Koma, Cosmos Serpent (Commander) - Sea Creatures

Alternate Names:

The Monstrous SerpentThe Monstrous Serpent

Koma, Cosmos Serpent
Rank #343
123decks
As CommanderAs CardAverage DeckDecks
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Ezra Sassaman
Mar 12, 2026
Ezra Sassaman
Fun Alternatives for the Top Ten Saltiest Commanders
Is your playgroup tired of your Tergrid deck? (Can't blame them.) Then check out this list of replacements for the saltiest commanders.
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Mister Fantastic, Reed Richards
16%inclusion3 decks19 decks
12%synergy
Loki, Lord of Misrule
5.9%inclusion1 decks17 decks
5%synergy
Multiversal Recruitment
5.9%inclusion1 decks17 decks
5%synergy
Shang-Chi, Master of Kung Fu
5.9%inclusion1 decks17 decks
4%synergy
Loki, God of Mischief
5.3%inclusion1 decks19 decks
5%synergy
High Synergy Cards
Whelming Wave
90%inclusion111 decks123 decks
80%synergy
Serpent of Yawning Depths
80%inclusion99 decks123 decks
74%synergy
Koma, World-Eater
77%inclusion73 decks95 decks
65%synergy
Adrix and Nev, Twincasters
72%inclusion89 decks123 decks
63%synergy
Junk Winder
66%inclusion81 decks123 decks
60%synergy
Spawning Kraken
66%inclusion81 decks123 decks
59%synergy
Aesi, Tyrant of Gyre Strait
74%inclusion91 decks123 decks
56%synergy
Arixmethes, Slumbering Isle
69%inclusion85 decks123 decks
56%synergy
Slinn Voda, the Rising Deep
58%inclusion71 decks123 decks
52%synergy
Elemental Bond
57%inclusion70 decks123 decks
51%synergy
Top Cards
Cultivate
82%inclusion101 decks123 decks
36%synergy
Rampant Growth
75%inclusion92 decks123 decks
35%synergy
Kodama's Reach
74%inclusion91 decks123 decks
40%synergy
Counterspell
72%inclusion88 decks123 decks
23%synergy
Growth Spiral
70%inclusion86 decks123 decks
26%synergy
Hullbreaker Horror
55%inclusion68 decks123 decks
38%synergy
Nature's Lore
50%inclusion62 decks123 decks
18%synergy
Farseek
50%inclusion61 decks123 decks
23%synergy
Xolatoyac, the Smiling Flood
48%inclusion59 decks123 decks
41%synergy
Parallel Lives
48%inclusion59 decks123 decks
42%synergy
Game Changers
Cyclonic Rift
33%inclusion40 decks123 decks
9%synergy
Rhystic Study
28%inclusion34 decks123 decks
8%synergy
Worldly Tutor
17%inclusion21 decks123 decks
3%synergy
Fierce Guardianship
16%inclusion20 decks123 decks
0%synergy
Seedborn Muse
14%inclusion17 decks123 decks
-2%synergy
Consecrated Sphinx
11%inclusion14 decks123 decks
3%synergy
Mystical Tutor
7.3%inclusion9 decks123 decks
-1%synergy
Ancient Tomb
6.5%inclusion8 decks123 decks
-2%synergy
Creatures
Scourge of Fleets
43%inclusion53 decks123 decks
36%synergy
Summon: Leviathan
42%inclusion25 decks60 decks
35%synergy
Kiora, Sovereign of the Deep
41%inclusion50 decks123 decks
39%synergy
Nadir Kraken
38%inclusion47 decks123 decks
35%synergy
Spark Double
38%inclusion47 decks123 decks
29%synergy
Tatyova, Benthic Druid
37%inclusion46 decks123 decks
8%synergy
Stormtide Leviathan
36%inclusion44 decks123 decks
30%synergy
Murkfiend Liege
36%inclusion44 decks123 decks
22%synergy
Tromokratis
35%inclusion43 decks123 decks
30%synergy
Birds of Paradise
35%inclusion43 decks123 decks
7%synergy
Stormsurge Kraken
34%inclusion42 decks123 decks
30%synergy
Inkwell Leviathan
33%inclusion40 decks123 decks
28%synergy
Sakura-Tribe Elder
30%inclusion37 decks123 decks
12%synergy
Llanowar Elves
29%inclusion36 decks123 decks
1%synergy
Sword Coast Serpent
29%inclusion36 decks123 decks
28%synergy
Nezahal, Primal Tide
27%inclusion33 decks123 decks
17%synergy
The Unagi of Kyoshi Island
26%inclusion13 decks50 decks
21%synergy
Sakashima of a Thousand Faces
25%inclusion31 decks123 decks
20%synergy
Simic Sky Swallower
25%inclusion31 decks123 decks
22%synergy
Shipbreaker Kraken
24%inclusion30 decks123 decks
22%synergy
Reef Worm
24%inclusion30 decks123 decks
21%synergy
Deep-Sea Kraken
24%inclusion29 decks123 decks
21%synergy
Brinelin, the Moon Kraken
23%inclusion28 decks123 decks
19%synergy
Archetype of Imagination
23%inclusion28 decks123 decks
19%synergy
Craterhoof Behemoth
22%inclusion27 decks123 decks
12%synergy
Monstrosity of the Lake
22%inclusion27 decks123 decks
20%synergy
Cryptic Serpent
21%inclusion26 decks123 decks
21%synergy
Elvish Mystic
21%inclusion26 decks123 decks
-2%synergy
Charix, the Raging Isle
20%inclusion25 decks123 decks
18%synergy
Trench Behemoth
20%inclusion25 decks123 decks
18%synergy
Garruk's Packleader
20%inclusion24 decks123 decks
17%synergy
Reservoir Kraken
20%inclusion24 decks123 decks
18%synergy
Esix, Fractal Bloom
20%inclusion24 decks123 decks
16%synergy
Starwinder
19%inclusion11 decks58 decks
13%synergy
The Watcher in the Water
19%inclusion23 decks123 decks
18%synergy
Benthic Anomaly
19%inclusion23 decks123 decks
17%synergy
Octomancer
18%inclusion22 decks123 decks
13%synergy
Sakashima the Impostor
18%inclusion22 decks123 decks
15%synergy
Lorthos, the Tidemaker
18%inclusion22 decks123 decks
15%synergy
Chameleon, Master of Disguise
18%inclusion10 decks56 decks
16%synergy
Enduring Vitality
17%inclusion20 decks116 decks
9%synergy
Coiling Oracle
17%inclusion21 decks123 decks
5%synergy
Roaming Throne
15%inclusion19 decks123 decks
8%synergy
Ohran Frostfang
15%inclusion19 decks123 decks
12%synergy
Scrapdiver Serpent
15%inclusion18 decks123 decks
14%synergy
Breaching Leviathan
15%inclusion18 decks123 decks
13%synergy
Eternal Witness
14%inclusion17 decks123 decks
-5%synergy
Harbor Serpent
14%inclusion17 decks123 decks
14%synergy
Tolarian Terror
14%inclusion17 decks123 decks
13%synergy
Verazol, the Split Current
14%inclusion17 decks123 decks
14%synergy
Instants
Beast Within
46%inclusion56 decks123 decks
-3%synergy
Negate
43%inclusion53 decks123 decks
18%synergy
Heroic Intervention
41%inclusion51 decks123 decks
11%synergy
Double Major
37%inclusion45 decks123 decks
29%synergy
Simic Charm
36%inclusion44 decks123 decks
29%synergy
Second Harvest
33%inclusion40 decks123 decks
26%synergy
Return of the Wildspeaker
31%inclusion38 decks123 decks
21%synergy
Arcane Denial
29%inclusion36 decks123 decks
7%synergy
Krosan Grip
25%inclusion31 decks123 decks
19%synergy
Planar Genesis
25%inclusion31 decks123 decks
14%synergy
Mana Drain
20%inclusion24 decks123 decks
4%synergy
Pongify
19%inclusion23 decks123 decks
-6%synergy
Eureka Moment
19%inclusion23 decks123 decks
7%synergy
Rapid Hybridization
17%inclusion21 decks123 decks
-10%synergy
An Offer You Can't Refuse
17%inclusion21 decks123 decks
-6%synergy
Aetherize
17%inclusion21 decks123 decks
5%synergy
Brainstorm
15%inclusion18 decks123 decks
-0%synergy
Harrow
15%inclusion18 decks123 decks
3%synergy
Return to Nature
15%inclusion18 decks123 decks
10%synergy
Swan Song
15%inclusion18 decks123 decks
-4%synergy
Reality Shift
13%inclusion16 decks123 decks
-1%synergy
Engulf the Shore
13%inclusion16 decks123 decks
11%synergy
Plasm Capture
11%inclusion13 decks123 decks
8%synergy
Nature's Claim
11%inclusion13 decks123 decks
2%synergy
Snakeskin Veil
10%inclusion12 decks123 decks
3%synergy
Voidslime
10%inclusion12 decks123 decks
5%synergy
Decisive Denial
8.9%inclusion11 decks123 decks
3%synergy
Pact of Negation
8.9%inclusion11 decks123 decks
3%synergy
Tamiyo's Safekeeping
8.1%inclusion10 decks123 decks
3%synergy
Mystic Reflection
7.3%inclusion9 decks123 decks
5%synergy
Entish Restoration
7.3%inclusion9 decks123 decks
-2%synergy
Sink into Stupor
7.3%inclusion9 decks123 decks
-5%synergy
Stubborn Denial
6.5%inclusion8 decks123 decks
4%synergy
Archdruid's Charm
6.5%inclusion8 decks123 decks
1%synergy
Chord of Calling
6.5%inclusion8 decks123 decks
-1%synergy
Collective Resistance
6.5%inclusion8 decks123 decks
3%synergy
Harmonized Crescendo
6.3%inclusion3 decks48 decks
4%synergy
Serpentine Ambush
5.7%inclusion7 decks123 decks
6%synergy
High Tide
5.7%inclusion7 decks123 decks
4%synergy
Sorceries
Three Visits
41%inclusion50 decks123 decks
15%synergy
Irenicus's Vile Duplication
41%inclusion50 decks123 decks
35%synergy
Explore
36%inclusion44 decks123 decks
16%synergy
Skyshroud Claim
30%inclusion37 decks123 decks
21%synergy
Urban Evolution
25%inclusion31 decks123 decks
16%synergy
Overwhelming Stampede
21%inclusion26 decks123 decks
9%synergy
Quantum Misalignment
16%inclusion20 decks123 decks
13%synergy
Migration Path
15%inclusion19 decks123 decks
12%synergy
Rite of Replication
15%inclusion18 decks123 decks
8%synergy
Crush of Tentacles
12%inclusion15 decks123 decks
11%synergy
Shamanic Revelation
12%inclusion15 decks123 decks
7%synergy
Explosive Vegetation
11%inclusion14 decks123 decks
6%synergy
Rishkar's Expertise
11%inclusion13 decks123 decks
1%synergy
Search for Tomorrow
10%inclusion12 decks123 decks
6%synergy
Harmonize
8.9%inclusion11 decks123 decks
4%synergy
Last March of the Ents
8.1%inclusion10 decks123 decks
5%synergy
Ponder
7.3%inclusion9 decks123 decks
0%synergy
Distant Melody
7.3%inclusion9 decks123 decks
4%synergy
Windfall
6.5%inclusion8 decks123 decks
3%synergy
Triumph of the Hordes
6.5%inclusion8 decks123 decks
4%synergy
Sea Gate Restoration
6.5%inclusion8 decks123 decks
1%synergy
Applied Geometry
6.3%inclusion2 decks32 decks
2%synergy
Planar Engineering
6.3%inclusion2 decks32 decks
2%synergy
Shared Roots
6.0%inclusion3 decks50 decks
0%synergy
Curse of the Swine
5.7%inclusion7 decks123 decks
-6%synergy
Doppelgang
5.7%inclusion7 decks123 decks
-1%synergy
Bala Ged Recovery
5.7%inclusion7 decks123 decks
-4%synergy
New Generation's Technique
5.1%inclusion2 decks39 decks
4%synergy
Utility Artifacts
Swiftfoot Boots
41%inclusion51 decks123 decks
17%synergy
Helm of the Host
37%inclusion45 decks123 decks
32%synergy
Lightning Greaves
31%inclusion38 decks123 decks
11%synergy
Kefnet's Monument
23%inclusion28 decks123 decks
22%synergy
Combine Chrysalis
18%inclusion22 decks123 decks
14%synergy
Sapphire Medallion
15%inclusion19 decks123 decks
12%synergy
Emerald Medallion
13%inclusion16 decks123 decks
10%synergy
The Great Henge
10%inclusion12 decks123 decks
0%synergy
Mirror Box
8.9%inclusion11 decks123 decks
6%synergy
Urza's Incubator
8.9%inclusion11 decks123 decks
8%synergy
Monster Manual
8.1%inclusion10 decks123 decks
6%synergy
Bident of Thassa
8.1%inclusion10 decks123 decks
1%synergy
Herald's Horn
6.5%inclusion8 decks123 decks
3%synergy
Idol of Oblivion
6.5%inclusion8 decks123 decks
3%synergy
Coat of Arms
5.7%inclusion7 decks123 decks
4%synergy
Rhonas's Monument
5.7%inclusion7 decks123 decks
5%synergy
Enchantments
Tribute to the World Tree
41%inclusion50 decks123 decks
35%synergy
Garruk's Uprising
37%inclusion46 decks123 decks
20%synergy
Doubling Season
35%inclusion43 decks123 decks
24%synergy
Quest for Ula's Temple
32%inclusion39 decks123 decks
29%synergy
Ominous Seas
28%inclusion34 decks123 decks
24%synergy
Kindred Discovery
24%inclusion30 decks123 decks
15%synergy
Mystic Remora
16%inclusion20 decks123 decks
2%synergy
Unnatural Growth
15%inclusion19 decks123 decks
12%synergy
Kiora Bests the Sea God
15%inclusion19 decks123 decks
14%synergy
Exploration
13%inclusion16 decks123 decks
0%synergy
Impostor Syndrome
13%inclusion7 decks56 decks
11%synergy
Beastmaster Ascension
12%inclusion15 decks123 decks
9%synergy
Defense of the Heart
11%inclusion14 decks123 decks
9%synergy
Burgeoning
11%inclusion13 decks123 decks
4%synergy
Springleaf Parade
10%inclusion5 decks48 decks
8%synergy
Moonlit Meditation
10%inclusion6 decks58 decks
9%synergy
Cryptolith Rite
10%inclusion12 decks123 decks
6%synergy
Sylvan Library
10%inclusion12 decks123 decks
1%synergy
Utopia Sprawl
8.9%inclusion11 decks123 decks
3%synergy
Wilderness Reclamation
8.9%inclusion11 decks123 decks
-0%synergy
Primal Vigor
8.9%inclusion11 decks123 decks
6%synergy
Paradox Haze
8.9%inclusion11 decks123 decks
9%synergy
Growing Rites of Itlimoc
8.9%inclusion11 decks123 decks
3%synergy
Khalni Heart Expedition
8.1%inclusion10 decks123 decks
5%synergy
Propaganda
8.1%inclusion10 decks123 decks
1%synergy
Up the Beanstalk
7.3%inclusion9 decks123 decks
3%synergy
Extravagant Replication
7.3%inclusion9 decks123 decks
5%synergy
Levitation
6.5%inclusion8 decks123 decks
6%synergy
Wild Growth
5.7%inclusion7 decks123 decks
-3%synergy
Reflections of Littjara
5.7%inclusion7 decks123 decks
-2%synergy
Colossal Majesty
5.7%inclusion7 decks123 decks
4%synergy
Battles
Invasion of Segovia
10%inclusion12 decks123 decks
9%synergy
Planeswalkers
Kiora, the Crashing Wave
20%inclusion25 decks123 decks
18%synergy
Oko, Thief of Crowns
8.1%inclusion10 decks123 decks
2%synergy
Kiora, Master of the Depths
7.3%inclusion9 decks123 decks
5%synergy
Kiora, Behemoth Beckoner
6.5%inclusion8 decks123 decks
1%synergy
Utility Lands
Reliquary Tower
65%inclusion80 decks123 decks
15%synergy
Mosswort Bridge
29%inclusion36 decks123 decks
12%synergy
Temple of the False God
25%inclusion31 decks123 decks
9%synergy
Rogue's Passage
20%inclusion24 decks123 decks
-4%synergy
Mystic Sanctuary
18%inclusion22 decks123 decks
6%synergy
Yavimaya, Cradle of Growth
18%inclusion22 decks123 decks
-3%synergy
Evendo, Waking Haven
17%inclusion10 decks59 decks
12%synergy
Boseiju, Who Endures
16%inclusion20 decks123 decks
-6%synergy
Three Tree City
11%inclusion14 decks123 decks
7%synergy
Mistrise Village
11%inclusion7 decks65 decks
-0%synergy
Dark Depths
11%inclusion13 decks123 decks
4%synergy
Castle Garenbrig
11%inclusion13 decks123 decks
6%synergy
Otawara, Soaring City
11%inclusion13 decks123 decks
-8%synergy
Alchemist's Refuge
10%inclusion12 decks123 decks
-9%synergy
Coral Atoll
8.9%inclusion11 decks123 decks
7%synergy
Command Beacon
8.9%inclusion11 decks123 decks
5%synergy
Castle Vantress
8.9%inclusion11 decks123 decks
2%synergy
Restless Vinestalk
6.5%inclusion8 decks123 decks
2%synergy
Lumbering Falls
5.7%inclusion7 decks123 decks
-0%synergy
Mana Artifacts
Sol Ring
93%inclusion114 decks123 decks
13%synergy
Arcane Signet
79%inclusion97 decks123 decks
16%synergy
Simic Signet
41%inclusion50 decks123 decks
11%synergy
Thought Vessel
28%inclusion35 decks123 decks
8%synergy
Talisman of Curiosity
23%inclusion28 decks123 decks
1%synergy
Commander's Sphere
11%inclusion14 decks123 decks
4%synergy
Decanter of Endless Water
11%inclusion14 decks123 decks
7%synergy
Thran Dynamo
8.9%inclusion11 decks123 decks
6%synergy
Lands
Forest
93%inclusion115 decks123 decks
-2%synergy
Island
93%inclusion114 decks123 decks
-3%synergy
Command Tower
85%inclusion105 decks123 decks
0%synergy
Hinterland Harbor
67%inclusion82 decks123 decks
5%synergy
Simic Growth Chamber
62%inclusion76 decks123 decks
16%synergy
Dreamroot Cascade
54%inclusion66 decks123 decks
8%synergy
Breeding Pool
46%inclusion57 decks123 decks
-1%synergy
Temple of Mystery
46%inclusion57 decks123 decks
9%synergy
Rejuvenating Springs
46%inclusion57 decks123 decks
4%synergy
Flooded Grove
45%inclusion55 decks123 decks
1%synergy
Yavimaya Coast
39%inclusion48 decks123 decks
-14%synergy
Vineglimmer Snarl
37%inclusion45 decks123 decks
-3%synergy
Barkchannel Pathway
32%inclusion39 decks123 decks
12%synergy
Thornwood Falls
32%inclusion39 decks123 decks
15%synergy
Myriad Landscape
28%inclusion35 decks123 decks
8%synergy
Evolving Wilds
27%inclusion33 decks123 decks
3%synergy
Tangled Islet
25%inclusion31 decks123 decks
10%synergy
Misty Rainforest
24%inclusion30 decks123 decks
-7%synergy
Willowrush Verge
23%inclusion16 decks71 decks
4%synergy
Sodden Verdure
19%inclusion9 decks48 decks
-3%synergy
Terramorphic Expanse
18%inclusion22 decks123 decks
-2%synergy
Exotic Orchard
17%inclusion21 decks123 decks
-8%synergy
Rain-Slicked Copse
17%inclusion8 decks48 decks
7%synergy
Waterlogged Grove
16%inclusion20 decks123 decks
-3%synergy
Overflowing Basin
15%inclusion19 decks123 decks
-6%synergy
Hedge Maze
15%inclusion19 decks123 decks
-4%synergy
Rimewood Falls
15%inclusion18 decks123 decks
7%synergy
Path of Ancestry
13%inclusion16 decks123 decks
-5%synergy
Snow-Covered Forest
11%inclusion14 decks123 decks
6%synergy
Fabled Passage
11%inclusion13 decks123 decks
-7%synergy
Snow-Covered Island
11%inclusion13 decks123 decks
5%synergy
Tropical Island
11%inclusion13 decks123 decks
-4%synergy
Blighted Woodland
10%inclusion12 decks123 decks
3%synergy
Botanical Sanctum
10%inclusion12 decks123 decks
-3%synergy
Woodland Stream
10%inclusion12 decks123 decks
5%synergy
Simic Guildgate
10%inclusion12 decks123 decks
1%synergy
Littjara Mirrorlake
8.9%inclusion11 decks123 decks
6%synergy
Glasspool Mimic
8.9%inclusion11 decks123 decks
5%synergy
Sink into Stupor
7.3%inclusion9 decks123 decks
-5%synergy
Sea Gate Restoration
6.5%inclusion8 decks123 decks
1%synergy
Lush Oasis
6.5%inclusion8 decks123 decks
1%synergy
Bala Ged Recovery
5.7%inclusion7 decks123 decks
-4%synergy
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