Koma, Cosmos Serpent (Commander) - Optimized Clones

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.
Deck Filters
Cardsphere
Archidekt
Commander Spellbook
Moxfield
Scryfall
Wan Shi Tong, Librarian
9.1%inclusion1 decks11 decks
4%synergy
Badgermole Cub
9.1%inclusion1 decks11 decks
4%synergy
Agna Qel'a
9.1%inclusion1 decks11 decks
8%synergy
The Cabbage Merchant
7.7%inclusion1 decks13 decks
6%synergy
High Synergy Cards
Sakashima of a Thousand Faces
91%inclusion30 decks33 decks
86%synergy
Adrix and Nev, Twincasters
88%inclusion29 decks33 decks
79%synergy
Spark Double
88%inclusion29 decks33 decks
78%synergy
Parallel Lives
76%inclusion25 decks33 decks
70%synergy
Whelming Wave
79%inclusion26 decks33 decks
67%synergy
Sakashima the Impostor
70%inclusion23 decks33 decks
67%synergy
Doubling Season
70%inclusion23 decks33 decks
60%synergy
Mana Drain
76%inclusion25 decks33 decks
60%synergy
Elemental Bond
64%inclusion21 decks33 decks
58%synergy
Serpent of Yawning Depths
64%inclusion21 decks33 decks
57%synergy
Top Cards
Counterspell
79%inclusion26 decks33 decks
29%synergy
Cultivate
76%inclusion25 decks33 decks
29%synergy
Birds of Paradise
73%inclusion24 decks33 decks
45%synergy
Koma, World-Eater
70%inclusion23 decks33 decks
56%synergy
Heroic Intervention
70%inclusion23 decks33 decks
40%synergy
Kodama's Reach
67%inclusion22 decks33 decks
30%synergy
Three Visits
67%inclusion22 decks33 decks
44%synergy
Aesi, Tyrant of Gyre Strait
67%inclusion22 decks33 decks
49%synergy
Swan Song
64%inclusion21 decks33 decks
45%synergy
Farseek
61%inclusion20 decks33 decks
36%synergy
Game Changers
Rhystic Study
82%inclusion27 decks33 decks
60%synergy
Cyclonic Rift
82%inclusion27 decks33 decks
56%synergy
Fierce Guardianship
76%inclusion25 decks33 decks
59%synergy
Seedborn Muse
48%inclusion16 decks33 decks
33%synergy
Consecrated Sphinx
45%inclusion15 decks33 decks
37%synergy
Worldly Tutor
45%inclusion15 decks33 decks
30%synergy
Ancient Tomb
39%inclusion13 decks33 decks
30%synergy
Mystical Tutor
39%inclusion13 decks33 decks
30%synergy
Force of Will
36%inclusion12 decks33 decks
26%synergy
Gaea's Cradle
18%inclusion6 decks33 decks
11%synergy
Creatures
Llanowar Elves
55%inclusion18 decks33 decks
27%synergy
Spawning Kraken
55%inclusion18 decks33 decks
47%synergy
Eternal Witness
52%inclusion17 decks33 decks
30%synergy
Craterhoof Behemoth
48%inclusion16 decks33 decks
39%synergy
Elvish Mystic
45%inclusion15 decks33 decks
21%synergy
Junk Winder
45%inclusion15 decks33 decks
39%synergy
Ohran Frostfang
39%inclusion13 decks33 decks
36%synergy
Roaming Throne
33%inclusion11 decks33 decks
25%synergy
Fyndhorn Elves
33%inclusion11 decks33 decks
18%synergy
Garruk's Packleader
30%inclusion10 decks33 decks
28%synergy
Enduring Vitality
30%inclusion10 decks33 decks
23%synergy
Azusa, Lost but Seeking
30%inclusion10 decks33 decks
16%synergy
Sakura-Tribe Elder
30%inclusion10 decks33 decks
11%synergy
Tatyova, Benthic Druid
27%inclusion9 decks33 decks
-4%synergy
Arixmethes, Slumbering Isle
27%inclusion9 decks33 decks
14%synergy
Summon: Leviathan
27%inclusion6 decks22 decks
20%synergy
Toski, Bearer of Secrets
24%inclusion8 decks33 decks
21%synergy
Uro, Titan of Nature's Wrath
24%inclusion8 decks33 decks
14%synergy
Coiling Oracle
21%inclusion7 decks33 decks
8%synergy
Fanatic of Rhonas
21%inclusion7 decks33 decks
15%synergy
Delighted Halfling
21%inclusion7 decks33 decks
10%synergy
Selvala, Heart of the Wilds
18%inclusion6 decks33 decks
15%synergy
Curiosity Crafter
15%inclusion5 decks33 decks
12%synergy
Saryth, the Viper's Fang
15%inclusion5 decks33 decks
13%synergy
Murkfiend Liege
15%inclusion5 decks33 decks
1%synergy
Esix, Fractal Bloom
15%inclusion5 decks33 decks
11%synergy
Tireless Provisioner
15%inclusion5 decks33 decks
0%synergy
Dryad of the Ilysian Grove
15%inclusion5 decks33 decks
5%synergy
Hullbreaker Horror
15%inclusion5 decks33 decks
-3%synergy
Inga and Esika
12%inclusion4 decks33 decks
9%synergy
Kinnan, Bonder Prodigy
12%inclusion4 decks33 decks
9%synergy
Archetype of Imagination
12%inclusion4 decks33 decks
8%synergy
Scute Swarm
12%inclusion4 decks33 decks
-9%synergy
Glasspool Mimic
12%inclusion4 decks33 decks
8%synergy
Reclamation Sage
9.1%inclusion3 decks33 decks
-5%synergy
Troyan, Gutsy Explorer
9.1%inclusion3 decks33 decks
6%synergy
Octomancer
9.1%inclusion3 decks33 decks
4%synergy
Arbor Elf
9.1%inclusion3 decks33 decks
3%synergy
Slinn Voda, the Rising Deep
9.1%inclusion3 decks33 decks
3%synergy
Lotus Cobra
9.1%inclusion3 decks33 decks
-5%synergy
Enduring Curiosity
9.1%inclusion3 decks33 decks
6%synergy
Faerie Mastermind
9.1%inclusion3 decks33 decks
5%synergy
Master Biomancer
9.1%inclusion3 decks33 decks
3%synergy
Nezahal, Primal Tide
9.1%inclusion3 decks33 decks
-2%synergy
Vorinclex, Voice of Hunger
9.1%inclusion3 decks33 decks
6%synergy
Rashmi, Eternities Crafter
6.1%inclusion2 decks33 decks
3%synergy
Solemn Simulacrum
6.1%inclusion2 decks33 decks
0%synergy
Pirated Copy
6.1%inclusion2 decks33 decks
6%synergy
Collector Ouphe
6.1%inclusion2 decks33 decks
5%synergy
Kiora's Follower
6.1%inclusion2 decks33 decks
-9%synergy
Instants
An Offer You Can't Refuse
58%inclusion19 decks33 decks
34%synergy
Beast Within
58%inclusion19 decks33 decks
8%synergy
Double Major
58%inclusion19 decks33 decks
49%synergy
Pongify
48%inclusion16 decks33 decks
24%synergy
Growth Spiral
42%inclusion14 decks33 decks
-2%synergy
Negate
39%inclusion13 decks33 decks
13%synergy
Rapid Hybridization
36%inclusion12 decks33 decks
10%synergy
Second Harvest
36%inclusion12 decks33 decks
30%synergy
Arcane Denial
30%inclusion10 decks33 decks
8%synergy
Force of Negation
27%inclusion9 decks33 decks
19%synergy
Sink into Stupor
21%inclusion7 decks33 decks
10%synergy
Tamiyo's Safekeeping
21%inclusion7 decks33 decks
15%synergy
Pact of Negation
21%inclusion7 decks33 decks
14%synergy
Mystic Reflection
18%inclusion6 decks33 decks
16%synergy
Force of Vigor
18%inclusion6 decks33 decks
14%synergy
Chord of Calling
18%inclusion6 decks33 decks
10%synergy
Return of the Wildspeaker
15%inclusion5 decks33 decks
5%synergy
Crop Rotation
15%inclusion5 decks33 decks
2%synergy
Krosan Grip
15%inclusion5 decks33 decks
7%synergy
Nature's Claim
15%inclusion5 decks33 decks
5%synergy
Strix Serenade
15%inclusion5 decks33 decks
11%synergy
Noxious Revival
15%inclusion5 decks33 decks
9%synergy
Voidslime
15%inclusion5 decks33 decks
10%synergy
Brainstorm
12%inclusion4 decks33 decks
-2%synergy
Archdruid's Charm
12%inclusion4 decks33 decks
6%synergy
Reality Shift
12%inclusion4 decks33 decks
-2%synergy
Resculpt
12%inclusion4 decks33 decks
6%synergy
Fog
9.1%inclusion3 decks33 decks
6%synergy
Three Steps Ahead
9.1%inclusion3 decks33 decks
6%synergy
Sublime Epiphany
9.1%inclusion3 decks33 decks
7%synergy
Harrow
9.1%inclusion3 decks33 decks
-3%synergy
Return to Nature
9.1%inclusion3 decks33 decks
4%synergy
Cryptic Command
9.1%inclusion3 decks33 decks
8%synergy
Planar Genesis
9.1%inclusion3 decks33 decks
-2%synergy
March of Swirling Mist
9.1%inclusion3 decks33 decks
5%synergy
Muddle the Mixture
6.1%inclusion2 decks33 decks
2%synergy
Eureka Moment
6.1%inclusion2 decks33 decks
-5%synergy
Disdainful Stroke
6.1%inclusion2 decks33 decks
4%synergy
Snakeskin Veil
6.1%inclusion2 decks33 decks
0%synergy
Stubborn Denial
6.1%inclusion2 decks33 decks
3%synergy
Tyvar's Stand
6.1%inclusion2 decks33 decks
3%synergy
Flare of Denial
6.1%inclusion2 decks33 decks
3%synergy
Legolas's Quick Reflexes
6.1%inclusion2 decks33 decks
3%synergy
Daze
6.1%inclusion2 decks33 decks
5%synergy
Aetherize
6.1%inclusion2 decks33 decks
-6%synergy
Disallow
6.1%inclusion2 decks33 decks
4%synergy
Saw It Coming
6.1%inclusion2 decks33 decks
5%synergy
Wash Away
6.1%inclusion2 decks33 decks
4%synergy
Collective Resistance
6.1%inclusion2 decks33 decks
3%synergy
Simic Charm
6.1%inclusion2 decks33 decks
-2%synergy
Sorceries
Irenicus's Vile Duplication
58%inclusion19 decks33 decks
51%synergy
Nature's Lore
55%inclusion18 decks33 decks
24%synergy
Rampant Growth
52%inclusion17 decks33 decks
11%synergy
Quantum Misalignment
36%inclusion12 decks33 decks
33%synergy
Finale of Devastation
36%inclusion12 decks33 decks
25%synergy
Skyshroud Claim
30%inclusion10 decks33 decks
21%synergy
Bala Ged Recovery
30%inclusion10 decks33 decks
20%synergy
Windfall
18%inclusion6 decks33 decks
14%synergy
Triumph of the Hordes
18%inclusion6 decks33 decks
15%synergy
Sea Gate Restoration
18%inclusion6 decks33 decks
13%synergy
Regrowth
18%inclusion6 decks33 decks
14%synergy
Bridgeworks Battle
12%inclusion4 decks33 decks
7%synergy
Explore
12%inclusion4 decks33 decks
-8%synergy
Overwhelming Stampede
12%inclusion4 decks33 decks
0%synergy
Rite of Replication
12%inclusion4 decks33 decks
5%synergy
Green Sun's Zenith
9.1%inclusion3 decks33 decks
0%synergy
Flare of Cultivation
9.1%inclusion3 decks33 decks
7%synergy
Quasiduplicate
9.1%inclusion3 decks33 decks
6%synergy
Rishkar's Expertise
9.1%inclusion3 decks33 decks
1%synergy
Explosive Vegetation
9.1%inclusion3 decks33 decks
3%synergy
Open the Way
9.1%inclusion3 decks33 decks
7%synergy
Into the North
6.1%inclusion2 decks33 decks
5%synergy
Awaken the Woods
6.1%inclusion2 decks33 decks
1%synergy
Fabricate
6.1%inclusion2 decks33 decks
-1%synergy
Tempt with Discovery
6.1%inclusion2 decks33 decks
2%synergy
Curse of the Swine
6.1%inclusion2 decks33 decks
-5%synergy
Lórien Revealed
6.1%inclusion2 decks33 decks
3%synergy
Vastwood Surge
6.1%inclusion2 decks33 decks
5%synergy
Pick Your Poison
6.1%inclusion2 decks33 decks
5%synergy
Expropriate
6.1%inclusion2 decks33 decks
5%synergy
Search for Tomorrow
6.1%inclusion2 decks33 decks
1%synergy
Ezuri's Predation
6.1%inclusion2 decks33 decks
-2%synergy
Shamanic Revelation
6.1%inclusion2 decks33 decks
1%synergy
Doppelgang
6.1%inclusion2 decks33 decks
0%synergy
Migration Path
6.1%inclusion2 decks33 decks
3%synergy
Ravenform
6.1%inclusion2 decks33 decks
2%synergy
Time Warp
6.1%inclusion2 decks33 decks
4%synergy
Harvest Season
6.1%inclusion2 decks33 decks
4%synergy
Utility Artifacts
Swiftfoot Boots
48%inclusion16 decks33 decks
23%synergy
Lightning Greaves
48%inclusion16 decks33 decks
27%synergy
Helm of the Host
42%inclusion14 decks33 decks
37%synergy
Mirror Box
21%inclusion7 decks33 decks
18%synergy
The Great Henge
21%inclusion7 decks33 decks
12%synergy
Combine Chrysalis
18%inclusion6 decks33 decks
14%synergy
Skullclamp
15%inclusion5 decks33 decks
14%synergy
Eldrazi Monument
15%inclusion5 decks33 decks
15%synergy
The One Ring
12%inclusion4 decks33 decks
4%synergy
Idol of Oblivion
12%inclusion4 decks33 decks
9%synergy
Static Orb
9.1%inclusion3 decks33 decks
9%synergy
Winter Orb
9.1%inclusion3 decks33 decks
9%synergy
Emerald Medallion
9.1%inclusion3 decks33 decks
6%synergy
Sapphire Medallion
9.1%inclusion3 decks33 decks
6%synergy
Lithoform Engine
6.1%inclusion2 decks33 decks
5%synergy
Mirage Mirror
6.1%inclusion2 decks33 decks
-1%synergy
Nevinyrral's Disk
6.1%inclusion2 decks33 decks
6%synergy
Commander's Plate
6.1%inclusion2 decks33 decks
6%synergy
Enchantments
Mystic Remora
58%inclusion19 decks33 decks
42%synergy
Sylvan Library
45%inclusion15 decks33 decks
36%synergy
Tribute to the World Tree
42%inclusion14 decks33 decks
36%synergy
Beastmaster Ascension
24%inclusion8 decks33 decks
21%synergy
Kindred Discovery
21%inclusion7 decks33 decks
11%synergy
Primal Vigor
21%inclusion7 decks33 decks
18%synergy
Defense of the Heart
21%inclusion7 decks33 decks
19%synergy
Growing Rites of Itlimoc
21%inclusion7 decks33 decks
15%synergy
Exploration
18%inclusion6 decks33 decks
5%synergy
Unnatural Growth
18%inclusion6 decks33 decks
15%synergy
Cryptolith Rite
15%inclusion5 decks33 decks
12%synergy
Wild Growth
15%inclusion5 decks33 decks
6%synergy
Utopia Sprawl
12%inclusion4 decks33 decks
6%synergy
Garruk's Uprising
12%inclusion4 decks33 decks
-4%synergy
Burgeoning
12%inclusion4 decks33 decks
5%synergy
Kenrith's Transformation
12%inclusion4 decks33 decks
8%synergy
Opposition
12%inclusion4 decks33 decks
12%synergy
Moonlit Meditation
12%inclusion2 decks17 decks
10%synergy
Imprisoned in the Moon
9.1%inclusion3 decks33 decks
5%synergy
Extravagant Replication
9.1%inclusion3 decks33 decks
7%synergy
Wilderness Reclamation
9.1%inclusion3 decks33 decks
0%synergy
Dismiss into Dream
9.1%inclusion3 decks33 decks
9%synergy
Paradox Haze
9.1%inclusion3 decks33 decks
9%synergy
Impostor Syndrome
7.7%inclusion1 decks13 decks
6%synergy
Dissipation Field
6.1%inclusion2 decks33 decks
6%synergy
Wizard Class
6.1%inclusion2 decks33 decks
1%synergy
Rites of Flourishing
6.1%inclusion2 decks33 decks
4%synergy
Omniscience
6.1%inclusion2 decks33 decks
1%synergy
Song of the Dryads
6.1%inclusion2 decks33 decks
4%synergy
Battles
Invasion of Zendikar
6.1%inclusion2 decks33 decks
4%synergy
Planeswalkers
Oko, Thief of Crowns
55%inclusion18 decks33 decks
47%synergy
Utility Lands
Reliquary Tower
79%inclusion26 decks33 decks
29%synergy
Boseiju, Who Endures
58%inclusion19 decks33 decks
35%synergy
Command Beacon
39%inclusion13 decks33 decks
35%synergy
Yavimaya, Cradle of Growth
39%inclusion13 decks33 decks
17%synergy
Mistrise Village
35%inclusion9 decks26 decks
24%synergy
Evendo, Waking Haven
28%inclusion5 decks18 decks
22%synergy
Otawara, Soaring City
27%inclusion9 decks33 decks
8%synergy
Temple of the False God
24%inclusion8 decks33 decks
9%synergy
Three Tree City
24%inclusion8 decks33 decks
19%synergy
Mystic Sanctuary
15%inclusion5 decks33 decks
3%synergy
Alchemist's Refuge
15%inclusion5 decks33 decks
-2%synergy
Homeward Path
12%inclusion4 decks33 decks
10%synergy
Castle Garenbrig
12%inclusion4 decks33 decks
8%synergy
Rogue's Passage
12%inclusion4 decks33 decks
-10%synergy
Urza's Saga
9.1%inclusion3 decks33 decks
4%synergy
Scavenger Grounds
9.1%inclusion3 decks33 decks
5%synergy
Shifting Woodland
9.1%inclusion3 decks33 decks
2%synergy
Wasteland
6.1%inclusion2 decks33 decks
5%synergy
Rivendell
6.1%inclusion2 decks33 decks
0%synergy
Coral Atoll
6.1%inclusion2 decks33 decks
3%synergy
Yavimaya Hollow
6.1%inclusion2 decks33 decks
5%synergy
Mirrorpool
6.1%inclusion2 decks33 decks
5%synergy
Glacial Chasm
6.1%inclusion2 decks33 decks
5%synergy
Field of the Dead
6.1%inclusion2 decks33 decks
0%synergy
Thespian's Stage
6.1%inclusion2 decks33 decks
-1%synergy
Lumbering Falls
6.1%inclusion2 decks33 decks
-1%synergy
Strip Mine
6.1%inclusion2 decks33 decks
3%synergy
Jungle Basin
6.1%inclusion2 decks33 decks
4%synergy
Mana Artifacts
Sol Ring
100%inclusion33 decks33 decks
19%synergy
Arcane Signet
88%inclusion29 decks33 decks
25%synergy
Talisman of Curiosity
30%inclusion10 decks33 decks
9%synergy
Thought Vessel
30%inclusion10 decks33 decks
10%synergy
Simic Signet
27%inclusion9 decks33 decks
-5%synergy
Basalt Monolith
15%inclusion5 decks33 decks
8%synergy
Mana Vault
15%inclusion5 decks33 decks
9%synergy
Fellwar Stone
9.1%inclusion3 decks33 decks
0%synergy
Thran Dynamo
9.1%inclusion3 decks33 decks
6%synergy
Commander's Sphere
6.1%inclusion2 decks33 decks
-2%synergy
Chromatic Lantern
6.1%inclusion2 decks33 decks
4%synergy
Chrome Mox
6.1%inclusion2 decks33 decks
-1%synergy
Lands
Command Tower
100%inclusion33 decks33 decks
15%synergy
Forest
91%inclusion30 decks33 decks
-4%synergy
Island
88%inclusion29 decks33 decks
-8%synergy
Breeding Pool
85%inclusion28 decks33 decks
39%synergy
Rejuvenating Springs
76%inclusion25 decks33 decks
32%synergy
Dreamroot Cascade
73%inclusion24 decks33 decks
31%synergy
Misty Rainforest
67%inclusion22 decks33 decks
35%synergy
Yavimaya Coast
64%inclusion21 decks33 decks
11%synergy
Hinterland Harbor
64%inclusion21 decks33 decks
4%synergy
Barkchannel Pathway
58%inclusion19 decks33 decks
37%synergy
Simic Growth Chamber
52%inclusion17 decks33 decks
3%synergy
Flooded Grove
48%inclusion16 decks33 decks
8%synergy
Willowrush Verge
41%inclusion13 decks32 decks
24%synergy
Tropical Island
33%inclusion11 decks33 decks
19%synergy
Bala Ged Recovery
30%inclusion10 decks33 decks
20%synergy
Fabled Passage
27%inclusion9 decks33 decks
13%synergy
Hedge Maze
27%inclusion9 decks33 decks
8%synergy
Exotic Orchard
24%inclusion8 decks33 decks
0%synergy
Vineglimmer Snarl
21%inclusion7 decks33 decks
-17%synergy
Waterlogged Grove
21%inclusion7 decks33 decks
1%synergy
Sink into Stupor
21%inclusion7 decks33 decks
10%synergy
Myriad Landscape
18%inclusion6 decks33 decks
-4%synergy
Sea Gate Restoration
18%inclusion6 decks33 decks
13%synergy
Snow-Covered Island
18%inclusion6 decks33 decks
11%synergy
Snow-Covered Forest
18%inclusion6 decks33 decks
11%synergy
Reflecting Pool
18%inclusion6 decks33 decks
15%synergy
Botanical Sanctum
18%inclusion6 decks33 decks
6%synergy
Rimewood Falls
18%inclusion6 decks33 decks
9%synergy
Evolving Wilds
18%inclusion6 decks33 decks
-7%synergy
Windswept Heath
15%inclusion5 decks33 decks
5%synergy
Temple of Mystery
15%inclusion5 decks33 decks
-23%synergy
Terramorphic Expanse
12%inclusion4 decks33 decks
-8%synergy
Verdant Catacombs
12%inclusion4 decks33 decks
3%synergy
Cavern of Souls
12%inclusion4 decks33 decks
6%synergy
Bridgeworks Battle
12%inclusion4 decks33 decks
7%synergy
Glasspool Mimic
12%inclusion4 decks33 decks
8%synergy
Flooded Strand
12%inclusion4 decks33 decks
1%synergy
Prismatic Vista
9.1%inclusion3 decks33 decks
2%synergy
Blighted Woodland
9.1%inclusion3 decks33 decks
2%synergy
Tangled Islet
9.1%inclusion3 decks33 decks
-7%synergy
Thriving Isle
9.1%inclusion3 decks33 decks
7%synergy
Thornwood Falls
9.1%inclusion3 decks33 decks
-9%synergy
Vibrant Cityscape
8.3%inclusion1 decks12 decks
6%synergy
Overflowing Basin
6.1%inclusion2 decks33 decks
-13%synergy
Talon Gates of Madara
6.1%inclusion2 decks33 decks
-2%synergy
Path of Ancestry
6.1%inclusion2 decks33 decks
-11%synergy
Scalding Tarn
6.1%inclusion2 decks33 decks
-4%synergy
Mana Confluence
6.1%inclusion2 decks33 decks
0%synergy
Polluted Delta
6.1%inclusion2 decks33 decks
-4%synergy
City of Brass
6.1%inclusion2 decks33 decks
0%synergy