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

Alternate Names:

The Monstrous SerpentThe Monstrous Serpent

Koma, Cosmos Serpent
Rank #308
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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The Unagi of Kyoshi Island
100%inclusion1 decks1 decks
95%synergy
Ember Island Production
100%inclusion1 decks1 decks
99%synergy
The Walls of Ba Sing Se
100%inclusion1 decks1 decks
99%synergy
Game Changers
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
Consecrated Sphinx
33%inclusion1 decks3 decks
25%synergy
Fierce Guardianship
33%inclusion1 decks3 decks
16%synergy
Worldly Tutor
33%inclusion1 decks3 decks
18%synergy
Mox Diamond
33%inclusion1 decks3 decks
28%synergy
Creatures
Adrix and Nev, Twincasters
100%inclusion3 decks3 decks
92%synergy
Junk Winder
100%inclusion3 decks3 decks
93%synergy
Spark Double
100%inclusion3 decks3 decks
90%synergy
Koma, World-Eater
67%inclusion2 decks3 decks
53%synergy
Roaming Throne
67%inclusion2 decks3 decks
59%synergy
Elvish Mystic
67%inclusion2 decks3 decks
43%synergy
Aesi, Tyrant of Gyre Strait
67%inclusion2 decks3 decks
49%synergy
Llanowar Elves
67%inclusion2 decks3 decks
39%synergy
Sakashima of a Thousand Faces
67%inclusion2 decks3 decks
62%synergy
Arwen, Weaver of Hope
67%inclusion2 decks3 decks
64%synergy
Serpent of Yawning Depths
67%inclusion2 decks3 decks
60%synergy
Birds of Paradise
67%inclusion2 decks3 decks
39%synergy
Sakura-Tribe Elder
67%inclusion2 decks3 decks
47%synergy
Reclamation Sage
33%inclusion1 decks3 decks
19%synergy
Circle of Dreams Druid
33%inclusion1 decks3 decks
31%synergy
Selvala, Heart of the Wilds
33%inclusion1 decks3 decks
30%synergy
Bloodspore Thrinax
33%inclusion1 decks3 decks
33%synergy
Metallic Mimic
33%inclusion1 decks3 decks
28%synergy
Disciple of Freyalise
33%inclusion1 decks3 decks
29%synergy
Xolatoyac, the Smiling Flood
33%inclusion1 decks3 decks
26%synergy
Forgotten Ancient
33%inclusion1 decks3 decks
26%synergy
Inga and Esika
33%inclusion1 decks3 decks
31%synergy
Bane of Progress
33%inclusion1 decks3 decks
31%synergy
Hydroelectric Specimen
33%inclusion1 decks3 decks
27%synergy
Vorinclex, Monstrous Raider
33%inclusion1 decks3 decks
31%synergy
Skyserpent Seeker
33%inclusion1 decks3 decks
31%synergy
Murkfiend Liege
33%inclusion1 decks3 decks
19%synergy
Craterhoof Behemoth
33%inclusion1 decks3 decks
24%synergy
Pollywog Prodigy
33%inclusion1 decks3 decks
27%synergy
Sakashima the Impostor
33%inclusion1 decks3 decks
31%synergy
Faerie Mastermind
33%inclusion1 decks3 decks
29%synergy
Master Biomancer
33%inclusion1 decks3 decks
27%synergy
Zopandrel, Hunger Dominus
33%inclusion1 decks3 decks
31%synergy
Railway Brawler
33%inclusion1 decks3 decks
31%synergy
Ohran Frostfang
33%inclusion1 decks3 decks
30%synergy
Sword Coast Serpent
33%inclusion1 decks3 decks
32%synergy
Fyndhorn Elves
33%inclusion1 decks3 decks
18%synergy
Steelbane Hydra
33%inclusion1 decks3 decks
32%synergy
Thrummingbird
33%inclusion1 decks3 decks
28%synergy
Spawning Kraken
33%inclusion1 decks3 decks
26%synergy
Kami of Whispered Hopes
33%inclusion1 decks3 decks
27%synergy
Thunderfoot Baloth
33%inclusion1 decks3 decks
29%synergy
Delighted Halfling
33%inclusion1 decks3 decks
22%synergy
Instants
Counterspell
100%inclusion3 decks3 decks
50%synergy
Heroic Intervention
67%inclusion2 decks3 decks
36%synergy
Rapid Hybridization
33%inclusion1 decks3 decks
7%synergy
Stroke of Genius
33%inclusion1 decks3 decks
32%synergy
Spell Burst
33%inclusion1 decks3 decks
33%synergy
Return of the Wildspeaker
33%inclusion1 decks3 decks
23%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
26%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
Mana Drain
33%inclusion1 decks3 decks
18%synergy
Beast Within
33%inclusion1 decks3 decks
-17%synergy
Capsize
33%inclusion1 decks3 decks
32%synergy
Blessed Respite
33%inclusion1 decks3 decks
32%synergy
Arcane Denial
33%inclusion1 decks3 decks
11%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
69%synergy
Cultivate
100%inclusion3 decks3 decks
53%synergy
Three Visits
67%inclusion2 decks3 decks
43%synergy
Rampant Growth
67%inclusion2 decks3 decks
26%synergy
Pest Infestation
33%inclusion1 decks3 decks
32%synergy
Farseek
33%inclusion1 decks3 decks
8%synergy
Finale of Devastation
33%inclusion1 decks3 decks
22%synergy
Irenicus's Vile Duplication
33%inclusion1 decks3 decks
27%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
67%inclusion2 decks3 decks
58%synergy
Helm of the Host
67%inclusion2 decks3 decks
61%synergy
Swiftfoot Boots
67%inclusion2 decks3 decks
41%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
Mithril Coat
33%inclusion1 decks3 decks
32%synergy
Ozolith, the Shattered Spire
33%inclusion1 decks3 decks
27%synergy
Umbral Mantle
33%inclusion1 decks3 decks
31%synergy
Eldrazi Monument
33%inclusion1 decks3 decks
33%synergy
Emerald Medallion
33%inclusion1 decks3 decks
30%synergy
Staff of Domination
33%inclusion1 decks3 decks
32%synergy
Sword of the Animist
33%inclusion1 decks3 decks
32%synergy
Enchantments
Kindred Discovery
67%inclusion2 decks3 decks
57%synergy
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
Primal Vigor
67%inclusion2 decks3 decks
64%synergy
Elemental Bond
67%inclusion2 decks3 decks
61%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
Carpet of Flowers
33%inclusion1 decks3 decks
31%synergy
Garruk's Uprising
33%inclusion1 decks3 decks
17%synergy
Wizard Class
33%inclusion1 decks3 decks
28%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
Mystic Remora
33%inclusion1 decks3 decks
18%synergy
Sylvan Library
33%inclusion1 decks3 decks
24%synergy
Hardened Scales
33%inclusion1 decks3 decks
18%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
Lotus Vale
33%inclusion1 decks3 decks
33%synergy
Alchemist's Refuge
33%inclusion1 decks3 decks
16%synergy
Urza's Saga
33%inclusion1 decks3 decks
28%synergy
Nykthos, Shrine to Nyx
33%inclusion1 decks3 decks
31%synergy
Deserted Temple
33%inclusion1 decks3 decks
32%synergy
Reliquary Tower
33%inclusion1 decks3 decks
-16%synergy
Temple of the False God
33%inclusion1 decks3 decks
18%synergy
Otawara, Soaring City
33%inclusion1 decks3 decks
14%synergy
Rogue's Passage
33%inclusion1 decks3 decks
12%synergy
Mana Artifacts
Arcane Signet
100%inclusion3 decks3 decks
37%synergy
Sol Ring
100%inclusion3 decks3 decks
19%synergy
Decanter of Endless Water
100%inclusion3 decks3 decks
95%synergy
Simic Signet
67%inclusion2 decks3 decks
35%synergy
Thought Vessel
67%inclusion2 decks3 decks
46%synergy
Lotus Bloom
33%inclusion1 decks3 decks
33%synergy
Commander's Sphere
33%inclusion1 decks3 decks
25%synergy
Patchwork Banner
33%inclusion1 decks3 decks
30%synergy
Sol Talisman
33%inclusion1 decks3 decks
33%synergy
Talisman of Curiosity
33%inclusion1 decks3 decks
12%synergy
Fellwar Stone
33%inclusion1 decks3 decks
24%synergy
Lands
Command Tower
100%inclusion3 decks3 decks
15%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
Simic Growth Chamber
67%inclusion2 decks3 decks
18%synergy
Misty Rainforest
67%inclusion2 decks3 decks
35%synergy
Breeding Pool
67%inclusion2 decks3 decks
20%synergy
Myriad Landscape
67%inclusion2 decks3 decks
45%synergy
Vineglimmer Snarl
67%inclusion2 decks3 decks
28%synergy
Flooded Grove
67%inclusion2 decks3 decks
26%synergy
Dreamroot Cascade
67%inclusion2 decks3 decks
24%synergy
Blighted Woodland
33%inclusion1 decks3 decks
26%synergy
Fabled Passage
33%inclusion1 decks3 decks
19%synergy
Disciple of Freyalise
33%inclusion1 decks3 decks
29%synergy
Exotic Orchard
33%inclusion1 decks3 decks
9%synergy
Windswept Heath
33%inclusion1 decks3 decks
23%synergy
Yavimaya Coast
33%inclusion1 decks3 decks
-19%synergy
Hydroelectric Specimen
33%inclusion1 decks3 decks
27%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
Tropical Island
33%inclusion1 decks3 decks
19%synergy
Botanical Sanctum
33%inclusion1 decks3 decks
21%synergy
Evolving Wilds
33%inclusion1 decks3 decks
8%synergy
Path of Ancestry
33%inclusion1 decks3 decks
16%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
Polluted Delta
33%inclusion1 decks3 decks
23%synergy
Flooded Strand
33%inclusion1 decks3 decks
22%synergy
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