The Monstrous Serpent (Commander)

Original Name:

Koma, Cosmos SerpentKoma, Cosmos Serpent

The Monstrous Serpent
Rank #308
6,724decks
As CommanderAs CardAverage DeckDecks
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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
16%inclusion182 decks1.15K decks
10%synergy
Shared Roots
8.9%inclusion100 decks1.12K decks
5%synergy
Ember Island Production
4.8%inclusion53 decks1.10K decks
4%synergy
Badgermole Cub
3.8%inclusion45 decks1.18K decks
-1%synergy
Sodden Verdure
3.1%inclusion7 decks226 decks
0%synergy
High Synergy Cards
Adrix and Nev, Twincasters
76%inclusion5.11K decks6.72K decks
68%synergy
Elemental Bond
68%inclusion4.55K decks6.72K decks
62%synergy
Whelming Wave
73%inclusion4.89K decks6.72K decks
62%synergy
Spark Double
63%inclusion4.26K decks6.72K decks
54%synergy
Koma, World-Eater
65%inclusion3.23K decks4.97K decks
52%synergy
Junk Winder
57%inclusion3.84K decks6.72K decks
51%synergy
Parallel Lives
55%inclusion3.69K decks6.72K decks
49%synergy
Serpent of Yawning Depths
55%inclusion3.67K decks6.72K decks
48%synergy
Irenicus's Vile Duplication
52%inclusion3.52K decks6.72K decks
46%synergy
Sakashima of a Thousand Faces
50%inclusion3.33K decks6.72K decks
44%synergy
Top Cards
Cultivate
78%inclusion5.25K decks6.72K decks
31%synergy
Counterspell
74%inclusion4.96K decks6.72K decks
24%synergy
Kodama's Reach
70%inclusion4.72K decks6.72K decks
34%synergy
Rampant Growth
69%inclusion4.63K decks6.72K decks
28%synergy
Beast Within
61%inclusion4.12K decks6.72K decks
12%synergy
Nature's Lore
58%inclusion3.91K decks6.72K decks
28%synergy
Growth Spiral
56%inclusion3.78K decks6.72K decks
12%synergy
Farseek
54%inclusion3.63K decks6.72K decks
29%synergy
Heroic Intervention
54%inclusion3.60K decks6.72K decks
23%synergy
Aesi, Tyrant of Gyre Strait
53%inclusion3.56K decks6.72K decks
36%synergy
Game Changers
Cyclonic Rift
44%inclusion2.96K decks6.72K decks
18%synergy
Rhystic Study
40%inclusion2.67K decks6.72K decks
18%synergy
Fierce Guardianship
32%inclusion2.16K decks6.72K decks
15%synergy
Seedborn Muse
29%inclusion1.93K decks6.72K decks
13%synergy
Worldly Tutor
22%inclusion1.51K decks6.72K decks
7%synergy
Consecrated Sphinx
20%inclusion1.33K decks6.72K decks
11%synergy
Mystical Tutor
16%inclusion1.09K decks6.72K decks
7%synergy
Force of Will
14%inclusion925 decks6.72K decks
4%synergy
Ancient Tomb
13%inclusion871 decks6.72K decks
4%synergy
Gaea's Cradle
10%inclusion680 decks6.72K decks
3%synergy
Creatures
Llanowar Elves
49%inclusion3.32K decks6.72K decks
21%synergy
Spawning Kraken
47%inclusion3.17K decks6.72K decks
40%synergy
Birds of Paradise
46%inclusion3.09K decks6.72K decks
18%synergy
Arixmethes, Slumbering Isle
43%inclusion2.88K decks6.72K decks
29%synergy
Sakura-Tribe Elder
40%inclusion2.67K decks6.72K decks
20%synergy
Elvish Mystic
39%inclusion2.60K decks6.72K decks
15%synergy
Sakashima the Impostor
38%inclusion2.59K decks6.72K decks
36%synergy
Tatyova, Benthic Druid
38%inclusion2.54K decks6.72K decks
7%synergy
Murkfiend Liege
35%inclusion2.39K decks6.72K decks
21%synergy
Garruk's Packleader
33%inclusion2.21K decks6.72K decks
31%synergy
Craterhoof Behemoth
33%inclusion2.20K decks6.72K decks
23%synergy
Hullbreaker Horror
30%inclusion2.03K decks6.72K decks
12%synergy
Ohran Frostfang
29%inclusion1.97K decks6.72K decks
26%synergy
Eternal Witness
29%inclusion1.95K decks6.72K decks
8%synergy
Summon: Leviathan
29%inclusion834 decks2.89K decks
22%synergy
Fyndhorn Elves
28%inclusion1.87K decks6.72K decks
12%synergy
Roaming Throne
27%inclusion1.85K decks6.72K decks
20%synergy
Enduring Vitality
25%inclusion1.36K decks5.40K decks
18%synergy
Slinn Voda, the Rising Deep
25%inclusion1.69K decks6.72K decks
19%synergy
Octomancer
25%inclusion1.40K decks5.68K decks
20%synergy
Esix, Fractal Bloom
24%inclusion1.63K decks6.72K decks
20%synergy
Archetype of Imagination
23%inclusion1.52K decks6.72K decks
18%synergy
Coiling Oracle
21%inclusion1.40K decks6.72K decks
8%synergy
Fanatic of Rhonas
20%inclusion1.17K decks5.97K decks
14%synergy
Scourge of Fleets
16%inclusion1.09K decks6.72K decks
8%synergy
Xolatoyac, the Smiling Flood
15%inclusion975 decks6.72K decks
7%synergy
Curiosity Crafter
14%inclusion973 decks6.72K decks
11%synergy
Reclamation Sage
14%inclusion965 decks6.72K decks
0%synergy
Scute Swarm
14%inclusion963 decks6.72K decks
-6%synergy
Nezahal, Primal Tide
14%inclusion961 decks6.72K decks
3%synergy
Starwinder
14%inclusion317 decks2.24K decks
7%synergy
Chameleon, Master of Disguise
14%inclusion239 decks1.74K decks
11%synergy
Delighted Halfling
13%inclusion901 decks6.72K decks
2%synergy
Nadir Kraken
13%inclusion893 decks6.72K decks
9%synergy
Toski, Bearer of Secrets
13%inclusion859 decks6.72K decks
9%synergy
Enduring Curiosity
13%inclusion696 decks5.45K decks
10%synergy
Avenger of Zendikar
13%inclusion846 decks6.72K decks
-5%synergy
Azusa, Lost but Seeking
12%inclusion817 decks6.72K decks
-2%synergy
Stormtide Leviathan
12%inclusion798 decks6.72K decks
6%synergy
Troyan, Gutsy Explorer
12%inclusion774 decks6.72K decks
8%synergy
Rampaging Baloths
11%inclusion746 decks6.72K decks
-6%synergy
Saryth, the Viper's Fang
11%inclusion724 decks6.72K decks
9%synergy
Lotus Cobra
10%inclusion666 decks6.72K decks
-4%synergy
Uro, Titan of Nature's Wrath
10%inclusion657 decks6.72K decks
0%synergy
Progenitor Mimic
10%inclusion651 decks6.72K decks
5%synergy
Circle of Dreams Druid
9.3%inclusion627 decks6.72K decks
7%synergy
Clever Impersonator
9.1%inclusion615 decks6.72K decks
4%synergy
Inga and Esika
9.0%inclusion603 decks6.72K decks
6%synergy
Kiora, Sovereign of the Deep
9.0%inclusion603 decks6.72K decks
7%synergy
Jaheira, Friend of the Forest
9.0%inclusion603 decks6.72K decks
5%synergy
Instants
Negate
47%inclusion3.14K decks6.72K decks
21%synergy
Double Major
46%inclusion3.13K decks6.72K decks
38%synergy
Pongify
40%inclusion2.67K decks6.72K decks
15%synergy
Arcane Denial
37%inclusion2.51K decks6.72K decks
15%synergy
An Offer You Can't Refuse
37%inclusion2.49K decks6.72K decks
13%synergy
Second Harvest
37%inclusion2.48K decks6.72K decks
31%synergy
Mana Drain
35%inclusion2.35K decks6.72K decks
19%synergy
Swan Song
32%inclusion2.15K decks6.72K decks
13%synergy
Return of the Wildspeaker
31%inclusion2.11K decks6.72K decks
21%synergy
Rapid Hybridization
31%inclusion2.07K decks6.72K decks
5%synergy
Krosan Grip
23%inclusion1.53K decks6.72K decks
15%synergy
Simic Charm
19%inclusion1.24K decks6.72K decks
11%synergy
Reality Shift
18%inclusion1.21K decks6.72K decks
3%synergy
Nature's Claim
16%inclusion1.10K decks6.72K decks
7%synergy
Brainstorm
16%inclusion1.06K decks6.72K decks
1%synergy
Planar Genesis
15%inclusion899 decks5.95K decks
4%synergy
Harrow
14%inclusion973 decks6.72K decks
3%synergy
Tamiyo's Safekeeping
13%inclusion858 decks6.72K decks
7%synergy
Voidslime
13%inclusion846 decks6.72K decks
7%synergy
Return to Nature
12%inclusion833 decks6.72K decks
7%synergy
Aetherize
12%inclusion831 decks6.72K decks
0%synergy
Eureka Moment
12%inclusion810 decks6.72K decks
1%synergy
Snakeskin Veil
12%inclusion784 decks6.72K decks
6%synergy
Sink into Stupor
11%inclusion676 decks5.98K decks
0%synergy
Force of Negation
11%inclusion748 decks6.72K decks
3%synergy
Plasm Capture
11%inclusion738 decks6.72K decks
8%synergy
Mystic Reflection
11%inclusion718 decks6.72K decks
8%synergy
Chord of Calling
10%inclusion675 decks6.72K decks
2%synergy
Pact of Negation
8.8%inclusion592 decks6.72K decks
1%synergy
Entish Restoration
8.3%inclusion557 decks6.72K decks
-1%synergy
Archdruid's Charm
7.9%inclusion530 decks6.71K decks
2%synergy
Stubborn Denial
7.9%inclusion530 decks6.72K decks
5%synergy
Perplexing Test
7.8%inclusion524 decks6.72K decks
3%synergy
Resculpt
7.5%inclusion507 decks6.72K decks
2%synergy
Disallow
7.5%inclusion503 decks6.72K decks
6%synergy
Decisive Denial
7.4%inclusion499 decks6.72K decks
2%synergy
Noxious Revival
7.4%inclusion497 decks6.72K decks
1%synergy
Sublime Epiphany
7.1%inclusion476 decks6.72K decks
5%synergy
Tyvar's Stand
6.3%inclusion422 decks6.72K decks
4%synergy
Narset's Reversal
6.2%inclusion420 decks6.72K decks
5%synergy
Strix Serenade
6.1%inclusion364 decks5.98K decks
2%synergy
Force of Vigor
5.9%inclusion400 decks6.72K decks
1%synergy
Collective Resistance
5.5%inclusion331 decks5.98K decks
2%synergy
Lazotep Plating
5.5%inclusion367 decks6.72K decks
5%synergy
Auroral Procession
5.4%inclusion187 decks3.46K decks
2%synergy
Joint Exploration
5.3%inclusion358 decks6.72K decks
0%synergy
Sorceries
Three Visits
49%inclusion3.27K decks6.72K decks
25%synergy
Skyshroud Claim
38%inclusion2.57K decks6.72K decks
29%synergy
Explore
28%inclusion1.88K decks6.72K decks
8%synergy
Quantum Misalignment
27%inclusion1.83K decks6.72K decks
24%synergy
Overwhelming Stampede
24%inclusion1.62K decks6.72K decks
12%synergy
Rite of Replication
17%inclusion1.15K decks6.72K decks
10%synergy
Shamanic Revelation
16%inclusion1.07K decks6.72K decks
11%synergy
Migration Path
15%inclusion1.01K decks6.72K decks
12%synergy
Urban Evolution
14%inclusion952 decks6.72K decks
5%synergy
Rishkar's Expertise
14%inclusion948 decks6.72K decks
6%synergy
Finale of Devastation
13%inclusion843 decks6.72K decks
1%synergy
Triumph of the Hordes
12%inclusion831 decks6.72K decks
9%synergy
Bala Ged Recovery
12%inclusion824 decks6.72K decks
2%synergy
Distant Melody
12%inclusion821 decks6.72K decks
9%synergy
Explosive Vegetation
12%inclusion812 decks6.72K decks
6%synergy
Harmonize
10%inclusion706 decks6.72K decks
5%synergy
Curse of the Swine
8.7%inclusion583 decks6.72K decks
-2%synergy
Search for Tomorrow
8.4%inclusion562 decks6.72K decks
4%synergy
Ponder
8.3%inclusion561 decks6.72K decks
1%synergy
Regrowth
7.5%inclusion503 decks6.72K decks
4%synergy
Doppelgang
7.2%inclusion484 decks6.72K decks
1%synergy
Sea Gate Restoration
7.0%inclusion474 decks6.72K decks
2%synergy
Ravenform
6.7%inclusion452 decks6.72K decks
2%synergy
Green Sun's Zenith
6.7%inclusion448 decks6.72K decks
-2%synergy
Windfall
6.1%inclusion411 decks6.72K decks
2%synergy
Preposterous Proportions
6.0%inclusion294 decks4.93K decks
5%synergy
Ezuri's Predation
5.7%inclusion384 decks6.72K decks
-2%synergy
Preordain
5.4%inclusion365 decks6.72K decks
-3%synergy
Broken Bond
5.2%inclusion348 decks6.72K decks
0%synergy
Quasiduplicate
5.1%inclusion344 decks6.72K decks
2%synergy
Utility Artifacts
Swiftfoot Boots
44%inclusion2.97K decks6.72K decks
19%synergy
Helm of the Host
43%inclusion2.86K decks6.72K decks
37%synergy
Lightning Greaves
41%inclusion2.77K decks6.72K decks
19%synergy
Combine Chrysalis
26%inclusion1.73K decks6.72K decks
21%synergy
Mirror Box
17%inclusion1.17K decks6.72K decks
14%synergy
Emerald Medallion
13%inclusion896 decks6.72K decks
10%synergy
The Great Henge
12%inclusion796 decks6.72K decks
3%synergy
Idol of Oblivion
11%inclusion754 decks6.72K decks
8%synergy
Sapphire Medallion
11%inclusion710 decks6.72K decks
7%synergy
Eldrazi Monument
10%inclusion654 decks6.72K decks
9%synergy
Bident of Thassa
9.3%inclusion624 decks6.72K decks
2%synergy
Coat of Arms
7.4%inclusion496 decks6.72K decks
6%synergy
The One Ring
7.1%inclusion475 decks6.72K decks
-1%synergy
Banner of Kinship
5.7%inclusion280 decks4.95K decks
4%synergy
Enchantments
Doubling Season
49%inclusion3.30K decks6.72K decks
39%synergy
Tribute to the World Tree
44%inclusion2.94K decks6.72K decks
37%synergy
Kindred Discovery
31%inclusion2.10K decks6.72K decks
22%synergy
Mystic Remora
28%inclusion1.85K decks6.72K decks
12%synergy
Primal Vigor
19%inclusion1.25K decks6.72K decks
15%synergy
Garruk's Uprising
19%inclusion1.24K decks6.72K decks
2%synergy
Growing Rites of Itlimoc
18%inclusion1.18K decks6.72K decks
12%synergy
Wild Growth
16%inclusion1.05K decks6.72K decks
7%synergy
Sylvan Library
15%inclusion1.01K decks6.72K decks
6%synergy
Beastmaster Ascension
15%inclusion997 decks6.72K decks
12%synergy
Cryptolith Rite
15%inclusion996 decks6.72K decks
12%synergy
Exploration
15%inclusion977 decks6.72K decks
1%synergy
Utopia Sprawl
13%inclusion890 decks6.72K decks
7%synergy
Paradox Haze
12%inclusion802 decks6.72K decks
12%synergy
Propaganda
11%inclusion764 decks6.72K decks
5%synergy
Wilderness Reclamation
10%inclusion679 decks6.72K decks
1%synergy
Unnatural Growth
10%inclusion652 decks6.72K decks
6%synergy
Impostor Syndrome
10%inclusion168 decks1.75K decks
8%synergy
Defense of the Heart
8.9%inclusion597 decks6.72K decks
7%synergy
Moonlit Meditation
8.3%inclusion187 decks2.25K decks
7%synergy
Extravagant Replication
8.1%inclusion542 decks6.72K decks
6%synergy
Burgeoning
7.8%inclusion523 decks6.72K decks
1%synergy
Imprisoned in the Moon
7.7%inclusion518 decks6.72K decks
4%synergy
Asceticism
7.1%inclusion479 decks6.72K decks
4%synergy
Kenrith's Transformation
7.0%inclusion473 decks6.72K decks
3%synergy
Ominous Seas
6.6%inclusion445 decks6.72K decks
2%synergy
Verity Circle
5.4%inclusion364 decks6.72K decks
5%synergy
Dismiss into Dream
5.1%inclusion346 decks6.72K decks
5%synergy
Planeswalkers
Oko, Thief of Crowns
21%inclusion1.41K decks6.72K decks
14%synergy
Kiora, the Crashing Wave
7.9%inclusion532 decks6.72K decks
5%synergy
Utility Lands
Reliquary Tower
61%inclusion4.09K decks6.72K decks
11%synergy
Boseiju, Who Endures
26%inclusion1.73K decks6.72K decks
3%synergy
Yavimaya, Cradle of Growth
25%inclusion1.65K decks6.72K decks
2%synergy
Otawara, Soaring City
21%inclusion1.40K decks6.72K decks
2%synergy
Temple of the False God
20%inclusion1.33K decks6.72K decks
4%synergy
Command Beacon
18%inclusion1.23K decks6.72K decks
14%synergy
Mosswort Bridge
17%inclusion1.11K decks6.72K decks
-1%synergy
Three Tree City
16%inclusion929 decks5.73K decks
11%synergy
Rogue's Passage
15%inclusion1.01K decks6.72K decks
-7%synergy
Mystic Sanctuary
14%inclusion951 decks6.72K decks
2%synergy
Castle Garenbrig
13%inclusion887 decks6.72K decks
9%synergy
Mistrise Village
13%inclusion447 decks3.46K decks
2%synergy
Alchemist's Refuge
12%inclusion823 decks6.72K decks
-5%synergy
Evendo, Waking Haven
12%inclusion274 decks2.30K decks
7%synergy
Castle Vantress
5.8%inclusion387 decks6.72K decks
-1%synergy
Restless Vinestalk
5.5%inclusion370 decks6.72K decks
0%synergy
Lumbering Falls
5.1%inclusion343 decks6.72K decks
-2%synergy
Mana Artifacts
Sol Ring
92%inclusion6.17K decks6.72K decks
11%synergy
Arcane Signet
78%inclusion5.23K decks6.72K decks
15%synergy
Simic Signet
44%inclusion2.93K decks6.72K decks
12%synergy
Thought Vessel
39%inclusion2.63K decks6.72K decks
19%synergy
Talisman of Curiosity
33%inclusion2.25K decks6.72K decks
12%synergy
Commander's Sphere
11%inclusion764 decks6.72K decks
3%synergy
Fellwar Stone
11%inclusion758 decks6.72K decks
2%synergy
Decanter of Endless Water
7.3%inclusion489 decks6.72K decks
2%synergy
Mana Vault
7.0%inclusion472 decks6.72K decks
1%synergy
Thran Dynamo
6.9%inclusion467 decks6.72K decks
4%synergy
Mind Stone
5.9%inclusion399 decks6.72K decks
1%synergy
Lands
Forest
94%inclusion6.35K decks6.72K decks
-1%synergy
Island
94%inclusion6.34K decks6.72K decks
-1%synergy
Command Tower
87%inclusion5.83K decks6.72K decks
1%synergy
Hinterland Harbor
66%inclusion4.42K decks6.72K decks
6%synergy
Breeding Pool
56%inclusion3.73K decks6.72K decks
9%synergy
Yavimaya Coast
55%inclusion3.68K decks6.72K decks
2%synergy
Rejuvenating Springs
54%inclusion3.66K decks6.72K decks
11%synergy
Dreamroot Cascade
50%inclusion3.36K decks6.72K decks
8%synergy
Simic Growth Chamber
49%inclusion3.32K decks6.72K decks
1%synergy
Flooded Grove
45%inclusion3K decks6.72K decks
3%synergy
Temple of Mystery
37%inclusion2.51K decks6.72K decks
-1%synergy
Misty Rainforest
37%inclusion2.46K decks6.72K decks
5%synergy
Vineglimmer Snarl
36%inclusion2.43K decks6.72K decks
-2%synergy
Barkchannel Pathway
35%inclusion2.36K decks6.72K decks
15%synergy
Myriad Landscape
26%inclusion1.77K decks6.72K decks
5%synergy
Exotic Orchard
25%inclusion1.69K decks6.72K decks
1%synergy
Evolving Wilds
23%inclusion1.52K decks6.72K decks
-3%synergy
Waterlogged Grove
22%inclusion1.46K decks6.72K decks
1%synergy
Thornwood Falls
20%inclusion1.34K decks6.72K decks
2%synergy
Hedge Maze
20%inclusion1.32K decks6.72K decks
0%synergy
Tangled Islet
20%inclusion1.32K decks6.72K decks
3%synergy
Willowrush Verge
19%inclusion783 decks4.14K decks
2%synergy
Fabled Passage
17%inclusion1.16K decks6.72K decks
3%synergy
Rimewood Falls
17%inclusion1.16K decks6.72K decks
8%synergy
Terramorphic Expanse
16%inclusion1.06K decks6.72K decks
-4%synergy
Overflowing Basin
15%inclusion979 decks6.51K decks
-4%synergy
Tropical Island
15%inclusion1.01K decks6.72K decks
1%synergy
Botanical Sanctum
13%inclusion898 decks6.72K decks
1%synergy
Bala Ged Recovery
12%inclusion824 decks6.72K decks
2%synergy
Sink into Stupor
11%inclusion676 decks5.98K decks
0%synergy
Path of Ancestry
10%inclusion686 decks6.72K decks
-7%synergy
Simic Guildgate
10%inclusion686 decks6.72K decks
0%synergy
Snow-Covered Island
9.3%inclusion625 decks6.72K decks
2%synergy
Snow-Covered Forest
9.3%inclusion625 decks6.72K decks
3%synergy
Prismatic Vista
9.2%inclusion617 decks6.72K decks
2%synergy
Glasspool Mimic
8.7%inclusion584 decks6.72K decks
4%synergy
Blighted Woodland
8.1%inclusion548 decks6.72K decks
1%synergy
Windswept Heath
7.9%inclusion531 decks6.72K decks
-3%synergy
Flooded Strand
7.9%inclusion531 decks6.72K decks
-3%synergy
Verdant Catacombs
7.6%inclusion511 decks6.72K decks
-2%synergy
Polluted Delta
7.3%inclusion488 decks6.72K decks
-3%synergy
Littjara Mirrorlake
7.2%inclusion482 decks6.72K decks
3%synergy
Sea Gate Restoration
7.0%inclusion474 decks6.72K decks
2%synergy
Scalding Tarn
6.8%inclusion458 decks6.72K decks
-3%synergy
Wooded Foothills
6.4%inclusion432 decks6.72K decks
-3%synergy
Woodland Stream
6.0%inclusion404 decks6.72K decks
1%synergy
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