Koma, Cosmos Serpent (Commander) - Expensive Aggro

Alternate Names:

The Monstrous SerpentThe Monstrous Serpent

Koma, Cosmos Serpent
Rank #298
2decks
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.
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Ancient Tomb
100%inclusion2 decks2 decks
91%synergy
Crop Rotation
100%inclusion2 decks2 decks
87%synergy
The One Ring
100%inclusion2 decks2 decks
92%synergy
Rhystic Study
100%inclusion2 decks2 decks
78%synergy
Mana Vault
100%inclusion2 decks2 decks
94%synergy
Gaea's Cradle
100%inclusion2 decks2 decks
93%synergy
Force of Will
100%inclusion2 decks2 decks
90%synergy
Fierce Guardianship
100%inclusion2 decks2 decks
83%synergy
Cyclonic Rift
100%inclusion2 decks2 decks
74%synergy
Worldly Tutor
100%inclusion2 decks2 decks
85%synergy
Creatures
Junk Winder
100%inclusion2 decks2 decks
93%synergy
Craterhoof Behemoth
100%inclusion2 decks2 decks
91%synergy
Spark Double
100%inclusion2 decks2 decks
90%synergy
Sakashima of a Thousand Faces
100%inclusion2 decks2 decks
95%synergy
Birds of Paradise
100%inclusion2 decks2 decks
72%synergy
Hullbreaker Horror
100%inclusion2 decks2 decks
82%synergy
Displacer Kitten
50%inclusion1 decks2 decks
46%synergy
Peregrine Drake
50%inclusion1 decks2 decks
46%synergy
Bloom Tender
50%inclusion1 decks2 decks
46%synergy
Adrix and Nev, Twincasters
50%inclusion1 decks2 decks
42%synergy
Garruk's Packleader
50%inclusion1 decks2 decks
48%synergy
Koma, World-Eater
50%inclusion1 decks2 decks
37%synergy
Kiora's Follower
50%inclusion1 decks2 decks
35%synergy
Consecrated Sphinx
50%inclusion1 decks2 decks
41%synergy
Phyrexian Metamorph
50%inclusion1 decks2 decks
41%synergy
Incubation Druid
50%inclusion1 decks2 decks
42%synergy
Seedborn Muse
50%inclusion1 decks2 decks
34%synergy
Ilysian Caryatid
50%inclusion1 decks2 decks
46%synergy
Aesi, Tyrant of Gyre Strait
50%inclusion1 decks2 decks
33%synergy
Wandering Archaic
50%inclusion1 decks2 decks
45%synergy
Kinnan, Bonder Prodigy
50%inclusion1 decks2 decks
47%synergy
Esix, Fractal Bloom
50%inclusion1 decks2 decks
46%synergy
Sylvan Safekeeper
50%inclusion1 decks2 decks
46%synergy
Phantasmal Image
50%inclusion1 decks2 decks
47%synergy
Arixmethes, Slumbering Isle
50%inclusion1 decks2 decks
37%synergy
Serpent of Yawning Depths
50%inclusion1 decks2 decks
44%synergy
Clever Impersonator
50%inclusion1 decks2 decks
45%synergy
Vorinclex, Voice of Hunger
50%inclusion1 decks2 decks
47%synergy
Spellskite
50%inclusion1 decks2 decks
45%synergy
Somberwald Sage
50%inclusion1 decks2 decks
49%synergy
Delighted Halfling
50%inclusion1 decks2 decks
39%synergy
Instants
An Offer You Can't Refuse
100%inclusion2 decks2 decks
77%synergy
Archdruid's Charm
100%inclusion2 decks2 decks
94%synergy
Mindbreak Trap
100%inclusion2 decks2 decks
95%synergy
Force of Vigor
100%inclusion2 decks2 decks
95%synergy
Beast Within
100%inclusion2 decks2 decks
50%synergy
Flusterstorm
100%inclusion2 decks2 decks
93%synergy
Arcane Denial
100%inclusion2 decks2 decks
78%synergy
Counterspell
100%inclusion2 decks2 decks
50%synergy
Mystical Tutor
100%inclusion2 decks2 decks
91%synergy
Rapid Hybridization
50%inclusion1 decks2 decks
24%synergy
Heroic Intervention
50%inclusion1 decks2 decks
20%synergy
Negate
50%inclusion1 decks2 decks
24%synergy
Krosan Grip
50%inclusion1 decks2 decks
42%synergy
Legolas's Quick Reflexes
50%inclusion1 decks2 decks
47%synergy
Second Harvest
50%inclusion1 decks2 decks
44%synergy
Nature's Claim
50%inclusion1 decks2 decks
40%synergy
Mana Drain
50%inclusion1 decks2 decks
34%synergy
Disallow
50%inclusion1 decks2 decks
48%synergy
Swan Song
50%inclusion1 decks2 decks
31%synergy
Tale's End
50%inclusion1 decks2 decks
49%synergy
Noxious Revival
50%inclusion1 decks2 decks
44%synergy
Cryptic Command
50%inclusion1 decks2 decks
49%synergy
Force of Negation
50%inclusion1 decks2 decks
42%synergy
Stifle
50%inclusion1 decks2 decks
49%synergy
Rewind
50%inclusion1 decks2 decks
47%synergy
Borne Upon a Wind
50%inclusion1 decks2 decks
49%synergy
Pact of Negation
50%inclusion1 decks2 decks
43%synergy
Sorceries
Triumph of the Hordes
100%inclusion2 decks2 decks
97%synergy
Finale of Devastation
100%inclusion2 decks2 decks
88%synergy
Green Sun's Zenith
50%inclusion1 decks2 decks
41%synergy
Eldritch Evolution
50%inclusion1 decks2 decks
46%synergy
Quantum Misalignment
50%inclusion1 decks2 decks
47%synergy
Neoform
50%inclusion1 decks2 decks
46%synergy
Tempt with Discovery
50%inclusion1 decks2 decks
46%synergy
Temporal Manipulation
50%inclusion1 decks2 decks
49%synergy
Irenicus's Vile Duplication
50%inclusion1 decks2 decks
44%synergy
Nylea's Intervention
50%inclusion1 decks2 decks
49%synergy
Bala Ged Recovery
50%inclusion1 decks2 decks
40%synergy
Overwhelming Stampede
50%inclusion1 decks2 decks
38%synergy
Whelming Wave
50%inclusion1 decks2 decks
39%synergy
Sylvan Scrying
50%inclusion1 decks2 decks
44%synergy
Utility Artifacts
Sensei's Divining Top
50%inclusion1 decks2 decks
46%synergy
Coat of Arms
50%inclusion1 decks2 decks
49%synergy
The Great Henge
50%inclusion1 decks2 decks
41%synergy
Helm of the Host
50%inclusion1 decks2 decks
45%synergy
Phyrexian Altar
50%inclusion1 decks2 decks
50%synergy
Whispersilk Cloak
50%inclusion1 decks2 decks
48%synergy
Lightning Greaves
50%inclusion1 decks2 decks
28%synergy
Enchantments
Parallel Lives
100%inclusion2 decks2 decks
94%synergy
Mystic Remora
100%inclusion2 decks2 decks
85%synergy
Defense of the Heart
100%inclusion2 decks2 decks
98%synergy
Kindred Discovery
50%inclusion1 decks2 decks
40%synergy
Doubling Season
50%inclusion1 decks2 decks
40%synergy
Wilderness Reclamation
50%inclusion1 decks2 decks
41%synergy
Tribute to the World Tree
50%inclusion1 decks2 decks
44%synergy
Sylvan Library
50%inclusion1 decks2 decks
41%synergy
Opposition
50%inclusion1 decks2 decks
50%synergy
Quest for Renewal
50%inclusion1 decks2 decks
48%synergy
Elemental Bond
50%inclusion1 decks2 decks
44%synergy
Battles
Invasion of Ikoria
50%inclusion1 decks2 decks
46%synergy
Planeswalkers
Oko, Thief of Crowns
50%inclusion1 decks2 decks
43%synergy
Utility Lands
Urza's Saga
100%inclusion2 decks2 decks
94%synergy
Boseiju, Who Endures
100%inclusion2 decks2 decks
78%synergy
Otawara, Soaring City
100%inclusion2 decks2 decks
81%synergy
Wasteland
50%inclusion1 decks2 decks
49%synergy
Minamo, School at Water's Edge
50%inclusion1 decks2 decks
44%synergy
Mistrise Village
50%inclusion1 decks2 decks
39%synergy
Alchemist's Refuge
50%inclusion1 decks2 decks
33%synergy
Boseiju, Who Shelters All
50%inclusion1 decks2 decks
49%synergy
Scavenger Grounds
50%inclusion1 decks2 decks
46%synergy
Emergence Zone
50%inclusion1 decks2 decks
46%synergy
Command Beacon
50%inclusion1 decks2 decks
46%synergy
Nykthos, Shrine to Nyx
50%inclusion1 decks2 decks
47%synergy
Yavimaya, Cradle of Growth
50%inclusion1 decks2 decks
28%synergy
Reliquary Tower
50%inclusion1 decks2 decks
0%synergy
Three Tree City
50%inclusion1 decks2 decks
45%synergy
Mana Artifacts
Arcane Signet
100%inclusion2 decks2 decks
37%synergy
Sol Ring
100%inclusion2 decks2 decks
19%synergy
Lotus Petal
50%inclusion1 decks2 decks
43%synergy
Talisman of Curiosity
50%inclusion1 decks2 decks
29%synergy
Fellwar Stone
50%inclusion1 decks2 decks
40%synergy
Lands
Command Tower
100%inclusion2 decks2 decks
15%synergy
Misty Rainforest
100%inclusion2 decks2 decks
69%synergy
Breeding Pool
100%inclusion2 decks2 decks
54%synergy
Tropical Island
100%inclusion2 decks2 decks
86%synergy
Mana Confluence
100%inclusion2 decks2 decks
94%synergy
Rejuvenating Springs
100%inclusion2 decks2 decks
56%synergy
Prismatic Vista
50%inclusion1 decks2 decks
43%synergy
Exotic Orchard
50%inclusion1 decks2 decks
26%synergy
Windswept Heath
50%inclusion1 decks2 decks
40%synergy
Vineglimmer Snarl
50%inclusion1 decks2 decks
11%synergy
Yavimaya Coast
50%inclusion1 decks2 decks
-2%synergy
Snow-Covered Island
50%inclusion1 decks2 decks
43%synergy
Snow-Covered Forest
50%inclusion1 decks2 decks
43%synergy
Wooded Foothills
50%inclusion1 decks2 decks
40%synergy
Waterlogged Grove
50%inclusion1 decks2 decks
29%synergy
Island
50%inclusion1 decks2 decks
-45%synergy
Forest
50%inclusion1 decks2 decks
-45%synergy
Gemstone Caverns
50%inclusion1 decks2 decks
44%synergy
Hedge Maze
50%inclusion1 decks2 decks
30%synergy
Bala Ged Recovery
50%inclusion1 decks2 decks
40%synergy
Dreamroot Cascade
50%inclusion1 decks2 decks
8%synergy
City of Brass
50%inclusion1 decks2 decks
44%synergy
Hinterland Harbor
50%inclusion1 decks2 decks
-9%synergy
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