Koma, Cosmos Serpent (Commander) - Expensive Optimized Control

Alternate Names:

The Monstrous SerpentThe Monstrous Serpent

Koma, Cosmos Serpent
Rank #296
3decks
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
Game Changers
Creatures
Instants
Sorceries
Utility Artifacts
Enchantments
Planeswalkers
Utility Lands
Mana Artifacts
Lands
Back to Top
Ancient Tomb
100%inclusion3 decks3 decks
91%synergy
Gaea's Cradle
100%inclusion3 decks3 decks
93%synergy
Consecrated Sphinx
100%inclusion3 decks3 decks
91%synergy
The One Ring
100%inclusion3 decks3 decks
92%synergy
Rhystic Study
100%inclusion3 decks3 decks
78%synergy
Mana Vault
100%inclusion3 decks3 decks
94%synergy
Force of Will
100%inclusion3 decks3 decks
90%synergy
Fierce Guardianship
100%inclusion3 decks3 decks
83%synergy
Cyclonic Rift
100%inclusion3 decks3 decks
74%synergy
Worldly Tutor
67%inclusion2 decks3 decks
51%synergy
Creatures
Craterhoof Behemoth
100%inclusion3 decks3 decks
91%synergy
Spark Double
100%inclusion3 decks3 decks
90%synergy
Birds of Paradise
100%inclusion3 decks3 decks
72%synergy
Delighted Halfling
100%inclusion3 decks3 decks
89%synergy
Junk Winder
67%inclusion2 decks3 decks
60%synergy
Sakashima of a Thousand Faces
67%inclusion2 decks3 decks
62%synergy
Circle of Dreams Druid
67%inclusion2 decks3 decks
64%synergy
Koma, World-Eater
67%inclusion2 decks3 decks
53%synergy
Enduring Vitality
67%inclusion2 decks3 decks
59%synergy
Aesi, Tyrant of Gyre Strait
67%inclusion2 decks3 decks
50%synergy
Kinnan, Bonder Prodigy
67%inclusion2 decks3 decks
63%synergy
Sakashima the Impostor
67%inclusion2 decks3 decks
64%synergy
Sylvan Safekeeper
67%inclusion2 decks3 decks
63%synergy
Arixmethes, Slumbering Isle
67%inclusion2 decks3 decks
53%synergy
Serpent of Yawning Depths
67%inclusion2 decks3 decks
60%synergy
Hullbreaker Horror
67%inclusion2 decks3 decks
49%synergy
Spellskite
67%inclusion2 decks3 decks
61%synergy
Gene Pollinator
50%inclusion1 decks2 decks
49%synergy
Bloom Tender
33%inclusion1 decks3 decks
29%synergy
Kiora's Follower
33%inclusion1 decks3 decks
18%synergy
Disciple of Freyalise
33%inclusion1 decks3 decks
29%synergy
Roaming Throne
33%inclusion1 decks3 decks
25%synergy
Arbor Elf
33%inclusion1 decks3 decks
27%synergy
Hydroelectric Specimen
33%inclusion1 decks3 decks
27%synergy
Pollywog Prodigy
33%inclusion1 decks3 decks
26%synergy
Displacer Kitten
33%inclusion1 decks3 decks
29%synergy
Peregrine Drake
33%inclusion1 decks3 decks
29%synergy
Adrix and Nev, Twincasters
33%inclusion1 decks3 decks
25%synergy
Garruk's Packleader
33%inclusion1 decks3 decks
31%synergy
Eternal Witness
33%inclusion1 decks3 decks
12%synergy
Elvish Mystic
33%inclusion1 decks3 decks
9%synergy
Seedborn Muse
33%inclusion1 decks3 decks
18%synergy
Saryth, the Viper's Fang
33%inclusion1 decks3 decks
32%synergy
Kira, Great Glass-Spinner
33%inclusion1 decks3 decks
33%synergy
Sowing Mycospawn
33%inclusion1 decks3 decks
32%synergy
Wandering Archaic
33%inclusion1 decks3 decks
28%synergy
Llanowar Elves
33%inclusion1 decks3 decks
6%synergy
Elvish Spirit Guide
33%inclusion1 decks3 decks
29%synergy
Willbreaker
33%inclusion1 decks3 decks
33%synergy
Esix, Fractal Bloom
33%inclusion1 decks3 decks
29%synergy
Vorinclex, Voice of Hunger
33%inclusion1 decks3 decks
30%synergy
Fyndhorn Elves
33%inclusion1 decks3 decks
18%synergy
Spawning Kraken
33%inclusion1 decks3 decks
26%synergy
Somberwald Sage
33%inclusion1 decks3 decks
32%synergy
Professor Hojo
33%inclusion1 decks3 decks
33%synergy
Instants
Force of Vigor
100%inclusion3 decks3 decks
95%synergy
Archdruid's Charm
67%inclusion2 decks3 decks
60%synergy
Krosan Grip
67%inclusion2 decks3 decks
59%synergy
Mana Drain
67%inclusion2 decks3 decks
51%synergy
Arcane Denial
67%inclusion2 decks3 decks
44%synergy
Force of Negation
67%inclusion2 decks3 decks
58%synergy
An Offer You Can't Refuse
67%inclusion2 decks3 decks
44%synergy
Heroic Intervention
67%inclusion2 decks3 decks
36%synergy
Crop Rotation
67%inclusion2 decks3 decks
53%synergy
Mindbreak Trap
67%inclusion2 decks3 decks
62%synergy
Legolas's Quick Reflexes
67%inclusion2 decks3 decks
64%synergy
Beast Within
67%inclusion2 decks3 decks
16%synergy
Flusterstorm
67%inclusion2 decks3 decks
60%synergy
Swan Song
67%inclusion2 decks3 decks
48%synergy
Counterspell
67%inclusion2 decks3 decks
17%synergy
Pact of Negation
67%inclusion2 decks3 decks
59%synergy
Mystical Tutor
67%inclusion2 decks3 decks
57%synergy
Sublime Epiphany
33%inclusion1 decks3 decks
31%synergy
Misdirection
33%inclusion1 decks3 decks
31%synergy
Rapid Hybridization
33%inclusion1 decks3 decks
7%synergy
Mental Misstep
33%inclusion1 decks3 decks
28%synergy
Return of the Wildspeaker
33%inclusion1 decks3 decks
23%synergy
Negate
33%inclusion1 decks3 decks
7%synergy
Second Harvest
33%inclusion1 decks3 decks
27%synergy
Chord of Calling
33%inclusion1 decks3 decks
26%synergy
Dispel
33%inclusion1 decks3 decks
29%synergy
Stifle
33%inclusion1 decks3 decks
33%synergy
Sink into Stupor
33%inclusion1 decks3 decks
22%synergy
Borne Upon a Wind
33%inclusion1 decks3 decks
32%synergy
Miscast
33%inclusion1 decks3 decks
31%synergy
Double Major
33%inclusion1 decks3 decks
25%synergy
Sorceries
Finale of Devastation
100%inclusion3 decks3 decks
88%synergy
Irenicus's Vile Duplication
67%inclusion2 decks3 decks
60%synergy
Green Sun's Zenith
67%inclusion2 decks3 decks
58%synergy
Triumph of the Hordes
67%inclusion2 decks3 decks
64%synergy
Eldritch Evolution
33%inclusion1 decks3 decks
30%synergy
Kodama's Reach
33%inclusion1 decks3 decks
-3%synergy
Three Visits
33%inclusion1 decks3 decks
10%synergy
Temporal Manipulation
33%inclusion1 decks3 decks
32%synergy
Rampant Growth
33%inclusion1 decks3 decks
-7%synergy
Cultivate
33%inclusion1 decks3 decks
-14%synergy
Whelming Wave
33%inclusion1 decks3 decks
22%synergy
Neoform
33%inclusion1 decks3 decks
29%synergy
Sea Gate Restoration
33%inclusion1 decks3 decks
28%synergy
Tempt with Discovery
33%inclusion1 decks3 decks
29%synergy
Explore
33%inclusion1 decks3 decks
13%synergy
Doppelgang
33%inclusion1 decks3 decks
27%synergy
Rite of Replication
33%inclusion1 decks3 decks
26%synergy
Utility Artifacts
The Great Henge
67%inclusion2 decks3 decks
58%synergy
Lightning Greaves
67%inclusion2 decks3 decks
45%synergy
Static Orb
33%inclusion1 decks3 decks
33%synergy
Sensei's Divining Top
33%inclusion1 decks3 decks
30%synergy
Winter Orb
33%inclusion1 decks3 decks
33%synergy
Skullclamp
33%inclusion1 decks3 decks
32%synergy
Helm of the Host
33%inclusion1 decks3 decks
28%synergy
Phyrexian Altar
33%inclusion1 decks3 decks
33%synergy
Whispersilk Cloak
33%inclusion1 decks3 decks
31%synergy
Enchantments
Mystic Remora
100%inclusion3 decks3 decks
85%synergy
Sylvan Library
100%inclusion3 decks3 decks
91%synergy
Doubling Season
67%inclusion2 decks3 decks
57%synergy
Parallel Lives
67%inclusion2 decks3 decks
61%synergy
Quest for Renewal
33%inclusion1 decks3 decks
32%synergy
Kindred Discovery
33%inclusion1 decks3 decks
23%synergy
Utopia Sprawl
33%inclusion1 decks3 decks
27%synergy
Verity Circle
33%inclusion1 decks3 decks
33%synergy
Carpet of Flowers
33%inclusion1 decks3 decks
31%synergy
Wild Growth
33%inclusion1 decks3 decks
25%synergy
Tribute to the World Tree
33%inclusion1 decks3 decks
27%synergy
Elemental Bond
33%inclusion1 decks3 decks
28%synergy
Defense of the Heart
33%inclusion1 decks3 decks
31%synergy
Planeswalkers
Oko, Thief of Crowns
33%inclusion1 decks3 decks
26%synergy
Utility Lands
Otawara, Soaring City
100%inclusion3 decks3 decks
81%synergy
Boseiju, Who Endures
100%inclusion3 decks3 decks
78%synergy
Minamo, School at Water's Edge
67%inclusion2 decks3 decks
60%synergy
Command Beacon
67%inclusion2 decks3 decks
63%synergy
Mistrise Village
67%inclusion2 decks3 decks
56%synergy
Yavimaya, Cradle of Growth
67%inclusion2 decks3 decks
45%synergy
Three Tree City
67%inclusion2 decks3 decks
62%synergy
Evendo, Waking Haven
50%inclusion1 decks2 decks
45%synergy
Boseiju, Who Shelters All
33%inclusion1 decks3 decks
33%synergy
Mosswort Bridge
33%inclusion1 decks3 decks
16%synergy
Urza's Saga
33%inclusion1 decks3 decks
28%synergy
Emergence Zone
33%inclusion1 decks3 decks
29%synergy
Nykthos, Shrine to Nyx
33%inclusion1 decks3 decks
31%synergy
Reliquary Tower
33%inclusion1 decks3 decks
-17%synergy
Dryad Arbor
33%inclusion1 decks3 decks
27%synergy
Mana Artifacts
Arcane Signet
100%inclusion3 decks3 decks
37%synergy
Sol Ring
100%inclusion3 decks3 decks
19%synergy
Lotus Petal
67%inclusion2 decks3 decks
60%synergy
Talisman of Curiosity
33%inclusion1 decks3 decks
12%synergy
Fellwar Stone
33%inclusion1 decks3 decks
24%synergy
Chrome Mox
33%inclusion1 decks3 decks
27%synergy
Lands
Command Tower
100%inclusion3 decks3 decks
15%synergy
Misty Rainforest
100%inclusion3 decks3 decks
69%synergy
Breeding Pool
100%inclusion3 decks3 decks
55%synergy
Tropical Island
100%inclusion3 decks3 decks
86%synergy
Mana Confluence
100%inclusion3 decks3 decks
94%synergy
Rejuvenating Springs
100%inclusion3 decks3 decks
56%synergy
Barkchannel Pathway
67%inclusion2 decks3 decks
46%synergy
Prismatic Vista
67%inclusion2 decks3 decks
59%synergy
Exotic Orchard
67%inclusion2 decks3 decks
43%synergy
Yavimaya Coast
67%inclusion2 decks3 decks
14%synergy
Island
67%inclusion2 decks3 decks
-29%synergy
Forest
67%inclusion2 decks3 decks
-29%synergy
Hedge Maze
67%inclusion2 decks3 decks
47%synergy
City of Brass
67%inclusion2 decks3 decks
61%synergy
Disciple of Freyalise
33%inclusion1 decks3 decks
29%synergy
Windswept Heath
33%inclusion1 decks3 decks
23%synergy
Hydroelectric Specimen
33%inclusion1 decks3 decks
27%synergy
Snow-Covered Island
33%inclusion1 decks3 decks
26%synergy
Verdant Catacombs
33%inclusion1 decks3 decks
24%synergy
Simic Growth Chamber
33%inclusion1 decks3 decks
-15%synergy
Sea Gate Restoration
33%inclusion1 decks3 decks
28%synergy
Snow-Covered Forest
33%inclusion1 decks3 decks
27%synergy
Wooded Foothills
33%inclusion1 decks3 decks
24%synergy
Waterlogged Grove
33%inclusion1 decks3 decks
13%synergy
Sink into Stupor
33%inclusion1 decks3 decks
22%synergy
Gemstone Caverns
33%inclusion1 decks3 decks
27%synergy
Scalding Tarn
33%inclusion1 decks3 decks
23%synergy
Hinterland Harbor
33%inclusion1 decks3 decks
-26%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