Art by Jesper Ejsing
Koma, Cosmos Serpent
Legendary Creature — Serpent
This spell can't be countered. At the beginning of each upkeep, create a 3/3 blue Serpent creature token named Koma's Coil. Sacrifice another Serpent: Choose one — • Tap target permanent. Its activated abilities can't be activated this turn. • Koma gains indestructible until end of turn.
Average Card Type Breakdown
Average Mana Curve
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Most Played With Koma, Cosmos Serpent (185)
Sol Ring
91% of decks · $1.40
Arcane Signet
77% of decks · $0.49
Nature's Lore
59% of decks · $2.22
Growth Spiral
56% of decks · $0.32
Aesi, Tyrant of Gyre Strait
55% of decks · $12.81
Farseek
55% of decks · $0.46
Heroic Intervention
54% of decks · $17.55
Llanowar Elves
52% of decks · $0.35
Doubling Season
51% of decks · $35.33
Three Visits
50% of decks · $5.54
Birds of Paradise
47% of decks · $9.03
Negate
46% of decks · $0.24
Spawning Kraken
46% of decks · $14.23
Double Major
45% of decks · $2.64
Arixmethes, Slumbering Isle
43% of decks · $0.69
Swiftfoot Boots
43% of decks
Tribute to the World Tree
43% of decks · $15.24
Cyclonic Rift
41% of decks · $39.16
Helm of the Host
41% of decks · $5.15
Pongify
41% of decks · $3.12
Simic Signet
40% of decks · $0.39
Elvish Mystic
40% of decks · $5.25
Lightning Greaves
40% of decks · $4.00
An Offer You Can't Refuse
40% of decks · $3.16
Skyshroud Claim
39% of decks · $1.08
Sakura-Tribe Elder
39% of decks · $0.42
Second Harvest
39% of decks · $5.36
Tatyova, Benthic Druid
39% of decks · $0.30
Thought Vessel
38% of decks
Arcane Denial
37% of decks · $2.03
Craterhoof Behemoth
37% of decks · $25.33
Rhystic Study
37% of decks · $69.59
Murkfiend Liege
35% of decks · $4.24
Mana Drain
35% of decks · $56.89
Talisman of Curiosity
33% of decks · $0.56
Swan Song
33% of decks · $10.60
Rapid Hybridization
33% of decks · $0.78
Kindred Discovery
32% of decks · $4.87
Summon: Leviathan
32% of decks · $1.36
Ohran Frostfang
32% of decks · $7.39
Return of the Wildspeaker
31% of decks · $2.63
Hullbreaker Horror
30% of decks · $6.03
Fierce Guardianship
30% of decks · $63.65
Seedborn Muse
29% of decks · $18.57
Explore
28% of decks · $0.19
Roaming Throne
28% of decks · $51.97
Mystic Remora
26% of decks · $15.08
Eternal Witness
26% of decks · $2.21
Fyndhorn Elves
26% of decks · $2.04
Enduring Vitality
26% of decks · $14.32
Overwhelming Stampede
25% of decks · $1.09
Combine Chrysalis
25% of decks · $0.35
Archetype of Imagination
24% of decks · $0.90
Esix, Fractal Bloom
23% of decks · $0.48
Slinn Voda, the Rising Deep
23% of decks · $0.34
Octomancer
23% of decks · $0.34
Worldly Tutor
22% of decks · $31.16
Garruk's Uprising
21% of decks · $0.57
Coiling Oracle
20% of decks · $0.23
Krosan Grip
20% of decks · $1.73
Oko, Thief of Crowns
20% of decks · $5.51
Fanatic of Rhonas
19% of decks · $15.31
Primal Vigor
19% of decks · $14.32
Reality Shift
19% of decks · $0.35
The Unagi of Kyoshi Island
18% of decks · $1.18
Consecrated Sphinx
18% of decks · $32.80
Simic Charm
17% of decks · $3.93
Cryptolith Rite
17% of decks · $14.95
Growing Rites of Itlimoc
17% of decks
Rite of Replication
16% of decks · $0.30
Nature's Claim
16% of decks · $1.34
Wild Growth
16% of decks · $0.59
Chameleon, Master of Disguise
16% of decks · $0.71
Mirror Box
16% of decks · $4.71
Planar Genesis
15% of decks · $0.38
Migration Path
15% of decks · $0.38
Exploration
15% of decks · $30.54
Emerald Medallion
15% of decks · $5.47
Scourge of Fleets
15% of decks · $2.21
Brainstorm
15% of decks · $0.57
Mystical Tutor
15% of decks · $19.16
Aetherize
15% of decks · $0.49
Rishkar's Expertise
14% of decks · $5.48
Scute Swarm
14% of decks · $8.64
Beastmaster Ascension
14% of decks · $7.03
Curiosity Crafter
14% of decks · $0.32
Shamanic Revelation
14% of decks · $1.55
Starwinder
14% of decks · $1.64
Delighted Halfling
14% of decks · $25.14
Xolatoyac, the Smiling Flood
14% of decks · $1.30
Sylvan Library
13% of decks · $28.62
Harrow
13% of decks · $0.31
Finale of Devastation
13% of decks · $32.45
Utopia Sprawl
13% of decks · $2.19
Nezahal, Primal Tide
13% of decks · $9.16
Reclamation Sage
13% of decks · $0.35
Explosive Vegetation
13% of decks · $0.34
Tamiyo's Safekeeping
13% of decks · $4.82
Force of Will
12% of decks · $59.96
Propaganda
12% of decks · $2.22
Triumph of the Hordes
12% of decks
Azusa, Lost but Seeking
12% of decks · $12.45
The Great Henge
12% of decks · $65.74
Sink into Stupor
12% of decks
Snakeskin Veil
12% of decks · $0.26
Toski, Bearer of Secrets
12% of decks · $8.04
Urban Evolution
12% of decks · $0.34
Bala Ged Recovery
12% of decks
Voidslime
12% of decks · $0.60
Fellwar Stone
12% of decks
Nadir Kraken
12% of decks · $0.44
Mister Fantastic, Reed Richards
12% of decks · $0.28
Sapphire Medallion
11% of decks · $8.55
Eureka Moment
11% of decks · $0.24
Avenger of Zendikar
11% of decks · $0.46
Distant Melody
11% of decks · $0.36
Rampaging Baloths
11% of decks · $0.29
Enduring Curiosity
11% of decks · $6.93
Shared Roots
11% of decks · $0.44
Force of Negation
11% of decks · $50.63
Stormtide Leviathan
11% of decks · $1.89
Lotus Cobra
10% of decks · $5.92
Idol of Oblivion
10% of decks · $3.29
Return to Nature
10% of decks · $0.32
Uro, Titan of Nature's Wrath
10% of decks · $3.22
Saryth, the Viper's Fang
10% of decks · $4.35
Wilderness Reclamation
10% of decks · $3.33
Chord of Calling
10% of decks · $8.00
Unnatural Growth
10% of decks · $3.98
Commander's Sphere
10% of decks · $0.34
Troyan, Gutsy Explorer
10% of decks · $0.24
Mystic Reflection
9% of decks · $1.53
Harmonize
9% of decks · $0.24
Plasm Capture
9% of decks · $0.40
Bident of Thassa
9% of decks · $0.45
Circle of Dreams Druid
9% of decks · $17.11
Defense of the Heart
9% of decks · $21.81
Imprisoned in the Moon
9% of decks · $0.31
Stubborn Denial
9% of decks · $4.72
Curse of the Swine
8% of decks · $0.30
Progenitor Mimic
8% of decks · $1.68
Ponder
8% of decks · $3.58
Burgeoning
8% of decks · $34.04
Tireless Provisioner
8% of decks · $4.18
Pact of Negation
8% of decks · $17.18
Impostor Syndrome
8% of decks · $6.78
Extravagant Replication
8% of decks · $0.42
Entish Restoration
8% of decks · $2.79
Green Sun's Zenith
7% of decks · $31.42
Archdruid's Charm
7% of decks · $8.43
Sea Gate Restoration
7% of decks
Regrowth
7% of decks · $0.48
Resculpt
7% of decks · $0.33
Disallow
7% of decks · $1.89
Perplexing Test
7% of decks · $0.34
Thran Dynamo
7% of decks · $4.43
Decisive Denial
7% of decks · $0.31
Multiversal Recruitment
7% of decks · $5.44
Kiora, the Crashing Wave
7% of decks · $1.42
Asceticism
7% of decks · $7.07
Harmonized Crescendo
7% of decks · $1.39
Coat of Arms
7% of decks · $19.25
Kenrith's Transformation
7% of decks · $1.08
Noxious Revival
7% of decks · $7.25
Moonlit Meditation
7% of decks · $0.47
Search for Tomorrow
7% of decks · $0.39
Mana Vault
7% of decks · $116.06
Decanter of Endless Water
6% of decks · $5.27
Force of Vigor
6% of decks · $7.52
The One Ring
6% of decks · $116.27
Springleaf Parade
6% of decks · $7.49
Narset's Reversal
6% of decks · $2.81
Collective Resistance
6% of decks · $2.43
Sublime Epiphany
6% of decks · $0.35
Tyvar's Stand
6% of decks · $1.28
Doppelgang
6% of decks · $1.63
Ravenform
6% of decks · $0.35
Lessons from Life
6% of decks · $0.25
Windfall
5% of decks · $6.02
Mind Stone
5% of decks
Ominous Seas
5% of decks · $1.66
Preordain
5% of decks · $0.87
Raise the Palisade
5% of decks · $11.65
Banner of Kinship
5% of decks · $7.39
Preposterous Proportions
5% of decks · $1.17
New Cards
Verdant Kraken
19% of decks · $2.48
Radagast of Rhosgobel
7% of decks · $1.97
Wizard's Staff
4% of decks · $3.00
Omnipresence
3% of decks · $3.79
Gardenize
2% of decks · $0.73
Creatures (50)
Aesi, Tyrant of Gyre Strait
55% of decks · $12.81
Llanowar Elves
52% of decks · $0.35
Birds of Paradise
47% of decks · $9.03
Spawning Kraken
46% of decks · $14.23
Arixmethes, Slumbering Isle
43% of decks · $0.69
Elvish Mystic
40% of decks · $5.25
Sakura-Tribe Elder
39% of decks · $0.42
Tatyova, Benthic Druid
39% of decks · $0.30
Craterhoof Behemoth
37% of decks · $25.33
Murkfiend Liege
35% of decks · $4.24
Summon: Leviathan
32% of decks · $1.36
Ohran Frostfang
32% of decks · $7.39
Hullbreaker Horror
30% of decks · $6.03
Seedborn Muse
29% of decks · $18.57
Roaming Throne
28% of decks · $51.97
Eternal Witness
26% of decks · $2.21
Fyndhorn Elves
26% of decks · $2.04
Enduring Vitality
26% of decks · $14.32
Archetype of Imagination
24% of decks · $0.90
Esix, Fractal Bloom
23% of decks · $0.48
Slinn Voda, the Rising Deep
23% of decks · $0.34
Octomancer
23% of decks · $0.34
Coiling Oracle
20% of decks · $0.23
Fanatic of Rhonas
19% of decks · $15.31
The Unagi of Kyoshi Island
18% of decks · $1.18
Consecrated Sphinx
18% of decks · $32.80
Chameleon, Master of Disguise
16% of decks · $0.71
Scourge of Fleets
15% of decks · $2.21
Scute Swarm
14% of decks · $8.64
Curiosity Crafter
14% of decks · $0.32
Starwinder
14% of decks · $1.64
Delighted Halfling
14% of decks · $25.14
Xolatoyac, the Smiling Flood
14% of decks · $1.30
Nezahal, Primal Tide
13% of decks · $9.16
Reclamation Sage
13% of decks · $0.35
Azusa, Lost but Seeking
12% of decks · $12.45
Toski, Bearer of Secrets
12% of decks · $8.04
Nadir Kraken
12% of decks · $0.44
Mister Fantastic, Reed Richards
12% of decks · $0.28
Avenger of Zendikar
11% of decks · $0.46
Rampaging Baloths
11% of decks · $0.29
Enduring Curiosity
11% of decks · $6.93
Stormtide Leviathan
11% of decks · $1.89
Lotus Cobra
10% of decks · $5.92
Uro, Titan of Nature's Wrath
10% of decks · $3.22
Saryth, the Viper's Fang
10% of decks · $4.35
Troyan, Gutsy Explorer
10% of decks · $0.24
Circle of Dreams Druid
9% of decks · $17.11
Progenitor Mimic
8% of decks · $1.68
Tireless Provisioner
8% of decks · $4.18
Instants (50)
Growth Spiral
56% of decks · $0.32
Heroic Intervention
54% of decks · $17.55
Negate
46% of decks · $0.24
Double Major
45% of decks · $2.64
Cyclonic Rift
41% of decks · $39.16
Pongify
41% of decks · $3.12
An Offer You Can't Refuse
40% of decks · $3.16
Second Harvest
39% of decks · $5.36
Arcane Denial
37% of decks · $2.03
Mana Drain
35% of decks · $56.89
Swan Song
33% of decks · $10.60
Rapid Hybridization
33% of decks · $0.78
Return of the Wildspeaker
31% of decks · $2.63
Fierce Guardianship
30% of decks · $63.65
Worldly Tutor
22% of decks · $31.16
Krosan Grip
20% of decks · $1.73
Reality Shift
19% of decks · $0.35
Simic Charm
17% of decks · $3.93
Nature's Claim
16% of decks · $1.34
Planar Genesis
15% of decks · $0.38
Brainstorm
15% of decks · $0.57
Mystical Tutor
15% of decks · $19.16
Aetherize
15% of decks · $0.49
Harrow
13% of decks · $0.31
Tamiyo's Safekeeping
13% of decks · $4.82
Force of Will
12% of decks · $59.96
Sink into Stupor
12% of decks
Snakeskin Veil
12% of decks · $0.26
Voidslime
12% of decks · $0.60
Eureka Moment
11% of decks · $0.24
Force of Negation
11% of decks · $50.63
Return to Nature
10% of decks · $0.32
Chord of Calling
10% of decks · $8.00
Mystic Reflection
9% of decks · $1.53
Plasm Capture
9% of decks · $0.40
Stubborn Denial
9% of decks · $4.72
Pact of Negation
8% of decks · $17.18
Entish Restoration
8% of decks · $2.79
Archdruid's Charm
7% of decks · $8.43
Resculpt
7% of decks · $0.33
Disallow
7% of decks · $1.89
Perplexing Test
7% of decks · $0.34
Decisive Denial
7% of decks · $0.31
Harmonized Crescendo
7% of decks · $1.39
Noxious Revival
7% of decks · $7.25
Force of Vigor
6% of decks · $7.52
Narset's Reversal
6% of decks · $2.81
Collective Resistance
6% of decks · $2.43
Sublime Epiphany
6% of decks · $0.35
Tyvar's Stand
6% of decks · $1.28
Sorceries (32)
Nature's Lore
59% of decks · $2.22
Farseek
55% of decks · $0.46
Three Visits
50% of decks · $5.54
Skyshroud Claim
39% of decks · $1.08
Explore
28% of decks · $0.19
Overwhelming Stampede
25% of decks · $1.09
Rite of Replication
16% of decks · $0.30
Migration Path
15% of decks · $0.38
Rishkar's Expertise
14% of decks · $5.48
Shamanic Revelation
14% of decks · $1.55
Finale of Devastation
13% of decks · $32.45
Explosive Vegetation
13% of decks · $0.34
Triumph of the Hordes
12% of decks
Urban Evolution
12% of decks · $0.34
Bala Ged Recovery
12% of decks
Distant Melody
11% of decks · $0.36
Shared Roots
11% of decks · $0.44
Harmonize
9% of decks · $0.24
Curse of the Swine
8% of decks · $0.30
Ponder
8% of decks · $3.58
Green Sun's Zenith
7% of decks · $31.42
Sea Gate Restoration
7% of decks
Regrowth
7% of decks · $0.48
Multiversal Recruitment
7% of decks · $5.44
Search for Tomorrow
7% of decks · $0.39
Doppelgang
6% of decks · $1.63
Ravenform
6% of decks · $0.35
Lessons from Life
6% of decks · $0.25
Windfall
5% of decks · $6.02
Preordain
5% of decks · $0.87
Raise the Palisade
5% of decks · $11.65
Preposterous Proportions
5% of decks · $1.17
Utility Artifacts (13)
Swiftfoot Boots
43% of decks
Helm of the Host
41% of decks · $5.15
Lightning Greaves
40% of decks · $4.00
Combine Chrysalis
25% of decks · $0.35
Mirror Box
16% of decks · $4.71
Emerald Medallion
15% of decks · $5.47
The Great Henge
12% of decks · $65.74
Sapphire Medallion
11% of decks · $8.55
Idol of Oblivion
10% of decks · $3.29
Bident of Thassa
9% of decks · $0.45
Coat of Arms
7% of decks · $19.25
The One Ring
6% of decks · $116.27
Banner of Kinship
5% of decks · $7.39
Mana Artifacts (11)
Sol Ring
91% of decks · $1.40
Arcane Signet
77% of decks · $0.49
Simic Signet
40% of decks · $0.39
Thought Vessel
38% of decks
Talisman of Curiosity
33% of decks · $0.56
Fellwar Stone
12% of decks
Commander's Sphere
10% of decks · $0.34
Thran Dynamo
7% of decks · $4.43
Mana Vault
7% of decks · $116.06
Decanter of Endless Water
6% of decks · $5.27
Mind Stone
5% of decks
Enchantments (27)
Doubling Season
51% of decks · $35.33
Tribute to the World Tree
43% of decks · $15.24
Rhystic Study
37% of decks · $69.59
Kindred Discovery
32% of decks · $4.87
Mystic Remora
26% of decks · $15.08
Garruk's Uprising
21% of decks · $0.57
Primal Vigor
19% of decks · $14.32
Cryptolith Rite
17% of decks · $14.95
Growing Rites of Itlimoc
17% of decks
Wild Growth
16% of decks · $0.59
Exploration
15% of decks · $30.54
Beastmaster Ascension
14% of decks · $7.03
Sylvan Library
13% of decks · $28.62
Utopia Sprawl
13% of decks · $2.19
Propaganda
12% of decks · $2.22
Wilderness Reclamation
10% of decks · $3.33
Unnatural Growth
10% of decks · $3.98
Defense of the Heart
9% of decks · $21.81
Imprisoned in the Moon
9% of decks · $0.31
Burgeoning
8% of decks · $34.04
Impostor Syndrome
8% of decks · $6.78
Extravagant Replication
8% of decks · $0.42
Asceticism
7% of decks · $7.07
Kenrith's Transformation
7% of decks · $1.08
Moonlit Meditation
7% of decks · $0.47
Springleaf Parade
6% of decks · $7.49
Ominous Seas
5% of decks · $1.66
Planeswalkers (2)
Oko, Thief of Crowns
20% of decks · $5.51
Kiora, the Crashing Wave
7% of decks · $1.42
Utility Lands (17)
Reliquary Tower
61% of decks
Boseiju, Who Endures
26% of decks
Yavimaya, Cradle of Growth
24% of decks
Otawara, Soaring City
21% of decks
Temple of the False God
19% of decks
Command Beacon
17% of decks
Mosswort Bridge
17% of decks
Rogue's Passage
17% of decks
Three Tree City
16% of decks
Mystic Sanctuary
13% of decks
Alchemist's Refuge
13% of decks
Mistrise Village
13% of decks
Evendo, Waking Haven
13% of decks
Castle Garenbrig
13% of decks
Ancient Tomb
12% of decks
Gaea's Cradle
10% of decks
Castle Vantress
5% of decks
Lands (49)
Forest
95% of decks
Island
95% of decks
Command Tower
87% of decks
Hinterland Harbor
67% of decks
Breeding Pool
58% of decks
Yavimaya Coast
54% of decks
Dreamroot Cascade
54% of decks
Rejuvenating Springs
54% of decks
Simic Growth Chamber
47% of decks
Flooded Grove
46% of decks
Misty Rainforest
37% of decks
Vineglimmer Snarl
36% of decks
Temple of Mystery
35% of decks
Barkchannel Pathway
33% of decks
Exotic Orchard
25% of decks
Myriad Landscape
23% of decks
Evolving Wilds
23% of decks
Waterlogged Grove
22% of decks
Hedge Maze
21% of decks
Sodden Verdure
21% of decks
Willowrush Verge
21% of decks
Thornwood Falls
20% of decks
Fabled Passage
18% of decks
Tangled Islet
17% of decks
Terramorphic Expanse
16% of decks
Overflowing Basin
16% of decks
Tropical Island
16% of decks
Rimewood Falls
14% of decks
Botanical Sanctum
14% of decks
Sink into Stupor
12% of decks
Bala Ged Recovery
12% of decks
Turbulent Wilderness
10% of decks
Path of Ancestry
10% of decks
Simic Guildgate
9% of decks
Prismatic Vista
9% of decks
Snow-Covered Forest
8% of decks
Snow-Covered Island
8% of decks
Windswept Heath
8% of decks
Flooded Strand
8% of decks
Glasspool Mimic
8% of decks
Verdant Catacombs
8% of decks
Polluted Delta
8% of decks
Sea Gate Restoration
7% of decks
Blighted Woodland
7% of decks
Wooded Foothills
7% of decks
Scalding Tarn
7% of decks
Rain-Slicked Copse
6% of decks
Littjara Mirrorlake
6% of decks
Woodland Stream
5% of decks
Play-rate data via EDHREC. Card images and prices via Scryfall.
Public Decks with Koma, Cosmos Serpent
Real decks submitted by their original builders on Moxfield, Archidekt, and other deck sites — click through to credit and see the full list.
Decks built with Koma, Cosmos Serpent on Mana Forge (0)
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