Koma, Cosmos Serpent (Commander) - Budget

Alternate Names:

The Monstrous SerpentThe Monstrous Serpent

Koma, Cosmos Serpent
Rank #295
665decks
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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Agna Qel'a
5.0%inclusion2 decks40 decks
4%synergy
Shared Roots
4.7%inclusion2 decks43 decks
2%synergy
The Unagi of Kyoshi Island
4.3%inclusion2 decks47 decks
0%synergy
The Legend of Kyoshi
2.5%inclusion1 decks40 decks
1%synergy
Secret of Bloodbending
2.0%inclusion1 decks51 decks
2%synergy
High Synergy Cards
Whelming Wave
65%inclusion435 decks665 decks
54%synergy
Junk Winder
54%inclusion362 decks665 decks
48%synergy
Koma, World-Eater
59%inclusion258 decks434 decks
46%synergy
Garruk's Packleader
42%inclusion281 decks665 decks
40%synergy
Slinn Voda, the Rising Deep
45%inclusion299 decks665 decks
38%synergy
Arixmethes, Slumbering Isle
50%inclusion334 decks665 decks
37%synergy
Adrix and Nev, Twincasters
44%inclusion294 decks665 decks
36%synergy
Elemental Bond
38%inclusion251 decks665 decks
32%synergy
Urban Evolution
42%inclusion278 decks665 decks
32%synergy
Negate
58%inclusion384 decks665 decks
32%synergy
Top Cards
Rampant Growth
71%inclusion471 decks665 decks
30%synergy
Cultivate
67%inclusion448 decks665 decks
20%synergy
Growth Spiral
64%inclusion423 decks665 decks
19%synergy
Kodama's Reach
54%inclusion358 decks665 decks
17%synergy
Counterspell
52%inclusion343 decks665 decks
2%synergy
Llanowar Elves
51%inclusion340 decks665 decks
23%synergy
Tatyova, Benthic Druid
50%inclusion335 decks665 decks
19%synergy
Explore
49%inclusion327 decks665 decks
29%synergy
Coiling Oracle
43%inclusion288 decks665 decks
30%synergy
Beast Within
43%inclusion284 decks665 decks
-8%synergy
Creatures
Murkfiend Liege
40%inclusion268 decks665 decks
26%synergy
Sakura-Tribe Elder
39%inclusion262 decks665 decks
20%synergy
Elvish Mystic
36%inclusion238 decks665 decks
12%synergy
Scourge of Fleets
35%inclusion235 decks665 decks
27%synergy
Esix, Fractal Bloom
31%inclusion205 decks665 decks
27%synergy
Nadir Kraken
30%inclusion199 decks665 decks
26%synergy
Octomancer
29%inclusion153 decks526 decks
24%synergy
Reclamation Sage
28%inclusion189 decks665 decks
14%synergy
Archetype of Imagination
27%inclusion180 decks665 decks
23%synergy
Rampaging Baloths
26%inclusion175 decks665 decks
9%synergy
Summon: Leviathan
26%inclusion59 decks229 decks
19%synergy
Hullbreaker Horror
26%inclusion170 decks665 decks
8%synergy
Stormtide Leviathan
25%inclusion165 decks665 decks
19%synergy
Xolatoyac, the Smiling Flood
25%inclusion164 decks665 decks
17%synergy
Troyan, Gutsy Explorer
25%inclusion163 decks665 decks
21%synergy
Tromokratis
22%inclusion148 decks665 decks
17%synergy
Fyndhorn Elves
22%inclusion143 decks665 decks
6%synergy
Aesi, Tyrant of Gyre Strait
20%inclusion135 decks665 decks
3%synergy
Inga and Esika
20%inclusion131 decks665 decks
17%synergy
Reef Worm
19%inclusion126 decks665 decks
15%synergy
Eternal Witness
18%inclusion121 decks665 decks
-3%synergy
Kiora, Sovereign of the Deep
15%inclusion103 decks665 decks
13%synergy
Serpent of Yawning Depths
15%inclusion101 decks665 decks
9%synergy
Starwinder
15%inclusion25 decks172 decks
8%synergy
Spawning Kraken
14%inclusion94 decks665 decks
7%synergy
Spark Double
14%inclusion93 decks665 decks
4%synergy
Simic Sky Swallower
13%inclusion88 decks665 decks
9%synergy
Trygon Predator
13%inclusion88 decks665 decks
7%synergy
Hydroid Krasis
13%inclusion87 decks665 decks
5%synergy
Ohran Frostfang
12%inclusion81 decks665 decks
8%synergy
Inkwell Leviathan
12%inclusion80 decks665 decks
8%synergy
Avenger of Zendikar
12%inclusion77 decks665 decks
-6%synergy
End-Raze Forerunners
12%inclusion77 decks665 decks
7%synergy
Curiosity Crafter
11%inclusion76 decks665 decks
8%synergy
Skyserpent Seeker
11%inclusion39 decks344 decks
8%synergy
Gala Greeters
11%inclusion74 decks665 decks
9%synergy
Shipbreaker Kraken
11%inclusion74 decks665 decks
8%synergy
Scute Swarm
11%inclusion70 decks665 decks
-10%synergy
Nezahal, Primal Tide
10%inclusion67 decks665 decks
-1%synergy
Charix, the Raging Isle
10%inclusion67 decks665 decks
7%synergy
Progenitor Mimic
10%inclusion66 decks665 decks
5%synergy
Brinelin, the Moon Kraken
10%inclusion65 decks665 decks
5%synergy
Saryth, the Viper's Fang
9.2%inclusion61 decks665 decks
7%synergy
Wood Elves
9.2%inclusion61 decks665 decks
2%synergy
Zimone, Quandrix Prodigy
8.7%inclusion58 decks665 decks
6%synergy
Mulldrifter
8.4%inclusion56 decks665 decks
2%synergy
Monstrosity of the Lake
8.4%inclusion56 decks665 decks
6%synergy
Reservoir Kraken
8.3%inclusion55 decks665 decks
7%synergy
Poison Dart Frog
8.3%inclusion55 decks665 decks
2%synergy
Imoti, Celebrant of Bounty
8.0%inclusion53 decks665 decks
4%synergy
Instants
Return of the Wildspeaker
36%inclusion241 decks665 decks
26%synergy
Return to Nature
31%inclusion206 decks665 decks
25%synergy
Eureka Moment
31%inclusion203 decks665 decks
20%synergy
Double Major
30%inclusion201 decks665 decks
22%synergy
Simic Charm
29%inclusion190 decks665 decks
21%synergy
Aetherize
23%inclusion156 decks665 decks
12%synergy
Planar Genesis
23%inclusion130 decks557 decks
13%synergy
Harrow
23%inclusion154 decks665 decks
11%synergy
Snakeskin Veil
22%inclusion149 decks665 decks
17%synergy
Decisive Denial
22%inclusion143 decks665 decks
16%synergy
Reality Shift
21%inclusion140 decks665 decks
6%synergy
Krosan Grip
20%inclusion133 decks665 decks
12%synergy
Arcane Denial
17%inclusion115 decks665 decks
-5%synergy
Second Harvest
17%inclusion112 decks665 decks
10%synergy
Plasm Capture
17%inclusion111 decks665 decks
13%synergy
Joint Exploration
15%inclusion101 decks665 decks
9%synergy
Rapid Hybridization
14%inclusion92 decks665 decks
-12%synergy
Perplexing Test
14%inclusion91 decks665 decks
9%synergy
Disdainful Stroke
13%inclusion89 decks665 decks
12%synergy
Brainstorm
12%inclusion82 decks665 decks
-2%synergy
An Offer You Can't Refuse
12%inclusion82 decks665 decks
-11%synergy
Pongify
11%inclusion76 decks665 decks
-13%synergy
Opt
11%inclusion71 decks665 decks
3%synergy
Fact or Fiction
11%inclusion70 decks665 decks
8%synergy
Auroral Procession
10%inclusion29 decks282 decks
7%synergy
Saw It Coming
10%inclusion68 decks665 decks
9%synergy
Voidslime
10%inclusion66 decks665 decks
5%synergy
Cancel
10%inclusion65 decks665 decks
8%synergy
Nature's Claim
9.3%inclusion62 decks665 decks
-1%synergy
Resculpt
9.0%inclusion60 decks665 decks
3%synergy
Essence Scatter
8.1%inclusion54 decks665 decks
7%synergy
Refute
7.5%inclusion33 decks438 decks
5%synergy
Rewind
7.5%inclusion50 decks665 decks
5%synergy
Entish Restoration
7.4%inclusion49 decks665 decks
-2%synergy
Roiling Regrowth
7.2%inclusion48 decks665 decks
3%synergy
Mystic Reflection
6.9%inclusion46 decks665 decks
4%synergy
Dispel
6.9%inclusion46 decks665 decks
2%synergy
Mana Leak
6.9%inclusion46 decks665 decks
5%synergy
Repulsive Mutation
6.2%inclusion40 decks642 decks
1%synergy
Mystic Confluence
6.2%inclusion41 decks665 decks
3%synergy
Heritage Reclamation
6.0%inclusion17 decks281 decks
4%synergy
Naturalize
6.0%inclusion40 decks665 decks
4%synergy
Spell Pierce
6.0%inclusion40 decks665 decks
3%synergy
Sublime Epiphany
6.0%inclusion40 decks665 decks
4%synergy
Tamiyo's Safekeeping
5.7%inclusion38 decks665 decks
0%synergy
Fog
5.4%inclusion36 decks665 decks
2%synergy
Biomass Mutation
5.4%inclusion36 decks665 decks
2%synergy
Wash Away
5.4%inclusion36 decks665 decks
4%synergy
Into the Roil
5.3%inclusion35 decks665 decks
4%synergy
Sorceries
Farseek
30%inclusion198 decks665 decks
5%synergy
Harmonize
27%inclusion180 decks665 decks
21%synergy
Shamanic Revelation
24%inclusion160 decks665 decks
19%synergy
Migration Path
23%inclusion156 decks665 decks
20%synergy
Search for Tomorrow
22%inclusion145 decks665 decks
17%synergy
Irenicus's Vile Duplication
21%inclusion141 decks665 decks
15%synergy
Nature's Lore
19%inclusion125 decks665 decks
-12%synergy
Explosive Vegetation
18%inclusion123 decks665 decks
13%synergy
Overwhelming Stampede
17%inclusion114 decks665 decks
5%synergy
Ravenform
16%inclusion109 decks665 decks
12%synergy
Skyshroud Claim
16%inclusion108 decks665 decks
7%synergy
Curse of the Swine
15%inclusion102 decks665 decks
4%synergy
Distant Melody
13%inclusion87 decks665 decks
10%synergy
Overrun
12%inclusion81 decks665 decks
10%synergy
Regrowth
11%inclusion71 decks665 decks
7%synergy
Rishkar's Expertise
10%inclusion69 decks665 decks
2%synergy
Preposterous Proportions
10%inclusion44 decks430 decks
9%synergy
Ezuri's Predation
10%inclusion66 decks665 decks
2%synergy
Rite of Replication
10%inclusion65 decks665 decks
3%synergy
Doppelgang
9.2%inclusion59 decks642 decks
3%synergy
Grow from the Ashes
9.2%inclusion61 decks665 decks
7%synergy
Broken Bond
9.2%inclusion61 decks665 decks
4%synergy
Circuitous Route
8.4%inclusion56 decks665 decks
6%synergy
Spitting Image
8.0%inclusion53 decks665 decks
6%synergy
Vastwood Surge
6.9%inclusion46 decks665 decks
6%synergy
Nissa's Pilgrimage
6.3%inclusion42 decks665 decks
5%synergy
Bushwhack
6.3%inclusion42 decks665 decks
4%synergy
Finale of Revelation
6.2%inclusion41 decks665 decks
1%synergy
Treasure Cruise
6.2%inclusion41 decks665 decks
3%synergy
Three Visits
5.9%inclusion39 decks665 decks
-17%synergy
Aggressive Biomancy
5.1%inclusion28 decks554 decks
0%synergy
Utility Artifacts
Swiftfoot Boots
38%inclusion250 decks665 decks
12%synergy
Combine Chrysalis
33%inclusion221 decks665 decks
29%synergy
Idol of Oblivion
18%inclusion121 decks665 decks
15%synergy
Bident of Thassa
12%inclusion77 decks665 decks
4%synergy
Helm of the Host
8.7%inclusion58 decks665 decks
3%synergy
Lightning Greaves
8.0%inclusion53 decks665 decks
-14%synergy
Wayfarer's Bauble
7.5%inclusion50 decks665 decks
6%synergy
Mirror Box
7.1%inclusion47 decks665 decks
4%synergy
Kefnet's Monument
6.3%inclusion42 decks665 decks
5%synergy
Symmetry Matrix
5.6%inclusion37 decks665 decks
5%synergy
Enchantments
Garruk's Uprising
30%inclusion200 decks665 decks
14%synergy
Wild Growth
22%inclusion145 decks665 decks
13%synergy
Khalni Heart Expedition
17%inclusion115 decks665 decks
13%synergy
Wilderness Reclamation
16%inclusion107 decks665 decks
7%synergy
Primal Empathy
13%inclusion89 decks665 decks
11%synergy
Ominous Seas
12%inclusion83 decks665 decks
8%synergy
Utopia Sprawl
12%inclusion79 decks665 decks
5%synergy
Imprisoned in the Moon
11%inclusion70 decks665 decks
6%synergy
Moonlit Meditation
10%inclusion17 decks173 decks
8%synergy
Kenrith's Transformation
9.3%inclusion62 decks665 decks
5%synergy
Propaganda
9.3%inclusion62 decks665 decks
3%synergy
Verity Circle
9.0%inclusion60 decks665 decks
9%synergy
Bounty of the Luxa
8.0%inclusion53 decks665 decks
7%synergy
Extravagant Replication
7.5%inclusion50 decks665 decks
5%synergy
Primal Vigor
7.2%inclusion48 decks665 decks
4%synergy
Beastmaster Ascension
7.1%inclusion47 decks665 decks
4%synergy
Unnatural Growth
7.1%inclusion47 decks665 decks
4%synergy
Sandwurm Convergence
6.9%inclusion46 decks665 decks
4%synergy
Kindred Discovery
6.8%inclusion45 decks665 decks
-3%synergy
Fertile Ground
6.8%inclusion45 decks665 decks
5%synergy
Glorious Sunrise
5.9%inclusion39 decks665 decks
5%synergy
Witness Protection
5.4%inclusion36 decks665 decks
3%synergy
Levitation
5.3%inclusion35 decks665 decks
4%synergy
Tribute to the World Tree
5.1%inclusion34 decks665 decks
-1%synergy
Battles
Invasion of Zendikar
6.3%inclusion42 decks665 decks
5%synergy
Invasion of Segovia
5.4%inclusion36 decks665 decks
5%synergy
Planeswalkers
Kiora, Behemoth Beckoner
12%inclusion77 decks665 decks
5%synergy
Kiora, the Crashing Wave
8.4%inclusion56 decks665 decks
6%synergy
Utility Lands
Reliquary Tower
33%inclusion217 decks665 decks
-17%synergy
Temple of the False God
25%inclusion165 decks665 decks
9%synergy
Mosswort Bridge
18%inclusion117 decks665 decks
0%synergy
Rogue's Passage
17%inclusion113 decks665 decks
-5%synergy
Lumbering Falls
9.2%inclusion61 decks665 decks
2%synergy
Restless Vinestalk
8.3%inclusion55 decks665 decks
3%synergy
Coral Atoll
6.0%inclusion40 decks665 decks
3%synergy
Lonely Sandbar
5.9%inclusion39 decks665 decks
2%synergy
Jungle Basin
5.4%inclusion36 decks665 decks
3%synergy
Tranquil Thicket
5.1%inclusion34 decks665 decks
1%synergy
Mana Artifacts
Sol Ring
78%inclusion522 decks665 decks
-2%synergy
Arcane Signet
65%inclusion432 decks665 decks
2%synergy
Simic Signet
51%inclusion340 decks665 decks
19%synergy
Talisman of Curiosity
30%inclusion197 decks665 decks
8%synergy
Commander's Sphere
27%inclusion181 decks665 decks
19%synergy
Thought Vessel
18%inclusion119 decks665 decks
-2%synergy
Mind Stone
14%inclusion95 decks665 decks
10%synergy
Fellwar Stone
9.0%inclusion60 decks665 decks
-1%synergy
Moss Diamond
8.3%inclusion55 decks665 decks
7%synergy
Sky Diamond
6.8%inclusion45 decks665 decks
6%synergy
Decanter of Endless Water
5.9%inclusion39 decks665 decks
1%synergy
Lands
Island
99%inclusion657 decks665 decks
3%synergy
Forest
98%inclusion655 decks665 decks
3%synergy
Command Tower
76%inclusion506 decks665 decks
-9%synergy
Simic Growth Chamber
58%inclusion383 decks665 decks
9%synergy
Temple of Mystery
49%inclusion327 decks665 decks
11%synergy
Thornwood Falls
47%inclusion311 decks665 decks
29%synergy
Evolving Wilds
43%inclusion283 decks665 decks
17%synergy
Yavimaya Coast
42%inclusion281 decks665 decks
-10%synergy
Hinterland Harbor
40%inclusion264 decks665 decks
-20%synergy
Vineglimmer Snarl
37%inclusion247 decks665 decks
-1%synergy
Myriad Landscape
35%inclusion232 decks665 decks
13%synergy
Exotic Orchard
29%inclusion190 decks665 decks
5%synergy
Flooded Grove
28%inclusion189 decks665 decks
-12%synergy
Simic Guildgate
28%inclusion183 decks665 decks
17%synergy
Terramorphic Expanse
27%inclusion177 decks665 decks
7%synergy
Tangled Islet
25%inclusion167 decks665 decks
9%synergy
Overflowing Basin
18%inclusion110 decks621 decks
-2%synergy
Rimewood Falls
17%inclusion113 decks665 decks
8%synergy
Path of Ancestry
17%inclusion111 decks665 decks
-1%synergy
Dreamroot Cascade
16%inclusion108 decks665 decks
-26%synergy
Woodland Stream
14%inclusion94 decks665 decks
9%synergy
Blighted Woodland
14%inclusion93 decks665 decks
6%synergy
Quandrix Campus
11%inclusion76 decks665 decks
5%synergy
Lush Oasis
10%inclusion60 decks602 decks
4%synergy
Littjara Mirrorlake
8.7%inclusion58 decks665 decks
5%synergy
Waterlogged Grove
7.8%inclusion52 decks665 decks
-13%synergy
Botanical Sanctum
5.9%inclusion39 decks665 decks
-7%synergy
Rejuvenating Springs
5.9%inclusion39 decks665 decks
-38%synergy
Barkchannel Pathway
5.3%inclusion35 decks665 decks
-15%synergy
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