Koma, Cosmos Serpent (Commander) - Expensive +1/+1 Counters

Alternate Names:

The Monstrous SerpentThe Monstrous Serpent

Koma, Cosmos Serpent
Rank #298
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.
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Consecrated Sphinx
67%inclusion2 decks3 decks
58%synergy
Rhystic Study
67%inclusion2 decks3 decks
45%synergy
Gaea's Cradle
67%inclusion2 decks3 decks
59%synergy
Cyclonic Rift
67%inclusion2 decks3 decks
41%synergy
Seedborn Muse
33%inclusion1 decks3 decks
18%synergy
Fierce Guardianship
33%inclusion1 decks3 decks
16%synergy
Worldly Tutor
33%inclusion1 decks3 decks
18%synergy
Creatures
Adrix and Nev, Twincasters
100%inclusion3 decks3 decks
92%synergy
Spark Double
100%inclusion3 decks3 decks
90%synergy
Sakashima of a Thousand Faces
100%inclusion3 decks3 decks
95%synergy
Bane of Progress
67%inclusion2 decks3 decks
65%synergy
Junk Winder
67%inclusion2 decks3 decks
60%synergy
Aesi, Tyrant of Gyre Strait
67%inclusion2 decks3 decks
49%synergy
Craterhoof Behemoth
67%inclusion2 decks3 decks
57%synergy
Railway Brawler
67%inclusion2 decks3 decks
65%synergy
Arwen, Weaver of Hope
67%inclusion2 decks3 decks
64%synergy
Serpent of Yawning Depths
67%inclusion2 decks3 decks
60%synergy
Reclamation Sage
33%inclusion1 decks3 decks
19%synergy
Zegana, Utopian Speaker
33%inclusion1 decks3 decks
25%synergy
Circle of Dreams Druid
33%inclusion1 decks3 decks
31%synergy
Selvala, Heart of the Wilds
33%inclusion1 decks3 decks
30%synergy
Koma, World-Eater
33%inclusion1 decks3 decks
20%synergy
Bloodspore Thrinax
33%inclusion1 decks3 decks
33%synergy
Forgotten Ancient
33%inclusion1 decks3 decks
26%synergy
Eternal Witness
33%inclusion1 decks3 decks
12%synergy
Prime Speaker Zegana
33%inclusion1 decks3 decks
23%synergy
Roaming Throne
33%inclusion1 decks3 decks
25%synergy
Elvish Mystic
33%inclusion1 decks3 decks
9%synergy
Avenger of Zendikar
33%inclusion1 decks3 decks
15%synergy
Saryth, the Viper's Fang
33%inclusion1 decks3 decks
32%synergy
Beast Whisperer
33%inclusion1 decks3 decks
24%synergy
Skyserpent Seeker
33%inclusion1 decks3 decks
30%synergy
Murkfiend Liege
33%inclusion1 decks3 decks
19%synergy
Llanowar Elves
33%inclusion1 decks3 decks
6%synergy
Sun Quan, Lord of Wu
33%inclusion1 decks3 decks
33%synergy
Avabruck Caretaker
33%inclusion1 decks3 decks
33%synergy
Ancient Bronze Dragon
33%inclusion1 decks3 decks
32%synergy
Sakashima the Impostor
33%inclusion1 decks3 decks
31%synergy
Master Biomancer
33%inclusion1 decks3 decks
27%synergy
Zopandrel, Hunger Dominus
33%inclusion1 decks3 decks
31%synergy
Managorger Hydra
33%inclusion1 decks3 decks
28%synergy
Ohran Frostfang
33%inclusion1 decks3 decks
30%synergy
Champion of Lambholt
33%inclusion1 decks3 decks
28%synergy
Lorescale Coatl
33%inclusion1 decks3 decks
32%synergy
Kodama of the East Tree
33%inclusion1 decks3 decks
28%synergy
Birds of Paradise
33%inclusion1 decks3 decks
6%synergy
Fyndhorn Elves
33%inclusion1 decks3 decks
18%synergy
Spellskite
33%inclusion1 decks3 decks
28%synergy
Steelbane Hydra
33%inclusion1 decks3 decks
32%synergy
Sakura-Tribe Elder
33%inclusion1 decks3 decks
14%synergy
Owlbear Shepherd
33%inclusion1 decks3 decks
33%synergy
Spawning Kraken
33%inclusion1 decks3 decks
26%synergy
Thunderfoot Baloth
33%inclusion1 decks3 decks
29%synergy
Instants
Heroic Intervention
100%inclusion3 decks3 decks
70%synergy
Return of the Wildspeaker
67%inclusion2 decks3 decks
56%synergy
Mana Drain
67%inclusion2 decks3 decks
51%synergy
Beast Within
67%inclusion2 decks3 decks
17%synergy
Counterspell
67%inclusion2 decks3 decks
17%synergy
Muddle the Mixture
33%inclusion1 decks3 decks
29%synergy
Stroke of Genius
33%inclusion1 decks3 decks
32%synergy
Spell Burst
33%inclusion1 decks3 decks
33%synergy
Growth Spiral
33%inclusion1 decks3 decks
-11%synergy
Power Sink
33%inclusion1 decks3 decks
33%synergy
Archdruid's Charm
33%inclusion1 decks3 decks
27%synergy
Krosan Grip
33%inclusion1 decks3 decks
25%synergy
Force of Vigor
33%inclusion1 decks3 decks
29%synergy
Smuggler's Surprise
33%inclusion1 decks3 decks
32%synergy
Blue Sun's Zenith
33%inclusion1 decks3 decks
30%synergy
Second Harvest
33%inclusion1 decks3 decks
27%synergy
Nature's Claim
33%inclusion1 decks3 decks
23%synergy
Capsize
33%inclusion1 decks3 decks
32%synergy
Archmage's Charm
33%inclusion1 decks3 decks
32%synergy
Berserk
33%inclusion1 decks3 decks
33%synergy
Blessed Respite
33%inclusion1 decks3 decks
32%synergy
Swan Song
33%inclusion1 decks3 decks
14%synergy
Noxious Revival
33%inclusion1 decks3 decks
27%synergy
Seedling Charm
33%inclusion1 decks3 decks
33%synergy
Rewind
33%inclusion1 decks3 decks
30%synergy
Simic Charm
33%inclusion1 decks3 decks
25%synergy
Spell Pierce
33%inclusion1 decks3 decks
30%synergy
Double Major
33%inclusion1 decks3 decks
25%synergy
Learn from the Past
33%inclusion1 decks3 decks
33%synergy
Sorceries
Kodama's Reach
100%inclusion3 decks3 decks
64%synergy
Nature's Lore
100%inclusion3 decks3 decks
70%synergy
Cultivate
100%inclusion3 decks3 decks
53%synergy
Three Visits
67%inclusion2 decks3 decks
44%synergy
Farseek
67%inclusion2 decks3 decks
42%synergy
Pest Infestation
33%inclusion1 decks3 decks
32%synergy
Finale of Devastation
33%inclusion1 decks3 decks
22%synergy
Harmonize
33%inclusion1 decks3 decks
28%synergy
Day's Undoing
33%inclusion1 decks3 decks
33%synergy
Rampant Growth
33%inclusion1 decks3 decks
-7%synergy
Irenicus's Vile Duplication
33%inclusion1 decks3 decks
27%synergy
Tezzeret's Gambit
33%inclusion1 decks3 decks
29%synergy
Overwhelming Stampede
33%inclusion1 decks3 decks
21%synergy
Whelming Wave
33%inclusion1 decks3 decks
22%synergy
Sylvan Scrying
33%inclusion1 decks3 decks
28%synergy
Rite of Replication
33%inclusion1 decks3 decks
26%synergy
Utility Artifacts
The Great Henge
100%inclusion3 decks3 decks
91%synergy
Lightning Greaves
67%inclusion2 decks3 decks
45%synergy
Elixir of Immortality
33%inclusion1 decks3 decks
32%synergy
Bow of Nylea
33%inclusion1 decks3 decks
33%synergy
Ozolith, the Shattered Spire
33%inclusion1 decks3 decks
27%synergy
Umbral Mantle
33%inclusion1 decks3 decks
31%synergy
Helm of the Host
33%inclusion1 decks3 decks
28%synergy
Eldrazi Monument
33%inclusion1 decks3 decks
33%synergy
Swiftfoot Boots
33%inclusion1 decks3 decks
8%synergy
Staff of Domination
33%inclusion1 decks3 decks
32%synergy
Enchantments
Doubling Season
67%inclusion2 decks3 decks
57%synergy
Beastmaster Ascension
67%inclusion2 decks3 decks
64%synergy
Imprisoned in the Moon
67%inclusion2 decks3 decks
63%synergy
Tribute to the World Tree
67%inclusion2 decks3 decks
60%synergy
Parallel Lives
67%inclusion2 decks3 decks
61%synergy
Mystic Remora
67%inclusion2 decks3 decks
51%synergy
Elemental Bond
67%inclusion2 decks3 decks
61%synergy
Kindred Discovery
33%inclusion1 decks3 decks
23%synergy
Utopia Sprawl
33%inclusion1 decks3 decks
27%synergy
Exploration
33%inclusion1 decks3 decks
20%synergy
Fight Rigging
33%inclusion1 decks3 decks
32%synergy
Reconnaissance Mission
33%inclusion1 decks3 decks
32%synergy
Court of Garenbrig
33%inclusion1 decks3 decks
31%synergy
Garruk's Uprising
33%inclusion1 decks3 decks
17%synergy
Simic Ascendancy
33%inclusion1 decks3 decks
20%synergy
Wild Growth
33%inclusion1 decks3 decks
25%synergy
Unnatural Growth
33%inclusion1 decks3 decks
30%synergy
Song of the Dryads
33%inclusion1 decks3 decks
32%synergy
Coastal Piracy
33%inclusion1 decks3 decks
32%synergy
Sylvan Library
33%inclusion1 decks3 decks
24%synergy
Primal Vigor
33%inclusion1 decks3 decks
30%synergy
Fertile Ground
33%inclusion1 decks3 decks
32%synergy
Growing Rites of Itlimoc
33%inclusion1 decks3 decks
27%synergy
Abundance
33%inclusion1 decks3 decks
31%synergy
Battles
Invasion of Ikoria
33%inclusion1 decks3 decks
29%synergy
Planeswalkers
Garruk Wildspeaker
33%inclusion1 decks3 decks
33%synergy
Oko, Thief of Crowns
33%inclusion1 decks3 decks
26%synergy
Utility Lands
Boseiju, Who Endures
67%inclusion2 decks3 decks
44%synergy
Reliquary Tower
67%inclusion2 decks3 decks
17%synergy
Otawara, Soaring City
67%inclusion2 decks3 decks
48%synergy
Alchemist's Refuge
33%inclusion1 decks3 decks
16%synergy
Nykthos, Shrine to Nyx
33%inclusion1 decks3 decks
31%synergy
Yavimaya, Cradle of Growth
33%inclusion1 decks3 decks
11%synergy
Deserted Temple
33%inclusion1 decks3 decks
32%synergy
Temple of the False God
33%inclusion1 decks3 decks
18%synergy
Rogue's Passage
33%inclusion1 decks3 decks
11%synergy
Mana Artifacts
Sol Ring
100%inclusion3 decks3 decks
19%synergy
Thought Vessel
100%inclusion3 decks3 decks
80%synergy
Arcane Signet
67%inclusion2 decks3 decks
4%synergy
Decanter of Endless Water
67%inclusion2 decks3 decks
61%synergy
Simic Signet
33%inclusion1 decks3 decks
1%synergy
Patchwork Banner
33%inclusion1 decks3 decks
30%synergy
Chromatic Lantern
33%inclusion1 decks3 decks
31%synergy
Talisman of Curiosity
33%inclusion1 decks3 decks
12%synergy
Liquimetal Torque
33%inclusion1 decks3 decks
32%synergy
Mind Stone
33%inclusion1 decks3 decks
29%synergy
Lands
Command Tower
100%inclusion3 decks3 decks
15%synergy
Breeding Pool
100%inclusion3 decks3 decks
54%synergy
Island
100%inclusion3 decks3 decks
5%synergy
Forest
100%inclusion3 decks3 decks
5%synergy
Rejuvenating Springs
100%inclusion3 decks3 decks
56%synergy
Hinterland Harbor
100%inclusion3 decks3 decks
41%synergy
Misty Rainforest
67%inclusion2 decks3 decks
35%synergy
Vineglimmer Snarl
67%inclusion2 decks3 decks
28%synergy
Tropical Island
67%inclusion2 decks3 decks
52%synergy
Dreamroot Cascade
67%inclusion2 decks3 decks
25%synergy
Blighted Woodland
33%inclusion1 decks3 decks
26%synergy
Simic Growth Chamber
33%inclusion1 decks3 decks
-15%synergy
Fabled Passage
33%inclusion1 decks3 decks
19%synergy
Myriad Landscape
33%inclusion1 decks3 decks
11%synergy
Windswept Heath
33%inclusion1 decks3 decks
23%synergy
Yavimaya Coast
33%inclusion1 decks3 decks
-19%synergy
Wooded Foothills
33%inclusion1 decks3 decks
24%synergy
Verdant Catacombs
33%inclusion1 decks3 decks
24%synergy
Reflecting Pool
33%inclusion1 decks3 decks
30%synergy
Evolving Wilds
33%inclusion1 decks3 decks
8%synergy
Willowrush Verge
33%inclusion1 decks3 decks
17%synergy
Hedge Maze
33%inclusion1 decks3 decks
14%synergy
Scalding Tarn
33%inclusion1 decks3 decks
23%synergy
Forbidden Orchard
33%inclusion1 decks3 decks
32%synergy
Flooded Grove
33%inclusion1 decks3 decks
-8%synergy
Polluted Delta
33%inclusion1 decks3 decks
23%synergy
Flooded Strand
33%inclusion1 decks3 decks
22%synergy
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