impostor
38%inclusion2.56K decks6.66K decks
36%synergy
Elvish Mystic
38%inclusion2.54K decks6.66K decks
14%synergy
Tatyova, Benthic Druid
38%inclusion2.50K decks6.66K decks
6%synergy
Murkfiend Liege
36%inclusion2.38K decks6.66K decks
21%synergy
Garruk's Packleader
33%inclusion2.19K decks6.66K decks
31%synergy
Craterhoof Behemoth
32%inclusion2.11K decks6.66K decks
22%synergy
Hullbreaker Horror
30%inclusion2.01K decks6.66K decks
13%synergy
Eternal Witness
29%inclusion1.95K decks6.66K decks
8%synergy
Ohran Frostfang
29%inclusion1.93K decks6.66K decks
25%synergy
Roaming Throne
28%inclusion1.87K decks6.66K decks
20%synergy
Fyndhorn Elves
28%inclusion1.86K decks6.66K decks
12%synergy
Summon: Leviathan
27%inclusion649 decks2.41K decks
20%synergy
Slinn Voda, the Rising Deep
25%inclusion1.69K decks6.66K decks
19%synergy
Enduring Vitality
25%inclusion1.25K decks5.02K decks
17%synergy
Octomancer
25%inclusion1.32K decks5.33K decks
20%synergy
Esix, Fractal Bloom
24%inclusion1.60K decks6.66K decks
20%synergy
Archetype of Imagination
22%inclusion1.48K decks6.66K decks
18%synergy
Coiling Oracle
21%inclusion1.37K decks6.66K decks
7%synergy
Fanatic of Rhonas
20%inclusion1.10K decks5.63K decks
14%synergy
Scourge of Fleets
16%inclusion1.07K decks6.66K decks
8%synergy
Curiosity Crafter
15%inclusion985 decks6.66K decks
11%synergy
Xolatoyac, the Smiling Flood
15%inclusion984 decks6.66K decks
7%synergy
Reclamation Sage
15%inclusion975 decks6.66K decks
0%synergy
Nezahal, Primal Tide
15%inclusion973 decks6.66K decks
4%synergy
Scute Swarm
14%inclusion964 decks6.66K decks
-7%synergy
Delighted Halfling
14%inclusion906 decks6.66K decks
2%synergy
Enduring Curiosity
13%inclusion677 decks5.08K decks
10%synergy
Nadir Kraken
13%inclusion887 decks6.66K decks
9%synergy
Avenger of Zendikar
13%inclusion864 decks6.66K decks
-5%synergy
Starwinder
13%inclusion225 decks1.74K decks
6%synergy
Toski, Bearer of Secrets
13%inclusion855 decks6.66K decks
9%synergy
Azusa, Lost but Seeking
12%inclusion823 decks6.66K decks
-2%synergy
Chameleon, Master of Disguise
12%inclusion148 decks1.21K decks
10%synergy
Troyan, Gutsy Explorer
12%inclusion804 decks6.66K decks
9%synergy
Stormtide Leviathan
12%inclusion786 decks6.66K decks
6%synergy
Saryth, the Viper's Fang
11%inclusion753 decks6.66K decks
10%synergy
Rampaging Baloths
11%inclusion749 decks6.66K decks
-6%synergy
Progenitor Mimic
10%inclusion673 decks6.66K decks
5%synergy
Circle of Dreams Druid
10%inclusion667 decks6.66K decks
8%synergy
Uro, Titan of Nature's Wrath
10%inclusion666 decks6.66K decks
0%synergy
Lotus Cobra
10%inclusion666 decks6.66K decks
-4%synergy
Jaheira, Friend of the Forest
10%inclusion639 decks6.66K decks
6%synergy
Inga and Esika
9.5%inclusion632 decks6.66K decks
7%synergy
Clever Impersonator
9.5%inclusion630 decks6.66K decks
5%synergy
Kiora, Sovereign of the Deep
9.2%inclusion615 decks6.66K decks
7%synergy
Instants
Negate
47%inclusion3.12K decks6.66K decks
21%synergy
Double Major
47%inclusion3.11K decks6.66K decks
38%synergy
Pongify
39%inclusion2.62K decks6.66K decks
15%synergy
Second Harvest
37%inclusion2.47K decks6.66K decks
31%synergy
Arcane Denial
37%inclusion2.47K decks6.66K decks
15%synergy
An Offer You Can't Refuse
36%inclusion2.42K decks6.66K decks
13%synergy
Mana Drain
35%inclusion2.31K decks6.66K decks
19%synergy
Swan Song
32%inclusion2.12K decks6.66K decks
13%synergy
Return of the Wildspeaker
32%inclusion2.12K decks6.66K decks
21%synergy
Rapid Hybridization
31%inclusion2.03K decks6.66K decks
4%synergy
Krosan Grip
23%inclusion1.56K decks6.66K decks
15%synergy
Simic Charm
19%inclusion1.27K decks6.66K decks
11%synergy
Reality Shift
18%inclusion1.21K decks6.66K decks
4%synergy
Nature's Claim
17%inclusion1.10K decks6.66K decks
7%synergy
Brainstorm
16%inclusion1.06K decks6.66K decks
2%synergy
Planar Genesis
15%inclusion841 decks5.61K decks
4%synergy
Harrow
15%inclusion980 decks6.66K decks
3%synergy
Tamiyo's Safekeeping
13%inclusion869 decks6.66K decks
7%synergy
Voidslime
13%inclusion840 decks6.66K decks
8%synergy
Return to Nature
13%inclusion839 decks6.66K decks
7%synergy
Eureka Moment
12%inclusion808 decks6.66K decks
1%synergy
Aetherize
12%inclusion801 decks6.66K decks
0%synergy
Snakeskin Veil
12%inclusion778 decks6.66K decks
6%synergy
Force of Negation
11%inclusion752 decks6.66K decks
3%synergy
Sink into Stupor
11%inclusion635 decks5.64K decks
0%synergy
Plasm Capture
11%inclusion745 decks6.66K decks
8%synergy
Mystic Reflection
11%inclusion738 decks6.66K decks
9%synergy
Chord of Calling
10%inclusion682 decks6.66K decks
3%synergy
Pact of Negation
9.0%inclusion600 decks6.66K decks
2%synergy
Entish Restoration
8.4%inclusion562 decks6.66K decks
-1%synergy
Archdruid's Charm
8.0%inclusion516 decks6.42K decks
2%synergy
Perplexing Test
8.0%inclusion535 decks6.66K decks
3%synergy
Noxious Revival
7.7%inclusion515 decks6.66K decks
2%synergy
Resculpt
7.7%inclusion511 decks6.66K decks
2%synergy
Decisive Denial
7.6%inclusion508 decks6.66K decks
3%synergy
Stubborn Denial
7.6%inclusion508 decks6.66K decks
5%synergy
Disallow
7.5%inclusion501 decks6.66K decks
6%synergy
Sublime Epiphany
7.5%inclusion501 decks6.66K decks
5%synergy
Narset's Reversal
6.6%inclusion437 decks6.66K decks
5%synergy
Tyvar's Stand
6.5%inclusion435 decks6.66K decks
4%synergy
Strix Serenade
6.2%inclusion351 decks5.64K decks
2%synergy
Force of Vigor
5.7%inclusion381 decks6.66K decks
1%synergy
Auroral Procession
5.6%inclusion167 decks2.99K decks
2%synergy
Lazotep Plating
5.6%inclusion371 decks6.66K decks
5%synergy
Collective Resistance
5.5%inclusion313 decks5.64K decks
2%synergy
Joint Exploration
5.5%inclusion366 decks6.66K decks
0%synergy
Sorceries
Three Visits
49%inclusion3.23K decks6.66K decks
25%synergy
Skyshroud Claim
38%inclusion2.52K decks6.66K decks
29%synergy
Quantum Misalignment
28%inclusion1.85K decks6.66K decks
25%synergy
Explore
28%inclusion1.85K decks6.66K decks
7%synergy
Overwhelming Stampede
24%inclusion1.59K decks6.66K decks
12%synergy
Rite of Replication
17%inclusion1.14K decks6.66K decks
10%synergy
Shamanic Revelation
16%inclusion1.08K decks6.66K decks
11%synergy
Migration Path
15%inclusion1K decks6.66K decks
12%synergy
Urban Evolution
14%inclusion955 decks6.66K decks
5%synergy
Rishkar's Expertise
14%inclusion931 decks6.66K decks
6%synergy
Triumph of the Hordes
13%inclusion846 decks6.66K decks
10%synergy
Distant Melody
12%inclusion830 decks6.66K decks
9%synergy
Bala Ged Recovery
12%inclusion827 decks6.66K decks
2%synergy
Finale of Devastation
12%inclusion815 decks6.66K decks
1%synergy
Explosive Vegetation
12%inclusion788 decks6.66K decks
6%synergy
Harmonize
11%inclusion719 decks6.66K decks
5%synergy
Curse of the Swine
8.9%inclusion590 decks6.66K decks
-2%synergy
Search for Tomorrow
8.7%inclusion582 decks6.66K decks
4%synergy
Ponder
8.3%inclusion554 decks6.66K decks
1%synergy
Regrowth
7.6%inclusion507 decks6.66K decks
4%synergy
Doppelgang
7.2%inclusion464 decks6.43K decks
1%synergy
Ravenform
6.9%inclusion463 decks6.66K decks
2%synergy
Sea Gate Restoration
6.9%inclusion462 decks6.66K decks
1%synergy
Green Sun's Zenith
6.5%inclusion432 decks6.66K decks
-2%synergy
Preposterous Proportions
6.3%inclusion286 decks4.53K decks
5%synergy
Windfall
6.0%inclusion403 decks6.66K decks
2%synergy
Ezuri's Predation
6.0%inclusion400 decks6.66K decks
-2%synergy
Preordain
5.5%inclusion368 decks6.66K decks
-3%synergy
Quasiduplicate
5.4%inclusion357 decks6.66K decks
3%synergy
Broken Bond
5.2%inclusion348 decks6.66K decks
0%synergy
Flare of Cultivation
5.2%inclusion318 decks6.17K decks
3%synergy
Utility Artifacts
Swiftfoot Boots
45%inclusion2.98K decks6.66K decks
19%synergy
Helm of the Host
43%inclusion2.86K decks6.66K decks
38%synergy
Lightning Greaves
42%inclusion2.77K decks6.66K decks
20%synergy
Combine Chrysalis
26%inclusion1.71K decks6.66K decks
21%synergy
Mirror Box
18%inclusion1.18K decks6.66K decks
14%synergy
Emerald Medallion
13%inclusion872 decks6.66K decks
10%synergy
The Great Henge
12%inclusion780 decks6.66K decks
3%synergy
Idol of Oblivion
11%inclusion755 decks6.66K decks
8%synergy
Sapphire Medallion
10%inclusion680 decks6.66K decks
7%synergy
Eldrazi Monument
10%inclusion639 decks6.66K decks
9%synergy
Bident of Thassa
9.4%inclusion626 decks6.66K decks
2%synergy
Coat of Arms
7.6%inclusion504 decks6.66K decks
6%synergy
The One Ring
7.0%inclusion465 decks6.66K decks
-1%synergy
Banner of Kinship
5.8%inclusion263 decks4.56K decks
4%synergy
Skullclamp
5.1%inclusion343 decks6.66K decks
4%synergy
Enchantments
Doubling Season
49%inclusion3.26K decks6.66K decks
39%synergy
Tribute to the World Tree
44%inclusion2.94K decks6.66K decks
38%synergy
Kindred Discovery
31%inclusion2.07K decks6.66K decks
21%synergy
Mystic Remora
28%inclusion1.85K decks6.66K decks
12%synergy
Primal Vigor
18%inclusion1.22K decks6.66K decks
15%synergy
Garruk's Uprising
18%inclusion1.20K decks6.66K decks
2%synergy
Growing Rites of Itlimoc
18%inclusion1.18K decks6.66K decks
12%synergy
Sylvan Library
15%inclusion1.03K decks6.66K decks
6%synergy
Wild Growth
15%inclusion1.01K decks6.66K decks
6%synergy
Exploration
15%inclusion986 decks6.66K decks
1%synergy
Beastmaster Ascension
15%inclusion980 decks6.66K decks
12%synergy
Cryptolith Rite
15%inclusion968 decks6.66K decks
11%synergy
Utopia Sprawl
13%inclusion876 decks6.66K decks
7%synergy
Paradox Haze
12%inclusion827 decks6.66K decks
12%synergy
Propaganda
11%inclusion735 decks6.66K decks
4%synergy
Wilderness Reclamation
10%inclusion672 decks6.66K decks
1%synergy
Unnatural Growth
10%inclusion663 decks6.66K decks
7%synergy
Impostor Syndrome
9.2%inclusion113 decks1.22K decks
7%synergy
Defense of the Heart
9.0%inclusion602 decks6.66K decks
7%synergy
Moonlit Meditation
8.7%inclusion152 decks1.75K decks
7%synergy
Extravagant Replication
7.8%inclusion521 decks6.66K decks
5%synergy
Imprisoned in the Moon
7.7%inclusion515 decks6.66K decks
4%synergy
Burgeoning
7.7%inclusion513 decks6.66K decks
1%synergy
Kenrith's Transformation
7.2%inclusion481 decks6.66K decks
3%synergy
Asceticism
7.2%inclusion478 decks6.66K decks
4%synergy
Ominous Seas
6.8%inclusion453 decks6.66K decks
2%synergy
Verity Circle
5.7%inclusion377 decks6.66K decks
5%synergy
Dismiss into Dream
5.4%inclusion360 decks6.66K decks
5%synergy
Planeswalkers
Oko, Thief of Crowns
21%inclusion1.39K decks6.66K decks
14%synergy
Kiora, the Crashing Wave
8.0%inclusion530 decks6.66K decks
5%synergy
Utility Lands
Reliquary Tower
61%inclusion4.05K decks6.66K decks
11%synergy
Boseiju, Who Endures
25%inclusion1.69K decks6.66K decks
3%synergy
Yavimaya, Cradle of Growth
24%inclusion1.62K decks6.66K decks
2%synergy
Otawara, Soaring City
21%inclusion1.39K decks6.66K decks
2%synergy
Temple of the False God
20%inclusion1.32K decks6.66K decks
4%synergy
Command Beacon
18%inclusion1.22K decks6.66K decks
14%synergy
Mosswort Bridge
17%inclusion1.10K decks6.66K decks
-1%synergy
Three Tree City
16%inclusion865 decks5.37K decks
11%synergy
Rogue's Passage
15%inclusion990 decks6.66K decks
-7%synergy
Mystic Sanctuary
14%inclusion959 decks6.66K decks
2%synergy
Castle Garenbrig
13%inclusion864 decks6.66K decks
8%synergy
Mistrise Village
12%inclusion370 decks2.99K decks
2%synergy
Alchemist's Refuge
12%inclusion788 decks6.66K decks
-6%synergy
Evendo, Waking Haven
11%inclusion204 decks1.79K decks
6%synergy
Restless Vinestalk
5.8%inclusion388 decks6.66K decks
0%synergy
Castle Vantress
5.7%inclusion382 decks6.66K decks
-1%synergy
Lumbering Falls
5.2%inclusion346 decks6.66K decks
-2%synergy
Mana Artifacts
Sol Ring
92%inclusion6.11K decks6.66K decks
11%synergy
Arcane Signet
78%inclusion5.18K decks6.66K decks
15%synergy
Simic Signet
44%inclusion2.93K decks6.66K decks
12%synergy
Thought Vessel
39%inclusion2.59K decks6.66K decks
19%synergy
Talisman of Curiosity
33%inclusion2.23K decks6.66K decks
12%synergy
Commander's Sphere
12%inclusion769 decks6.66K decks
3%synergy
Fellwar Stone
11%inclusion736 decks6.66K decks
2%synergy
Decanter of Endless Water
7.4%inclusion491 decks6.66K decks
2%synergy
Mana Vault
7.1%inclusion470 decks6.66K decks
1%synergy
Thran Dynamo
7.0%inclusion464 decks6.66K decks
4%synergy
Mind Stone
6.2%inclusion411 decks6.66K decks
2%synergy
Lands
Forest
95%inclusion6.30K decks6.66K decks
-1%synergy
Island
94%inclusion6.29K decks6.66K decks
-1%synergy
Command Tower
86%inclusion5.75K decks6.66K decks
1%synergy
Hinterland Harbor
65%inclusion4.33K decks6.66K decks
6%synergy
Yavimaya Coast
55%inclusion3.64K decks6.66K decks
2%synergy
Breeding Pool
55%inclusion3.64K decks6.66K decks
9%synergy
Rejuvenating Springs
55%inclusion3.63K decks6.66K decks
11%synergy
Simic Growth Chamber
50%inclusion3.31K decks6.66K decks
1%synergy
Dreamroot Cascade
49%inclusion3.27K decks6.66K decks
7%synergy
Flooded Grove
44%inclusion2.94K decks6.66K decks
3%synergy
Temple of Mystery
37%inclusion2.49K decks6.66K decks
-1%synergy
Misty Rainforest
37%inclusion2.43K decks6.66K decks
5%synergy
Vineglimmer Snarl
36%inclusion2.39K decks6.66K decks
-3%synergy
Barkchannel Pathway
35%inclusion2.36K decks6.66K decks
15%synergy
Myriad Landscape
27%inclusion1.79K decks6.66K decks
5%synergy
Exotic Orchard
25%inclusion1.67K decks6.66K decks
1%synergy
Evolving Wilds
23%inclusion1.51K decks6.66K decks
-2%synergy
Waterlogged Grove
21%inclusion1.43K decks6.66K decks
1%synergy
Thornwood Falls
20%inclusion1.35K decks6.66K decks
3%synergy
Tangled Islet
20%inclusion1.33K decks6.66K decks
3%synergy
Hedge Maze
19%inclusion1.25K decks6.45K decks
0%synergy
Willowrush Verge
18%inclusion675 decks3.69K decks
2%synergy
Rimewood Falls
17%inclusion1.17K decks6.66K decks
8%synergy
Fabled Passage
17%inclusion1.16K decks6.66K decks
3%synergy
Terramorphic Expanse
16%inclusion1.08K decks6.66K decks
-4%synergy
Overflowing Basin
15%inclusion935 decks6.21K decks
-4%synergy
Tropical Island
15%inclusion991 decks6.66K decks
1%synergy
Botanical Sanctum
13%inclusion872 decks6.66K decks
1%synergy
Bala Ged Recovery
12%inclusion827 decks6.66K decks
2%synergy
Sink into Stupor
11%inclusion635 decks5.64K decks
0%synergy
Simic Guildgate
10%inclusion690 decks6.66K decks
0%synergy
Path of Ancestry
10%inclusion679 decks6.66K decks
-7%synergy
Snow-Covered Island
9.2%inclusion611 decks6.66K decks
2%synergy
Prismatic Vista
9.1%inclusion607 decks6.66K decks
2%synergy
Snow-Covered Forest
9.1%inclusion607 decks6.66K decks
2%synergy
Glasspool Mimic
9.0%inclusion601 decks6.66K decks
5%synergy
Blighted Woodland
8.4%inclusion559 decks6.66K decks
1%synergy
Flooded Strand
7.8%inclusion519 decks6.66K decks
-3%synergy
Windswept Heath
7.7%inclusion513 decks6.66K decks
-3%synergy
Verdant Catacombs
7.5%inclusion502 decks6.66K decks
-2%synergy
Littjara Mirrorlake
7.5%inclusion499 decks6.66K decks
3%synergy
Polluted Delta
7.2%inclusion477 decks6.66K decks
-3%synergy
Sea Gate Restoration
6.9%inclusion462 decks6.66K decks
1%synergy
Scalding Tarn
6.8%inclusion450 decks6.66K decks
-3%synergy
Wooded Foothills
6.3%inclusion421 decks6.66K decks
-3%synergy
Woodland Stream
6.3%inclusion420 decks6.66K decks
1%synergy
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Commander SpellbookFABRECSpellvoid
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