Koma, Cosmos Serpent (Commander)

Alternate Names:

The Monstrous SerpentThe Monstrous Serpent

Koma, Cosmos Serpent
Rank #308
6,746decks
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.
Deck Filters
Cardsphere
Archidekt
Commander Spellbook
Moxfield
Scryfall
New Cards
High Synergy Cards
Top Cards
Game Changers
Creatures
Instants
Sorceries
Utility Artifacts
Enchantments
Planeswalkers
Utility Lands
Mana Artifacts
Lands
Back to Top
Sodden Verdure
6.6%inclusion23 decks349 decks
2%synergy
Tam, Mindful First-Year
3.6%inclusion12 decks335 decks
3%synergy
Harmonized Crescendo
3.6%inclusion13 decks366 decks
2%synergy
Mirrorform
2.5%inclusion9 decks366 decks
1%synergy
Springleaf Parade
2.3%inclusion8 decks349 decks
1%synergy
High Synergy Cards
Adrix and Nev, Twincasters
76%inclusion5.13K decks6.75K decks
68%synergy
Elemental Bond
68%inclusion4.57K decks6.75K decks
62%synergy
Whelming Wave
73%inclusion4.91K decks6.75K decks
62%synergy
Spark Double
63%inclusion4.27K decks6.75K decks
54%synergy
Koma, World-Eater
65%inclusion3.28K decks5.03K decks
52%synergy
Junk Winder
57%inclusion3.85K decks6.75K decks
51%synergy
Parallel Lives
55%inclusion3.71K decks6.75K decks
49%synergy
Serpent of Yawning Depths
54%inclusion3.67K decks6.75K decks
48%synergy
Irenicus's Vile Duplication
52%inclusion3.53K decks6.75K decks
46%synergy
Sakashima of a Thousand Faces
50%inclusion3.35K decks6.75K decks
45%synergy
Top Cards
Cultivate
78%inclusion5.26K decks6.75K decks
31%synergy
Counterspell
74%inclusion4.98K decks6.75K decks
24%synergy
Kodama's Reach
70%inclusion4.74K decks6.75K decks
34%synergy
Rampant Growth
69%inclusion4.64K decks6.75K decks
28%synergy
Beast Within
61%inclusion4.13K decks6.75K decks
12%synergy
Nature's Lore
58%inclusion3.92K decks6.75K decks
28%synergy
Growth Spiral
56%inclusion3.79K decks6.75K decks
12%synergy
Farseek
54%inclusion3.65K decks6.75K decks
29%synergy
Heroic Intervention
54%inclusion3.61K decks6.75K decks
23%synergy
Aesi, Tyrant of Gyre Strait
53%inclusion3.58K decks6.75K decks
36%synergy
Game Changers
Cyclonic Rift
44%inclusion2.96K decks6.75K decks
18%synergy
Rhystic Study
40%inclusion2.67K decks6.75K decks
18%synergy
Fierce Guardianship
32%inclusion2.15K decks6.75K decks
15%synergy
Seedborn Muse
29%inclusion1.93K decks6.75K decks
13%synergy
Worldly Tutor
22%inclusion1.51K decks6.75K decks
7%synergy
Consecrated Sphinx
20%inclusion1.32K decks6.75K decks
11%synergy
Mystical Tutor
16%inclusion1.09K decks6.75K decks
7%synergy
Force of Will
14%inclusion923 decks6.75K decks
4%synergy
Ancient Tomb
13%inclusion873 decks6.75K decks
4%synergy
Gaea's Cradle
10%inclusion687 decks6.75K decks
3%synergy
Creatures
Llanowar Elves
50%inclusion3.34K decks6.75K decks
21%synergy
Spawning Kraken
47%inclusion3.17K decks6.75K decks
40%synergy
Birds of Paradise
46%inclusion3.10K decks6.75K decks
18%synergy
Arixmethes, Slumbering Isle
43%inclusion2.89K decks6.75K decks
29%synergy
Sakura-Tribe Elder
40%inclusion2.67K decks6.75K decks
20%synergy
Elvish Mystic
39%inclusion2.61K decks6.75K decks
15%synergy
Sakashima the Impostor
39%inclusion2.60K decks6.75K decks
36%synergy
Tatyova, Benthic Druid
38%inclusion2.56K decks6.75K decks
7%synergy
Murkfiend Liege
36%inclusion2.40K decks6.75K decks
21%synergy
Craterhoof Behemoth
33%inclusion2.22K decks6.75K decks
23%synergy
Garruk's Packleader
33%inclusion2.22K decks6.75K decks
31%synergy
Hullbreaker Horror
30%inclusion2.04K decks6.75K decks
12%synergy
Ohran Frostfang
29%inclusion1.98K decks6.75K decks
26%synergy
Summon: Leviathan
29%inclusion867 decks2.96K decks
22%synergy
Eternal Witness
29%inclusion1.94K decks6.75K decks
8%synergy
Fyndhorn Elves
28%inclusion1.87K decks6.75K decks
12%synergy
Roaming Throne
28%inclusion1.86K decks6.75K decks
20%synergy
Enduring Vitality
25%inclusion1.38K decks5.46K decks
18%synergy
Slinn Voda, the Rising Deep
25%inclusion1.70K decks6.75K decks
19%synergy
Octomancer
25%inclusion1.41K decks5.74K decks
20%synergy
Esix, Fractal Bloom
24%inclusion1.64K decks6.75K decks
20%synergy
Archetype of Imagination
23%inclusion1.52K decks6.75K decks
18%synergy
Coiling Oracle
21%inclusion1.40K decks6.75K decks
8%synergy
Fanatic of Rhonas
20%inclusion1.18K decks6.03K decks
14%synergy
The Unagi of Kyoshi Island
17%inclusion204 decks1.23K decks
11%synergy
Scourge of Fleets
16%inclusion1.09K decks6.75K decks
8%synergy
Xolatoyac, the Smiling Flood
14%inclusion974 decks6.75K decks
7%synergy
Curiosity Crafter
14%inclusion972 decks6.75K decks
11%synergy
Starwinder
14%inclusion332 decks2.32K decks
8%synergy
Scute Swarm
14%inclusion965 decks6.75K decks
-7%synergy
Reclamation Sage
14%inclusion963 decks6.75K decks
0%synergy
Nezahal, Primal Tide
14%inclusion961 decks6.75K decks
3%synergy
Chameleon, Master of Disguise
14%inclusion250 decks1.82K decks
11%synergy
Delighted Halfling
13%inclusion902 decks6.75K decks
2%synergy
Nadir Kraken
13%inclusion893 decks6.75K decks
9%synergy
Toski, Bearer of Secrets
13%inclusion859 decks6.75K decks
9%synergy
Enduring Curiosity
13%inclusion700 decks5.51K decks
9%synergy
Avenger of Zendikar
12%inclusion843 decks6.75K decks
-5%synergy
Azusa, Lost but Seeking
12%inclusion822 decks6.75K decks
-2%synergy
Stormtide Leviathan
12%inclusion794 decks6.75K decks
6%synergy
Troyan, Gutsy Explorer
11%inclusion772 decks6.75K decks
8%synergy
Rampaging Baloths
11%inclusion744 decks6.75K decks
-6%synergy
Saryth, the Viper's Fang
11%inclusion725 decks6.75K decks
9%synergy
Uro, Titan of Nature's Wrath
10%inclusion664 decks6.75K decks
0%synergy
Lotus Cobra
10%inclusion660 decks6.75K decks
-4%synergy
Progenitor Mimic
10%inclusion654 decks6.75K decks
5%synergy
Circle of Dreams Druid
9.4%inclusion633 decks6.75K decks
7%synergy
Clever Impersonator
9.2%inclusion618 decks6.75K decks
4%synergy
Inga and Esika
9.0%inclusion604 decks6.75K decks
6%synergy
Jaheira, Friend of the Forest
8.9%inclusion602 decks6.75K decks
5%synergy
Instants
Negate
47%inclusion3.15K decks6.75K decks
21%synergy
Double Major
47%inclusion3.15K decks6.75K decks
38%synergy
Pongify
40%inclusion2.68K decks6.75K decks
15%synergy
Arcane Denial
37%inclusion2.52K decks6.75K decks
15%synergy
An Offer You Can't Refuse
37%inclusion2.50K decks6.75K decks
14%synergy
Second Harvest
37%inclusion2.49K decks6.75K decks
31%synergy
Mana Drain
35%inclusion2.35K decks6.75K decks
19%synergy
Swan Song
32%inclusion2.16K decks6.75K decks
13%synergy
Return of the Wildspeaker
31%inclusion2.12K decks6.75K decks
21%synergy
Rapid Hybridization
31%inclusion2.09K decks6.75K decks
5%synergy
Krosan Grip
23%inclusion1.53K decks6.75K decks
15%synergy
Simic Charm
18%inclusion1.25K decks6.75K decks
11%synergy
Reality Shift
18%inclusion1.21K decks6.75K decks
3%synergy
Nature's Claim
16%inclusion1.11K decks6.75K decks
7%synergy
Brainstorm
16%inclusion1.07K decks6.75K decks
1%synergy
Planar Genesis
15%inclusion905 decks6.01K decks
4%synergy
Harrow
14%inclusion975 decks6.75K decks
3%synergy
Tamiyo's Safekeeping
13%inclusion855 decks6.75K decks
7%synergy
Voidslime
12%inclusion842 decks6.75K decks
7%synergy
Aetherize
12%inclusion836 decks6.75K decks
0%synergy
Return to Nature
12%inclusion827 decks6.75K decks
7%synergy
Eureka Moment
12%inclusion804 decks6.75K decks
1%synergy
Snakeskin Veil
12%inclusion786 decks6.75K decks
6%synergy
Sink into Stupor
11%inclusion683 decks6.04K decks
0%synergy
Force of Negation
11%inclusion753 decks6.75K decks
3%synergy
Plasm Capture
11%inclusion735 decks6.75K decks
8%synergy
Mystic Reflection
11%inclusion715 decks6.75K decks
8%synergy
Chord of Calling
10%inclusion675 decks6.75K decks
2%synergy
Pact of Negation
8.8%inclusion591 decks6.75K decks
1%synergy
Entish Restoration
8.2%inclusion555 decks6.75K decks
-1%synergy
Archdruid's Charm
7.9%inclusion531 decks6.75K decks
2%synergy
Stubborn Denial
7.9%inclusion530 decks6.75K decks
5%synergy
Perplexing Test
7.8%inclusion524 decks6.75K decks
3%synergy
Resculpt
7.5%inclusion507 decks6.75K decks
2%synergy
Disallow
7.4%inclusion499 decks6.75K decks
6%synergy
Decisive Denial
7.4%inclusion498 decks6.75K decks
2%synergy
Noxious Revival
7.4%inclusion496 decks6.75K decks
1%synergy
Sublime Epiphany
7.0%inclusion475 decks6.75K decks
5%synergy
Tyvar's Stand
6.2%inclusion421 decks6.75K decks
4%synergy
Narset's Reversal
6.2%inclusion420 decks6.75K decks
5%synergy
Strix Serenade
6.1%inclusion369 decks6.04K decks
2%synergy
Force of Vigor
5.9%inclusion401 decks6.75K decks
1%synergy
Collective Resistance
5.5%inclusion333 decks6.04K decks
2%synergy
Lazotep Plating
5.5%inclusion368 decks6.75K decks
5%synergy
Auroral Procession
5.4%inclusion191 decks3.52K decks
2%synergy
Joint Exploration
5.3%inclusion358 decks6.75K decks
0%synergy
Sorceries
Three Visits
49%inclusion3.28K decks6.75K decks
25%synergy
Skyshroud Claim
38%inclusion2.58K decks6.75K decks
29%synergy
Explore
28%inclusion1.89K decks6.75K decks
8%synergy
Quantum Misalignment
27%inclusion1.84K decks6.75K decks
24%synergy
Overwhelming Stampede
24%inclusion1.63K decks6.75K decks
12%synergy
Rite of Replication
17%inclusion1.16K decks6.75K decks
10%synergy
Shamanic Revelation
16%inclusion1.06K decks6.75K decks
11%synergy
Migration Path
15%inclusion1.02K decks6.75K decks
12%synergy
Urban Evolution
14%inclusion951 decks6.75K decks
5%synergy
Rishkar's Expertise
14%inclusion944 decks6.75K decks
6%synergy
Finale of Devastation
13%inclusion847 decks6.75K decks
1%synergy
Triumph of the Hordes
12%inclusion836 decks6.75K decks
9%synergy
Distant Melody
12%inclusion823 decks6.75K decks
9%synergy
Bala Ged Recovery
12%inclusion817 decks6.75K decks
2%synergy
Explosive Vegetation
12%inclusion816 decks6.75K decks
6%synergy
Harmonize
10%inclusion706 decks6.75K decks
5%synergy
Shared Roots
9.1%inclusion110 decks1.21K decks
5%synergy
Curse of the Swine
8.6%inclusion583 decks6.75K decks
-2%synergy
Ponder
8.3%inclusion559 decks6.75K decks
1%synergy
Search for Tomorrow
8.3%inclusion559 decks6.75K decks
4%synergy
Regrowth
7.5%inclusion503 decks6.75K decks
4%synergy
Doppelgang
7.2%inclusion487 decks6.75K decks
1%synergy
Sea Gate Restoration
7.1%inclusion476 decks6.75K decks
2%synergy
Ravenform
6.7%inclusion451 decks6.75K decks
2%synergy
Green Sun's Zenith
6.7%inclusion449 decks6.75K decks
-2%synergy
Windfall
6.1%inclusion413 decks6.75K decks
2%synergy
Preposterous Proportions
5.9%inclusion296 decks4.99K decks
5%synergy
Ezuri's Predation
5.8%inclusion388 decks6.75K decks
-2%synergy
Preordain
5.4%inclusion366 decks6.75K decks
-3%synergy
Ember Island Production
5.3%inclusion63 decks1.19K decks
4%synergy
Broken Bond
5.2%inclusion351 decks6.75K decks
0%synergy
Quasiduplicate
5.1%inclusion345 decks6.75K decks
2%synergy
Utility Artifacts
Swiftfoot Boots
44%inclusion2.98K decks6.75K decks
19%synergy
Helm of the Host
43%inclusion2.88K decks6.75K decks
37%synergy
Lightning Greaves
41%inclusion2.78K decks6.75K decks
19%synergy
Combine Chrysalis
26%inclusion1.74K decks6.75K decks
22%synergy
Mirror Box
17%inclusion1.17K decks6.75K decks
14%synergy
Emerald Medallion
13%inclusion897 decks6.75K decks
10%synergy
The Great Henge
12%inclusion796 decks6.75K decks
3%synergy
Idol of Oblivion
11%inclusion754 decks6.75K decks
8%synergy
Sapphire Medallion
11%inclusion714 decks6.75K decks
7%synergy
Eldrazi Monument
10%inclusion656 decks6.75K decks
9%synergy
Bident of Thassa
9.3%inclusion630 decks6.75K decks
2%synergy
Coat of Arms
7.4%inclusion500 decks6.75K decks
6%synergy
The One Ring
7.1%inclusion478 decks6.75K decks
-1%synergy
Banner of Kinship
5.7%inclusion284 decks5.01K decks
4%synergy
Enchantments
Doubling Season
49%inclusion3.32K decks6.75K decks
40%synergy
Tribute to the World Tree
44%inclusion2.96K decks6.75K decks
38%synergy
Kindred Discovery
31%inclusion2.11K decks6.75K decks
22%synergy
Mystic Remora
27%inclusion1.85K decks6.75K decks
12%synergy
Primal Vigor
19%inclusion1.26K decks6.75K decks
16%synergy
Garruk's Uprising
19%inclusion1.25K decks6.75K decks
2%synergy
Growing Rites of Itlimoc
18%inclusion1.18K decks6.75K decks
12%synergy
Wild Growth
16%inclusion1.05K decks6.75K decks
7%synergy
Sylvan Library
15%inclusion1.01K decks6.75K decks
6%synergy
Beastmaster Ascension
15%inclusion1K decks6.75K decks
12%synergy
Cryptolith Rite
15%inclusion997 decks6.75K decks
12%synergy
Exploration
15%inclusion982 decks6.75K decks
1%synergy
Utopia Sprawl
13%inclusion890 decks6.75K decks
7%synergy
Paradox Haze
12%inclusion806 decks6.75K decks
12%synergy
Propaganda
11%inclusion767 decks6.75K decks
5%synergy
Wilderness Reclamation
10%inclusion680 decks6.75K decks
1%synergy
Unnatural Growth
10%inclusion653 decks6.75K decks
6%synergy
Impostor Syndrome
10%inclusion176 decks1.83K decks
8%synergy
Defense of the Heart
8.9%inclusion601 decks6.75K decks
7%synergy
Moonlit Meditation
8.2%inclusion191 decks2.33K decks
7%synergy
Extravagant Replication
8.1%inclusion545 decks6.75K decks
6%synergy
Burgeoning
7.8%inclusion523 decks6.75K decks
1%synergy
Imprisoned in the Moon
7.7%inclusion517 decks6.75K decks
4%synergy
Asceticism
7.1%inclusion478 decks6.75K decks
4%synergy
Kenrith's Transformation
7.0%inclusion473 decks6.75K decks
3%synergy
Ominous Seas
6.6%inclusion444 decks6.75K decks
2%synergy
Verity Circle
5.4%inclusion365 decks6.75K decks
5%synergy
Dismiss into Dream
5.1%inclusion346 decks6.75K decks
5%synergy
Planeswalkers
Oko, Thief of Crowns
21%inclusion1.42K decks6.75K decks
14%synergy
Kiora, the Crashing Wave
7.9%inclusion530 decks6.75K decks
5%synergy
Utility Lands
Reliquary Tower
61%inclusion4.10K decks6.75K decks
11%synergy
Boseiju, Who Endures
26%inclusion1.73K decks6.75K decks
3%synergy
Yavimaya, Cradle of Growth
25%inclusion1.66K decks6.75K decks
2%synergy
Otawara, Soaring City
21%inclusion1.41K decks6.75K decks
2%synergy
Temple of the False God
20%inclusion1.34K decks6.75K decks
4%synergy
Command Beacon
18%inclusion1.22K decks6.75K decks
14%synergy
Mosswort Bridge
17%inclusion1.12K decks6.75K decks
-1%synergy
Three Tree City
16%inclusion939 decks5.79K decks
11%synergy
Rogue's Passage
15%inclusion1.01K decks6.75K decks
-7%synergy
Mystic Sanctuary
14%inclusion955 decks6.75K decks
2%synergy
Castle Garenbrig
13%inclusion885 decks6.75K decks
9%synergy
Mistrise Village
13%inclusion454 decks3.52K decks
2%synergy
Alchemist's Refuge
12%inclusion824 decks6.75K decks
-5%synergy
Evendo, Waking Haven
12%inclusion283 decks2.37K decks
7%synergy
Castle Vantress
5.7%inclusion387 decks6.75K decks
-1%synergy
Restless Vinestalk
5.5%inclusion369 decks6.75K decks
0%synergy
Lumbering Falls
5.1%inclusion344 decks6.75K decks
-2%synergy
Mana Artifacts
Sol Ring
92%inclusion6.18K decks6.75K decks
11%synergy
Arcane Signet
78%inclusion5.25K decks6.75K decks
15%synergy
Simic Signet
44%inclusion2.94K decks6.75K decks
12%synergy
Thought Vessel
39%inclusion2.63K decks6.75K decks
19%synergy
Talisman of Curiosity
33%inclusion2.25K decks6.75K decks
12%synergy
Commander's Sphere
11%inclusion764 decks6.75K decks
3%synergy
Fellwar Stone
11%inclusion762 decks6.75K decks
2%synergy
Decanter of Endless Water
7.2%inclusion487 decks6.75K decks
2%synergy
Mana Vault
7.0%inclusion471 decks6.75K decks
1%synergy
Thran Dynamo
6.8%inclusion461 decks6.75K decks
4%synergy
Mind Stone
5.9%inclusion401 decks6.75K decks
2%synergy
Lands
Forest
94%inclusion6.37K decks6.75K decks
-1%synergy
Island
94%inclusion6.37K decks6.75K decks
-1%synergy
Command Tower
87%inclusion5.84K decks6.75K decks
1%synergy
Hinterland Harbor
66%inclusion4.44K decks6.75K decks
6%synergy
Breeding Pool
56%inclusion3.75K decks6.75K decks
9%synergy
Yavimaya Coast
55%inclusion3.70K decks6.75K decks
2%synergy
Rejuvenating Springs
54%inclusion3.67K decks6.75K decks
11%synergy
Dreamroot Cascade
50%inclusion3.38K decks6.75K decks
8%synergy
Simic Growth Chamber
49%inclusion3.32K decks6.75K decks
1%synergy
Flooded Grove
45%inclusion3.02K decks6.75K decks
4%synergy
Temple of Mystery
37%inclusion2.51K decks6.75K decks
-1%synergy
Misty Rainforest
36%inclusion2.46K decks6.75K decks
5%synergy
Vineglimmer Snarl
36%inclusion2.44K decks6.75K decks
-2%synergy
Barkchannel Pathway
35%inclusion2.36K decks6.75K decks
15%synergy
Myriad Landscape
26%inclusion1.76K decks6.75K decks
4%synergy
Exotic Orchard
25%inclusion1.70K decks6.75K decks
1%synergy
Evolving Wilds
23%inclusion1.52K decks6.75K decks
-3%synergy
Waterlogged Grove
22%inclusion1.46K decks6.75K decks
1%synergy
Thornwood Falls
20%inclusion1.35K decks6.75K decks
2%synergy
Hedge Maze
20%inclusion1.34K decks6.75K decks
0%synergy
Tangled Islet
20%inclusion1.32K decks6.75K decks
3%synergy
Willowrush Verge
19%inclusion801 decks4.21K decks
2%synergy
Fabled Passage
17%inclusion1.16K decks6.75K decks
3%synergy
Rimewood Falls
17%inclusion1.15K decks6.75K decks
8%synergy
Terramorphic Expanse
16%inclusion1.06K decks6.75K decks
-4%synergy
Overflowing Basin
15%inclusion992 decks6.57K decks
-4%synergy
Tropical Island
15%inclusion1.02K decks6.75K decks
1%synergy
Botanical Sanctum
13%inclusion903 decks6.75K decks
1%synergy
Bala Ged Recovery
12%inclusion817 decks6.75K decks
2%synergy
Sink into Stupor
11%inclusion683 decks6.04K decks
0%synergy
Path of Ancestry
10%inclusion686 decks6.75K decks
-7%synergy
Simic Guildgate
10%inclusion681 decks6.75K decks
0%synergy
Snow-Covered Forest
9.3%inclusion629 decks6.75K decks
3%synergy
Snow-Covered Island
9.3%inclusion628 decks6.75K decks
3%synergy
Prismatic Vista
9.1%inclusion616 decks6.75K decks
2%synergy
Glasspool Mimic
8.7%inclusion585 decks6.75K decks
4%synergy
Blighted Woodland
8.1%inclusion544 decks6.75K decks
1%synergy
Windswept Heath
7.9%inclusion533 decks6.75K decks
-3%synergy
Flooded Strand
7.9%inclusion533 decks6.75K decks
-3%synergy
Verdant Catacombs
7.5%inclusion509 decks6.75K decks
-2%synergy
Polluted Delta
7.2%inclusion488 decks6.75K decks
-3%synergy
Littjara Mirrorlake
7.2%inclusion484 decks6.75K decks
3%synergy
Sea Gate Restoration
7.1%inclusion476 decks6.75K decks
2%synergy
Scalding Tarn
6.8%inclusion459 decks6.75K decks
-3%synergy
Wooded Foothills
6.4%inclusion434 decks6.75K decks
-3%synergy
Woodland Stream
6.0%inclusion403 decks6.75K decks
1%synergy
About UsContactPrivacy PolicyTerms of Service
Space Cow MediaArchidektCardsphereCommander SpellbookFABRECSpellvoid
Space Cow MediaArchidektCommander's Herald
Commander SpellbookFABRECSpellvoid
EDHREC is unofficial Fan Content permitted under the Fan Content Policy. Not approved/endorsed by Wizards. Portions of the materials used are property of Wizards of the Coast. ©Wizards of the Coast LLC.
next@15 test