Koma, Cosmos Serpent (Commander) - Optimized Control

Alternate Names:

The Monstrous SerpentThe Monstrous Serpent

Background image for How To Play Sea Creatures Differently In Commander
Sikora
Nov 13, 2025
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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Archidekt
Commander Spellbook
Moxfield
Scryfall
Badgermole Cub
15%inclusion2 decks13 decks
10%synergy
The Cabbage Merchant
13%inclusion2 decks16 decks
11%synergy
Wan Shi Tong, Librarian
7.7%inclusion1 decks13 decks
2%synergy
The Unagi of Kyoshi Island
7.7%inclusion1 decks13 decks
2%synergy
Agna Qel'a
7.7%inclusion1 decks13 decks
7%synergy
High Synergy Cards
Adrix and Nev, Twincasters
81%inclusion26 decks32 decks
73%synergy
Parallel Lives
72%inclusion23 decks32 decks
66%synergy
Spark Double
72%inclusion23 decks32 decks
62%synergy
Whelming Wave
72%inclusion23 decks32 decks
61%synergy
Sakashima of a Thousand Faces
66%inclusion21 decks32 decks
61%synergy
Elemental Bond
66%inclusion21 decks32 decks
60%synergy
Mana Drain
72%inclusion23 decks32 decks
56%synergy
Mystic Remora
66%inclusion21 decks32 decks
50%synergy
Three Visits
72%inclusion23 decks32 decks
49%synergy
Koma, World-Eater
61%inclusion19 decks31 decks
48%synergy
Top Cards
Counterspell
78%inclusion25 decks32 decks
28%synergy
Heroic Intervention
72%inclusion23 decks32 decks
42%synergy
Birds of Paradise
72%inclusion23 decks32 decks
44%synergy
An Offer You Can't Refuse
69%inclusion22 decks32 decks
45%synergy
Nature's Lore
69%inclusion22 decks32 decks
38%synergy
Kodama's Reach
63%inclusion20 decks32 decks
27%synergy
Beast Within
63%inclusion20 decks32 decks
13%synergy
Cultivate
63%inclusion20 decks32 decks
16%synergy
Swan Song
59%inclusion19 decks32 decks
40%synergy
Doubling Season
56%inclusion18 decks32 decks
47%synergy
Game Changers
Rhystic Study
88%inclusion28 decks32 decks
66%synergy
Fierce Guardianship
88%inclusion28 decks32 decks
70%synergy
Cyclonic Rift
84%inclusion27 decks32 decks
59%synergy
Force of Will
50%inclusion16 decks32 decks
40%synergy
Seedborn Muse
47%inclusion15 decks32 decks
31%synergy
Worldly Tutor
47%inclusion15 decks32 decks
31%synergy
Mystical Tutor
47%inclusion15 decks32 decks
38%synergy
Consecrated Sphinx
44%inclusion14 decks32 decks
35%synergy
Ancient Tomb
41%inclusion13 decks32 decks
31%synergy
Mana Vault
31%inclusion10 decks32 decks
25%synergy
Creatures
Junk Winder
53%inclusion17 decks32 decks
47%synergy
Aesi, Tyrant of Gyre Strait
50%inclusion16 decks32 decks
33%synergy
Sakashima the Impostor
50%inclusion16 decks32 decks
47%synergy
Elvish Mystic
47%inclusion15 decks32 decks
23%synergy
Serpent of Yawning Depths
47%inclusion15 decks32 decks
40%synergy
Llanowar Elves
44%inclusion14 decks32 decks
16%synergy
Craterhoof Behemoth
41%inclusion13 decks32 decks
31%synergy
Enduring Vitality
39%inclusion12 decks31 decks
31%synergy
Eternal Witness
38%inclusion12 decks32 decks
17%synergy
Fyndhorn Elves
38%inclusion12 decks32 decks
22%synergy
Spawning Kraken
38%inclusion12 decks32 decks
30%synergy
Roaming Throne
34%inclusion11 decks32 decks
26%synergy
Sakura-Tribe Elder
34%inclusion11 decks32 decks
15%synergy
Delighted Halfling
28%inclusion9 decks32 decks
17%synergy
Garruk's Packleader
25%inclusion8 decks32 decks
23%synergy
Hullbreaker Horror
25%inclusion8 decks32 decks
7%synergy
Tatyova, Benthic Druid
22%inclusion7 decks32 decks
-9%synergy
Summon: Leviathan
20%inclusion5 decks25 decks
13%synergy
Coiling Oracle
19%inclusion6 decks32 decks
6%synergy
Azusa, Lost but Seeking
19%inclusion6 decks32 decks
5%synergy
Fanatic of Rhonas
19%inclusion6 decks32 decks
13%synergy
Kinnan, Bonder Prodigy
19%inclusion6 decks32 decks
15%synergy
Esix, Fractal Bloom
19%inclusion6 decks32 decks
15%synergy
Vorinclex, Voice of Hunger
19%inclusion6 decks32 decks
16%synergy
Arbor Elf
16%inclusion5 decks32 decks
9%synergy
Lotus Cobra
16%inclusion5 decks32 decks
2%synergy
Faerie Mastermind
16%inclusion5 decks32 decks
11%synergy
Tireless Provisioner
16%inclusion5 decks32 decks
0%synergy
Glasspool Mimic
16%inclusion5 decks32 decks
11%synergy
Arixmethes, Slumbering Isle
16%inclusion5 decks32 decks
2%synergy
Uro, Titan of Nature's Wrath
16%inclusion5 decks32 decks
6%synergy
Selvala, Heart of the Wilds
13%inclusion4 decks32 decks
9%synergy
Sphinx of the Second Sun
13%inclusion4 decks32 decks
11%synergy
Toski, Bearer of Secrets
13%inclusion4 decks32 decks
9%synergy
Ohran Frostfang
13%inclusion4 decks32 decks
9%synergy
Reclamation Sage
9.4%inclusion3 decks32 decks
-5%synergy
Peregrine Drake
9.4%inclusion3 decks32 decks
5%synergy
Curiosity Crafter
9.4%inclusion3 decks32 decks
6%synergy
Overlord of the Hauntwoods
9.4%inclusion3 decks32 decks
6%synergy
Tishana, Voice of Thunder
9.4%inclusion3 decks32 decks
4%synergy
Saryth, the Viper's Fang
9.4%inclusion3 decks32 decks
8%synergy
Hydroelectric Specimen
9.4%inclusion3 decks32 decks
3%synergy
Murkfiend Liege
9.4%inclusion3 decks32 decks
-5%synergy
Nezahal, Primal Tide
9.4%inclusion3 decks32 decks
-2%synergy
Gala Greeters
9.4%inclusion3 decks32 decks
8%synergy
Spellskite
9.4%inclusion3 decks32 decks
4%synergy
Ledger Shredder
9.4%inclusion3 decks32 decks
8%synergy
Enduring Curiosity
6.5%inclusion2 decks31 decks
3%synergy
Loot, Exuberant Explorer
6.5%inclusion2 decks31 decks
-1%synergy
Solemn Simulacrum
6.3%inclusion2 decks32 decks
0%synergy
Instants
Force of Negation
41%inclusion13 decks32 decks
32%synergy
Pongify
38%inclusion12 decks32 decks
13%synergy
Rapid Hybridization
38%inclusion12 decks32 decks
11%synergy
Double Major
34%inclusion11 decks32 decks
26%synergy
Pact of Negation
34%inclusion11 decks32 decks
27%synergy
Arcane Denial
31%inclusion10 decks32 decks
9%synergy
Growth Spiral
28%inclusion9 decks32 decks
-17%synergy
Chord of Calling
28%inclusion9 decks32 decks
20%synergy
Nature's Claim
25%inclusion8 decks32 decks
15%synergy
Sink into Stupor
25%inclusion8 decks32 decks
13%synergy
Crop Rotation
22%inclusion7 decks32 decks
9%synergy
Second Harvest
22%inclusion7 decks32 decks
16%synergy
Reality Shift
22%inclusion7 decks32 decks
7%synergy
Negate
19%inclusion6 decks32 decks
-7%synergy
Archdruid's Charm
19%inclusion6 decks32 decks
13%synergy
Force of Vigor
19%inclusion6 decks32 decks
14%synergy
Return of the Wildspeaker
16%inclusion5 decks32 decks
5%synergy
Mystic Reflection
16%inclusion5 decks32 decks
13%synergy
Harrow
16%inclusion5 decks32 decks
4%synergy
Strix Serenade
16%inclusion5 decks32 decks
12%synergy
Krosan Grip
13%inclusion4 decks32 decks
5%synergy
Consult the Star Charts
10%inclusion2 decks20 decks
8%synergy
Muddle the Mixture
9.4%inclusion3 decks32 decks
5%synergy
Eureka Moment
9.4%inclusion3 decks32 decks
-1%synergy
Disdainful Stroke
9.4%inclusion3 decks32 decks
8%synergy
Brainstorm
9.4%inclusion3 decks32 decks
-5%synergy
Stubborn Denial
9.4%inclusion3 decks32 decks
7%synergy
Tyvar's Stand
9.4%inclusion3 decks32 decks
7%synergy
Mindbreak Trap
9.4%inclusion3 decks32 decks
4%synergy
Return to Nature
9.4%inclusion3 decks32 decks
4%synergy
Resculpt
9.4%inclusion3 decks32 decks
3%synergy
Filter Out
9.4%inclusion3 decks32 decks
7%synergy
Wash Away
9.4%inclusion3 decks32 decks
8%synergy
Planar Genesis
9.4%inclusion3 decks32 decks
-1%synergy
Tamiyo's Safekeeping
9.4%inclusion3 decks32 decks
4%synergy
Misdirection
9.4%inclusion3 decks32 decks
7%synergy
Dramatic Reversal
9.4%inclusion3 decks32 decks
5%synergy
Whir of Invention
6.3%inclusion2 decks32 decks
4%synergy
Mental Misstep
6.3%inclusion2 decks32 decks
1%synergy
Snakeskin Veil
6.3%inclusion2 decks32 decks
0%synergy
Sublime Epiphany
6.3%inclusion2 decks32 decks
4%synergy
Legolas's Quick Reflexes
6.3%inclusion2 decks32 decks
4%synergy
Dispel
6.3%inclusion2 decks32 decks
2%synergy
Daze
6.3%inclusion2 decks32 decks
6%synergy
Slip Out the Back
6.3%inclusion2 decks32 decks
3%synergy
Flusterstorm
6.3%inclusion2 decks32 decks
-1%synergy
Saw It Coming
6.3%inclusion2 decks32 decks
5%synergy
Cryptic Command
6.3%inclusion2 decks32 decks
5%synergy
Snap
6.3%inclusion2 decks32 decks
2%synergy
Collective Resistance
6.3%inclusion2 decks32 decks
3%synergy
Sorceries
Rampant Growth
53%inclusion17 decks32 decks
13%synergy
Skyshroud Claim
44%inclusion14 decks32 decks
35%synergy
Irenicus's Vile Duplication
44%inclusion14 decks32 decks
38%synergy
Farseek
41%inclusion13 decks32 decks
16%synergy
Finale of Devastation
31%inclusion10 decks32 decks
19%synergy
Triumph of the Hordes
28%inclusion9 decks32 decks
25%synergy
Green Sun's Zenith
22%inclusion7 decks32 decks
13%synergy
Quantum Misalignment
22%inclusion7 decks32 decks
19%synergy
Fabricate
19%inclusion6 decks32 decks
12%synergy
Bala Ged Recovery
19%inclusion6 decks32 decks
9%synergy
Rishkar's Expertise
16%inclusion5 decks32 decks
7%synergy
Windfall
13%inclusion4 decks32 decks
8%synergy
Sea Gate Restoration
13%inclusion4 decks32 decks
7%synergy
Quasiduplicate
13%inclusion4 decks32 decks
10%synergy
Explosive Vegetation
13%inclusion4 decks32 decks
7%synergy
Migration Path
13%inclusion4 decks32 decks
9%synergy
Time Warp
13%inclusion4 decks32 decks
11%synergy
Into the North
9.4%inclusion3 decks32 decks
8%synergy
Tempt with Discovery
9.4%inclusion3 decks32 decks
5%synergy
Lórien Revealed
9.4%inclusion3 decks32 decks
7%synergy
Natural Order
9.4%inclusion3 decks32 decks
8%synergy
Personal Tutor
9.4%inclusion3 decks32 decks
8%synergy
Search for Tomorrow
9.4%inclusion3 decks32 decks
5%synergy
Expropriate
9.4%inclusion3 decks32 decks
8%synergy
Doppelgang
9.4%inclusion3 decks32 decks
3%synergy
Regrowth
9.4%inclusion3 decks32 decks
6%synergy
Solve the Equation
9.4%inclusion3 decks32 decks
7%synergy
Raise the Palisade
9.4%inclusion3 decks32 decks
3%synergy
Eldritch Evolution
6.3%inclusion2 decks32 decks
3%synergy
Flare of Cultivation
6.3%inclusion2 decks32 decks
4%synergy
Tooth and Nail
6.3%inclusion2 decks32 decks
5%synergy
Last March of the Ents
6.3%inclusion2 decks32 decks
3%synergy
Awaken the Woods
6.3%inclusion2 decks32 decks
2%synergy
Neoform
6.3%inclusion2 decks32 decks
2%synergy
Curse of the Swine
6.3%inclusion2 decks32 decks
-5%synergy
Temporal Mastery
6.3%inclusion2 decks32 decks
5%synergy
Temporal Manipulation
6.3%inclusion2 decks32 decks
5%synergy
Drawn from Dreams
6.3%inclusion2 decks32 decks
6%synergy
Harmonize
6.3%inclusion2 decks32 decks
1%synergy
Vastwood Surge
6.3%inclusion2 decks32 decks
5%synergy
Distant Melody
6.3%inclusion2 decks32 decks
3%synergy
Ravenform
6.3%inclusion2 decks32 decks
2%synergy
Open the Way
6.3%inclusion2 decks32 decks
4%synergy
Genesis Wave
6.3%inclusion2 decks32 decks
2%synergy
Rite of Replication
6.3%inclusion2 decks32 decks
-1%synergy
Utility Artifacts
Lightning Greaves
47%inclusion15 decks32 decks
25%synergy
Swiftfoot Boots
38%inclusion12 decks32 decks
12%synergy
Helm of the Host
34%inclusion11 decks32 decks
29%synergy
Static Orb
25%inclusion8 decks32 decks
25%synergy
Winter Orb
25%inclusion8 decks32 decks
25%synergy
The One Ring
25%inclusion8 decks32 decks
17%synergy
Mirror Box
16%inclusion5 decks32 decks
12%synergy
Isochron Scepter
13%inclusion4 decks32 decks
10%synergy
Sensei's Divining Top
9.4%inclusion3 decks32 decks
6%synergy
Skullclamp
9.4%inclusion3 decks32 decks
8%synergy
Combine Chrysalis
9.4%inclusion3 decks32 decks
5%synergy
Winter Moon
9.4%inclusion3 decks32 decks
9%synergy
Emerald Medallion
9.4%inclusion3 decks32 decks
6%synergy
Banner of Kinship
6.5%inclusion2 decks31 decks
5%synergy
Giant's Amulet
6.3%inclusion2 decks32 decks
6%synergy
Soul-Guide Lantern
6.3%inclusion2 decks32 decks
6%synergy
Moonsilver Key
6.3%inclusion2 decks32 decks
3%synergy
The Great Henge
6.3%inclusion2 decks32 decks
-3%synergy
Idol of Oblivion
6.3%inclusion2 decks32 decks
3%synergy
Commander's Plate
6.3%inclusion2 decks32 decks
6%synergy
Sapphire Medallion
6.3%inclusion2 decks32 decks
3%synergy
Enchantments
Tribute to the World Tree
53%inclusion17 decks32 decks
47%synergy
Sylvan Library
47%inclusion15 decks32 decks
38%synergy
Kindred Discovery
22%inclusion7 decks32 decks
12%synergy
Utopia Sprawl
19%inclusion6 decks32 decks
12%synergy
Wild Growth
19%inclusion6 decks32 decks
10%synergy
Verity Circle
16%inclusion5 decks32 decks
15%synergy
Primal Vigor
16%inclusion5 decks32 decks
13%synergy
Defense of the Heart
16%inclusion5 decks32 decks
13%synergy
Exploration
13%inclusion4 decks32 decks
-1%synergy
Song of the Dryads
13%inclusion4 decks32 decks
11%synergy
Kenrith's Transformation
13%inclusion4 decks32 decks
8%synergy
Moonlit Meditation
10%inclusion2 decks20 decks
9%synergy
Cryptolith Rite
9.4%inclusion3 decks32 decks
6%synergy
Back to Basics
9.4%inclusion3 decks32 decks
9%synergy
Carpet of Flowers
9.4%inclusion3 decks32 decks
7%synergy
Imprisoned in the Moon
9.4%inclusion3 decks32 decks
5%synergy
Unnatural Growth
9.4%inclusion3 decks32 decks
6%synergy
Opposition
9.4%inclusion3 decks32 decks
9%synergy
Paradox Haze
9.4%inclusion3 decks32 decks
9%synergy
Wizard Class
6.3%inclusion2 decks32 decks
1%synergy
Pattern of Rebirth
6.3%inclusion2 decks32 decks
6%synergy
Kiora Bests the Sea God
6.3%inclusion2 decks32 decks
5%synergy
Burgeoning
6.3%inclusion2 decks32 decks
-1%synergy
Stasis
6.3%inclusion2 decks32 decks
6%synergy
Dismiss into Dream
6.3%inclusion2 decks32 decks
6%synergy
Propaganda
6.3%inclusion2 decks32 decks
0%synergy
Growing Rites of Itlimoc
6.3%inclusion2 decks32 decks
0%synergy
Impostor Syndrome
6.3%inclusion1 decks16 decks
4%synergy
Planeswalkers
Oko, Thief of Crowns
50%inclusion16 decks32 decks
43%synergy
Narset, Parter of Veils
9.4%inclusion3 decks32 decks
8%synergy
Tezzeret the Seeker
6.3%inclusion2 decks32 decks
2%synergy
Utility Lands
Boseiju, Who Endures
63%inclusion20 decks32 decks
40%synergy
Reliquary Tower
63%inclusion20 decks32 decks
13%synergy
Otawara, Soaring City
38%inclusion12 decks32 decks
18%synergy
Mistrise Village
34%inclusion10 decks29 decks
24%synergy
Command Beacon
34%inclusion11 decks32 decks
30%synergy
Yavimaya, Cradle of Growth
34%inclusion11 decks32 decks
12%synergy
Evendo, Waking Haven
20%inclusion4 decks20 decks
15%synergy
Mystic Sanctuary
19%inclusion6 decks32 decks
6%synergy
Three Tree City
19%inclusion6 decks32 decks
14%synergy
Urza's Saga
16%inclusion5 decks32 decks
10%synergy
Gaea's Cradle
16%inclusion5 decks32 decks
8%synergy
Castle Garenbrig
16%inclusion5 decks32 decks
11%synergy
Alchemist's Refuge
13%inclusion4 decks32 decks
-5%synergy
Minamo, School at Water's Edge
9.4%inclusion3 decks32 decks
3%synergy
Mosswort Bridge
9.4%inclusion3 decks32 decks
-8%synergy
Thespian's Stage
9.4%inclusion3 decks32 decks
2%synergy
Temple of the False God
9.4%inclusion3 decks32 decks
-6%synergy
Dryad Arbor
9.4%inclusion3 decks32 decks
4%synergy
Rogue's Passage
9.4%inclusion3 decks32 decks
-12%synergy
Rivendell
6.3%inclusion2 decks32 decks
1%synergy
Boseiju, Who Shelters All
6.3%inclusion2 decks32 decks
6%synergy
Mirrorpool
6.3%inclusion2 decks32 decks
6%synergy
Scavenger Grounds
6.3%inclusion2 decks32 decks
2%synergy
Crystal Vein
6.3%inclusion2 decks32 decks
6%synergy
Emergence Zone
6.3%inclusion2 decks32 decks
2%synergy
Shifting Woodland
6.3%inclusion2 decks32 decks
0%synergy
Field of the Dead
6.3%inclusion2 decks32 decks
0%synergy
Cephalid Coliseum
6.3%inclusion2 decks32 decks
2%synergy
Homeward Path
6.3%inclusion2 decks32 decks
4%synergy
Castle Vantress
6.3%inclusion2 decks32 decks
-1%synergy
Jungle Basin
6.3%inclusion2 decks32 decks
4%synergy
Mana Artifacts
Sol Ring
94%inclusion30 decks32 decks
13%synergy
Arcane Signet
84%inclusion27 decks32 decks
21%synergy
Thought Vessel
41%inclusion13 decks32 decks
20%synergy
Simic Signet
38%inclusion12 decks32 decks
6%synergy
Talisman of Curiosity
38%inclusion12 decks32 decks
16%synergy
Lotus Petal
16%inclusion5 decks32 decks
9%synergy
Basalt Monolith
13%inclusion4 decks32 decks
6%synergy
Fellwar Stone
13%inclusion4 decks32 decks
3%synergy
Chrome Mox
9.4%inclusion3 decks32 decks
3%synergy
Mind Stone
6.3%inclusion2 decks32 decks
2%synergy
Lands
Command Tower
91%inclusion29 decks32 decks
5%synergy
Breeding Pool
91%inclusion29 decks32 decks
44%synergy
Forest
84%inclusion27 decks32 decks
-11%synergy
Rejuvenating Springs
84%inclusion27 decks32 decks
40%synergy
Island
81%inclusion26 decks32 decks
-14%synergy
Misty Rainforest
69%inclusion22 decks32 decks
37%synergy
Hinterland Harbor
69%inclusion22 decks32 decks
9%synergy
Yavimaya Coast
59%inclusion19 decks32 decks
7%synergy
Dreamroot Cascade
59%inclusion19 decks32 decks
17%synergy
Barkchannel Pathway
53%inclusion17 decks32 decks
33%synergy
Simic Growth Chamber
50%inclusion16 decks32 decks
2%synergy
Flooded Grove
44%inclusion14 decks32 decks
3%synergy
Waterlogged Grove
34%inclusion11 decks32 decks
14%synergy
Prismatic Vista
31%inclusion10 decks32 decks
24%synergy
Willowrush Verge
29%inclusion9 decks31 decks
12%synergy
Windswept Heath
28%inclusion9 decks32 decks
18%synergy
Tropical Island
28%inclusion9 decks32 decks
14%synergy
Hedge Maze
28%inclusion9 decks32 decks
8%synergy
Flooded Strand
28%inclusion9 decks32 decks
17%synergy
Fabled Passage
25%inclusion8 decks32 decks
10%synergy
Exotic Orchard
25%inclusion8 decks32 decks
1%synergy
Snow-Covered Island
25%inclusion8 decks32 decks
18%synergy
Snow-Covered Forest
25%inclusion8 decks32 decks
18%synergy
Sink into Stupor
25%inclusion8 decks32 decks
13%synergy
Rimewood Falls
22%inclusion7 decks32 decks
13%synergy
Myriad Landscape
19%inclusion6 decks32 decks
-3%synergy
Vineglimmer Snarl
19%inclusion6 decks32 decks
-20%synergy
Wooded Foothills
19%inclusion6 decks32 decks
9%synergy
Verdant Catacombs
19%inclusion6 decks32 decks
9%synergy
Scalding Tarn
19%inclusion6 decks32 decks
9%synergy
Mana Confluence
19%inclusion6 decks32 decks
13%synergy
Bala Ged Recovery
19%inclusion6 decks32 decks
9%synergy
Polluted Delta
19%inclusion6 decks32 decks
8%synergy
Botanical Sanctum
16%inclusion5 decks32 decks
3%synergy
Glasspool Mimic
16%inclusion5 decks32 decks
11%synergy
City of Brass
16%inclusion5 decks32 decks
10%synergy
Sea Gate Restoration
13%inclusion4 decks32 decks
7%synergy
Reflecting Pool
13%inclusion4 decks32 decks
9%synergy
Temple of Mystery
13%inclusion4 decks32 decks
-26%synergy
Evolving Wilds
13%inclusion4 decks32 decks
-13%synergy
Terramorphic Expanse
9.4%inclusion3 decks32 decks
-10%synergy
Tangled Islet
9.4%inclusion3 decks32 decks
-7%synergy
Hydroelectric Specimen
9.4%inclusion3 decks32 decks
3%synergy
Cavern of Souls
9.4%inclusion3 decks32 decks
4%synergy
Vibrant Cityscape
6.7%inclusion1 decks15 decks
4%synergy
Urza's Cave
6.3%inclusion2 decks32 decks
2%synergy
Gemstone Caverns
6.3%inclusion2 decks32 decks
0%synergy