Koma, Cosmos Serpent (Commander) - Sea Creatures

Alternate Names:

The Monstrous SerpentThe Monstrous Serpent

Koma, Cosmos Serpent
Rank #341
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
17%inclusion4 decks24 decks
13%synergy
Loki, Lord of Misrule
8.7%inclusion2 decks23 decks
8%synergy
Multiversal Recruitment
8.7%inclusion2 decks23 decks
8%synergy
Pym Technologies
4.3%inclusion1 decks23 decks
3%synergy
Shang-Chi, Master of Kung Fu
4.3%inclusion1 decks23 decks
2%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
78%inclusion76 decks98 decks
65%synergy
Adrix and Nev, Twincasters
73%inclusion90 decks123 decks
64%synergy
Junk Winder
67%inclusion82 decks123 decks
61%synergy
Spawning Kraken
66%inclusion81 decks123 decks
59%synergy
Aesi, Tyrant of Gyre Strait
76%inclusion93 decks123 decks
58%synergy
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69%inclusion85 decks123 decks
56%synergy
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56%inclusion69 decks123 decks
50%synergy
Elemental Bond
54%inclusion67 decks123 decks
49%synergy
Top Cards
Cultivate
81%inclusion100 decks123 decks
36%synergy
Rampant Growth
76%inclusion93 decks123 decks
36%synergy
Kodama's Reach
75%inclusion92 decks123 decks
41%synergy
Counterspell
72%inclusion88 decks123 decks
23%synergy
Growth Spiral
71%inclusion87 decks123 decks
26%synergy
Hullbreaker Horror
54%inclusion67 decks123 decks
37%synergy
Nature's Lore
50%inclusion61 decks123 decks
17%synergy
Farseek
48%inclusion59 decks123 decks
21%synergy
Parallel Lives
47%inclusion58 decks123 decks
41%synergy
Xolatoyac, the Smiling Flood
46%inclusion56 decks123 decks
39%synergy
Game Changers
Cyclonic Rift
33%inclusion40 decks123 decks
10%synergy
Rhystic Study
27%inclusion33 decks123 decks
7%synergy
Worldly Tutor
18%inclusion22 decks123 decks
4%synergy
Fierce Guardianship
16%inclusion20 decks123 decks
0%synergy
Seedborn Muse
15%inclusion18 decks123 decks
-1%synergy
Consecrated Sphinx
11%inclusion14 decks123 decks
3%synergy
Mystical Tutor
8.1%inclusion10 decks123 decks
-0%synergy
Force of Will
6.5%inclusion8 decks123 decks
-3%synergy
Creatures
Summon: Leviathan
44%inclusion28 decks63 decks
38%synergy
Scourge of Fleets
41%inclusion50 decks123 decks
33%synergy
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40%inclusion49 decks123 decks
38%synergy
Spark Double
38%inclusion47 decks123 decks
29%synergy
Tatyova, Benthic Druid
37%inclusion46 decks123 decks
8%synergy
Murkfiend Liege
37%inclusion45 decks123 decks
23%synergy
Nadir Kraken
36%inclusion44 decks123 decks
32%synergy
Birds of Paradise
34%inclusion42 decks123 decks
6%synergy
Tromokratis
34%inclusion42 decks123 decks
29%synergy
The Unagi of Kyoshi Island
34%inclusion18 decks53 decks
29%synergy
Stormtide Leviathan
33%inclusion41 decks123 decks
28%synergy
Stormsurge Kraken
33%inclusion40 decks123 decks
28%synergy
Inkwell Leviathan
31%inclusion38 decks123 decks
27%synergy
Llanowar Elves
31%inclusion38 decks123 decks
3%synergy
Sakura-Tribe Elder
28%inclusion35 decks123 decks
10%synergy
Sword Coast Serpent
28%inclusion34 decks123 decks
26%synergy
Sakashima of a Thousand Faces
26%inclusion32 decks123 decks
21%synergy
Nezahal, Primal Tide
24%inclusion30 decks123 decks
14%synergy
Simic Sky Swallower
24%inclusion29 decks123 decks
20%synergy
Archetype of Imagination
24%inclusion29 decks123 decks
19%synergy
Craterhoof Behemoth
24%inclusion29 decks123 decks
13%synergy
Shipbreaker Kraken
22%inclusion27 decks123 decks
19%synergy
Elvish Mystic
22%inclusion27 decks123 decks
-1%synergy
Reef Worm
22%inclusion27 decks123 decks
19%synergy
Deep-Sea Kraken
22%inclusion27 decks123 decks
19%synergy
Cryptic Serpent
21%inclusion26 decks123 decks
21%synergy
Brinelin, the Moon Kraken
21%inclusion26 decks123 decks
17%synergy
Monstrosity of the Lake
20%inclusion25 decks123 decks
18%synergy
Esix, Fractal Bloom
20%inclusion25 decks123 decks
17%synergy
Octomancer
20%inclusion25 decks123 decks
16%synergy
Starwinder
20%inclusion12 decks61 decks
14%synergy
Charix, the Raging Isle
20%inclusion24 decks123 decks
17%synergy
Garruk's Packleader
19%inclusion23 decks123 decks
17%synergy
Benthic Anomaly
18%inclusion22 decks123 decks
16%synergy
Reservoir Kraken
18%inclusion22 decks123 decks
17%synergy
Trench Behemoth
18%inclusion22 decks123 decks
16%synergy
Enduring Vitality
18%inclusion21 decks119 decks
10%synergy
Roaming Throne
17%inclusion21 decks123 decks
10%synergy
The Watcher in the Water
17%inclusion21 decks123 decks
16%synergy
Sakashima the Impostor
17%inclusion21 decks123 decks
15%synergy
Coiling Oracle
17%inclusion21 decks123 decks
5%synergy
Ohran Frostfang
16%inclusion20 decks123 decks
12%synergy
Lorthos, the Tidemaker
15%inclusion19 decks123 decks
12%synergy
Chameleon, Master of Disguise
15%inclusion9 decks59 decks
13%synergy
Scrapdiver Serpent
15%inclusion18 decks123 decks
14%synergy
Verazol, the Split Current
15%inclusion18 decks123 decks
14%synergy
Tolarian Terror
15%inclusion18 decks123 decks
14%synergy
Harbor Serpent
14%inclusion17 decks123 decks
14%synergy
Breaching Leviathan
13%inclusion16 decks123 decks
11%synergy
Eternal Witness
13%inclusion16 decks123 decks
-5%synergy
Instants
Beast Within
45%inclusion55 decks123 decks
-4%synergy
Negate
44%inclusion54 decks123 decks
19%synergy
Heroic Intervention
41%inclusion51 decks123 decks
11%synergy
Double Major
37%inclusion46 decks123 decks
29%synergy
Second Harvest
34%inclusion42 decks123 decks
28%synergy
Simic Charm
34%inclusion42 decks123 decks
27%synergy
Return of the Wildspeaker
32%inclusion39 decks123 decks
22%synergy
Arcane Denial
28%inclusion34 decks123 decks
6%synergy
Planar Genesis
25%inclusion31 decks123 decks
14%synergy
Krosan Grip
23%inclusion28 decks123 decks
16%synergy
Pongify
20%inclusion24 decks123 decks
-5%synergy
Mana Drain
20%inclusion24 decks123 decks
4%synergy
Eureka Moment
19%inclusion23 decks123 decks
7%synergy
Rapid Hybridization
18%inclusion22 decks123 decks
-9%synergy
An Offer You Can't Refuse
18%inclusion22 decks123 decks
-6%synergy
Aetherize
16%inclusion20 decks123 decks
4%synergy
Return to Nature
15%inclusion18 decks123 decks
10%synergy
Harrow
14%inclusion17 decks123 decks
2%synergy
Swan Song
14%inclusion17 decks123 decks
-5%synergy
Reality Shift
13%inclusion16 decks123 decks
-1%synergy
Brainstorm
12%inclusion15 decks123 decks
-3%synergy
Plasm Capture
11%inclusion14 decks123 decks
8%synergy
Nature's Claim
11%inclusion14 decks123 decks
3%synergy
Engulf the Shore
11%inclusion14 decks123 decks
10%synergy
Snakeskin Veil
11%inclusion13 decks123 decks
4%synergy
Voidslime
10%inclusion12 decks123 decks
5%synergy
Tamiyo's Safekeeping
8.1%inclusion10 decks123 decks
3%synergy
Pact of Negation
8.1%inclusion10 decks123 decks
2%synergy
Harmonized Crescendo
7.8%inclusion4 decks51 decks
5%synergy
Decisive Denial
7.3%inclusion9 decks123 decks
1%synergy
Archdruid's Charm
7.3%inclusion9 decks123 decks
2%synergy
Mystic Reflection
7.3%inclusion9 decks123 decks
5%synergy
Chord of Calling
7.3%inclusion9 decks123 decks
-0%synergy
Entish Restoration
6.5%inclusion8 decks123 decks
-2%synergy
Sink into Stupor
6.5%inclusion8 decks123 decks
-6%synergy
Stubborn Denial
5.7%inclusion7 decks123 decks
3%synergy
Serpentine Ambush
5.7%inclusion7 decks123 decks
6%synergy
Collective Resistance
5.7%inclusion7 decks123 decks
2%synergy
High Tide
5.7%inclusion7 decks123 decks
4%synergy
Sorceries
Three Visits
41%inclusion50 decks123 decks
15%synergy
Irenicus's Vile Duplication
40%inclusion49 decks123 decks
34%synergy
Explore
37%inclusion45 decks123 decks
16%synergy
Skyshroud Claim
30%inclusion37 decks123 decks
21%synergy
Urban Evolution
24%inclusion29 decks123 decks
15%synergy
Overwhelming Stampede
22%inclusion27 decks123 decks
9%synergy
Quantum Misalignment
17%inclusion21 decks123 decks
14%synergy
Migration Path
16%inclusion20 decks123 decks
13%synergy
Rite of Replication
15%inclusion19 decks123 decks
8%synergy
Shamanic Revelation
12%inclusion15 decks123 decks
7%synergy
Crush of Tentacles
11%inclusion14 decks123 decks
10%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
Last March of the Ents
8.9%inclusion11 decks123 decks
6%synergy
Harmonize
8.9%inclusion11 decks123 decks
4%synergy
Shared Roots
7.5%inclusion4 decks53 decks
2%synergy
Distant Melody
7.3%inclusion9 decks123 decks
4%synergy
Ponder
6.5%inclusion8 decks123 decks
-1%synergy
Windfall
5.7%inclusion7 decks123 decks
2%synergy
Triumph of the Hordes
5.7%inclusion7 decks123 decks
3%synergy
Sea Gate Restoration
5.7%inclusion7 decks123 decks
0%synergy
Tempt with Discovery
5.7%inclusion7 decks123 decks
2%synergy
Curse of the Swine
5.7%inclusion7 decks123 decks
-6%synergy
Bala Ged Recovery
5.7%inclusion7 decks123 decks
-4%synergy
Applied Geometry
5.4%inclusion2 decks37 decks
1%synergy
Planar Engineering
5.4%inclusion2 decks37 decks
1%synergy
Mind into Matter
5.4%inclusion2 decks37 decks
-3%synergy
Utility Artifacts
Swiftfoot Boots
41%inclusion51 decks123 decks
17%synergy
Helm of the Host
37%inclusion45 decks123 decks
32%synergy
Lightning Greaves
29%inclusion36 decks123 decks
9%synergy
Kefnet's Monument
20%inclusion25 decks123 decks
19%synergy
Combine Chrysalis
20%inclusion24 decks123 decks
15%synergy
Sapphire Medallion
15%inclusion19 decks123 decks
12%synergy
Emerald Medallion
12%inclusion15 decks123 decks
9%synergy
Mirror Box
10%inclusion12 decks123 decks
7%synergy
The Great Henge
10%inclusion12 decks123 decks
0%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
Enchantments
Tribute to the World Tree
42%inclusion52 decks123 decks
37%synergy
Garruk's Uprising
38%inclusion47 decks123 decks
21%synergy
Doubling Season
37%inclusion45 decks123 decks
26%synergy
Quest for Ula's Temple
30%inclusion37 decks123 decks
28%synergy
Ominous Seas
26%inclusion32 decks123 decks
22%synergy
Kindred Discovery
23%inclusion28 decks123 decks
14%synergy
Unnatural Growth
17%inclusion21 decks123 decks
14%synergy
Mystic Remora
15%inclusion18 decks123 decks
1%synergy
Beastmaster Ascension
14%inclusion17 decks123 decks
11%synergy
Impostor Syndrome
14%inclusion8 decks59 decks
12%synergy
Exploration
13%inclusion16 decks123 decks
0%synergy
Kiora Bests the Sea God
13%inclusion16 decks123 decks
11%synergy
Defense of the Heart
13%inclusion16 decks123 decks
11%synergy
Cryptolith Rite
11%inclusion13 decks123 decks
7%synergy
Burgeoning
11%inclusion13 decks123 decks
4%synergy
Moonlit Meditation
10%inclusion6 decks61 decks
9%synergy
Utopia Sprawl
10%inclusion12 decks123 decks
3%synergy
Wilderness Reclamation
10%inclusion12 decks123 decks
1%synergy
Extravagant Replication
8.9%inclusion11 decks123 decks
6%synergy
Paradox Haze
8.9%inclusion11 decks123 decks
9%synergy
Propaganda
8.9%inclusion11 decks123 decks
2%synergy
Growing Rites of Itlimoc
8.9%inclusion11 decks123 decks
4%synergy
Sylvan Library
8.1%inclusion10 decks123 decks
-0%synergy
Khalni Heart Expedition
8.1%inclusion10 decks123 decks
5%synergy
Primal Vigor
8.1%inclusion10 decks123 decks
5%synergy
Springleaf Parade
7.8%inclusion4 decks51 decks
5%synergy
Up the Beanstalk
7.3%inclusion9 decks123 decks
3%synergy
Levitation
6.5%inclusion8 decks123 decks
6%synergy
Colossal Majesty
6.5%inclusion8 decks123 decks
5%synergy
Wild Growth
5.7%inclusion7 decks123 decks
-3%synergy
Omniscience
5.7%inclusion7 decks123 decks
1%synergy
Battles
Invasion of Segovia
10%inclusion12 decks123 decks
9%synergy
Planeswalkers
Kiora, the Crashing Wave
19%inclusion23 decks123 decks
16%synergy
Kiora, Master of the Depths
7.3%inclusion9 decks123 decks
5%synergy
Kiora, Behemoth Beckoner
6.5%inclusion8 decks123 decks
1%synergy
Oko, Thief of Crowns
6.5%inclusion8 decks123 decks
0%synergy
Utility Lands
Reliquary Tower
63%inclusion78 decks123 decks
13%synergy
Mosswort Bridge
28%inclusion34 decks123 decks
11%synergy
Temple of the False God
24%inclusion30 decks123 decks
8%synergy
Yavimaya, Cradle of Growth
18%inclusion22 decks123 decks
-3%synergy
Rogue's Passage
18%inclusion22 decks123 decks
-5%synergy
Evendo, Waking Haven
18%inclusion11 decks62 decks
13%synergy
Mystic Sanctuary
16%inclusion20 decks123 decks
4%synergy
Boseiju, Who Endures
15%inclusion18 decks123 decks
-7%synergy
Mistrise Village
12%inclusion8 decks68 decks
1%synergy
Three Tree City
11%inclusion14 decks123 decks
7%synergy
Dark Depths
11%inclusion13 decks123 decks
4%synergy
Otawara, Soaring City
11%inclusion13 decks123 decks
-8%synergy
Alchemist's Refuge
10%inclusion12 decks123 decks
-9%synergy
Command Beacon
10%inclusion12 decks123 decks
6%synergy
Castle Garenbrig
10%inclusion12 decks123 decks
6%synergy
Coral Atoll
8.9%inclusion11 decks123 decks
7%synergy
Castle Vantress
8.9%inclusion11 decks123 decks
2%synergy
Restless Vinestalk
6.5%inclusion8 decks123 decks
2%synergy
Mana Artifacts
Sol Ring
93%inclusion114 decks123 decks
13%synergy
Arcane Signet
78%inclusion96 decks123 decks
15%synergy
Simic Signet
38%inclusion47 decks123 decks
9%synergy
Thought Vessel
28%inclusion34 decks123 decks
8%synergy
Talisman of Curiosity
23%inclusion28 decks123 decks
1%synergy
Commander's Sphere
12%inclusion15 decks123 decks
5%synergy
Decanter of Endless Water
11%inclusion14 decks123 decks
7%synergy
Thran Dynamo
7.3%inclusion9 decks123 decks
4%synergy
Herd Heirloom
6.0%inclusion4 decks67 decks
3%synergy
Lands
Island
93%inclusion114 decks123 decks
-3%synergy
Forest
93%inclusion114 decks123 decks
-3%synergy
Command Tower
85%inclusion104 decks123 decks
-0%synergy
Hinterland Harbor
68%inclusion84 decks123 decks
6%synergy
Simic Growth Chamber
61%inclusion75 decks123 decks
16%synergy
Dreamroot Cascade
54%inclusion66 decks123 decks
8%synergy
Breeding Pool
46%inclusion57 decks123 decks
-1%synergy
Rejuvenating Springs
46%inclusion57 decks123 decks
4%synergy
Temple of Mystery
46%inclusion56 decks123 decks
9%synergy
Flooded Grove
46%inclusion56 decks123 decks
2%synergy
Yavimaya Coast
39%inclusion48 decks123 decks
-14%synergy
Vineglimmer Snarl
37%inclusion46 decks123 decks
-2%synergy
Thornwood Falls
32%inclusion39 decks123 decks
15%synergy
Barkchannel Pathway
30%inclusion37 decks123 decks
10%synergy
Evolving Wilds
27%inclusion33 decks123 decks
3%synergy
Myriad Landscape
26%inclusion32 decks123 decks
6%synergy
Misty Rainforest
25%inclusion31 decks123 decks
-6%synergy
Tangled Islet
24%inclusion30 decks123 decks
9%synergy
Willowrush Verge
22%inclusion16 decks74 decks
3%synergy
Sodden Verdure
20%inclusion10 decks51 decks
-3%synergy
Terramorphic Expanse
18%inclusion22 decks123 decks
-2%synergy
Exotic Orchard
18%inclusion22 decks123 decks
-7%synergy
Overflowing Basin
15%inclusion18 decks123 decks
-7%synergy
Waterlogged Grove
15%inclusion18 decks123 decks
-5%synergy
Hedge Maze
15%inclusion18 decks123 decks
-5%synergy
Rain-Slicked Copse
14%inclusion7 decks51 decks
4%synergy
Rimewood Falls
13%inclusion16 decks123 decks
6%synergy
Path of Ancestry
13%inclusion16 decks123 decks
-5%synergy
Fabled Passage
12%inclusion15 decks123 decks
-5%synergy
Snow-Covered Forest
11%inclusion14 decks123 decks
6%synergy
Snow-Covered Island
11%inclusion13 decks123 decks
5%synergy
Tropical Island
11%inclusion13 decks123 decks
-4%synergy
Botanical Sanctum
11%inclusion13 decks123 decks
-2%synergy
Woodland Stream
11%inclusion13 decks123 decks
6%synergy
Blighted Woodland
10%inclusion12 decks123 decks
3%synergy
Simic Guildgate
10%inclusion12 decks123 decks
1%synergy
Littjara Mirrorlake
8.1%inclusion10 decks123 decks
5%synergy
Glasspool Mimic
8.1%inclusion10 decks123 decks
4%synergy
Lush Oasis
7.3%inclusion9 decks123 decks
2%synergy
Sink into Stupor
6.5%inclusion8 decks123 decks
-6%synergy
Sea Gate Restoration
5.7%inclusion7 decks123 decks
0%synergy
Bala Ged Recovery
5.7%inclusion7 decks123 decks
-4%synergy
Paradox Gardens
5.4%inclusion2 decks37 decks
-2%synergy
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