The Monstrous Serpent (Commander) - Sea Creatures

Original Name:

Koma, Cosmos SerpentKoma, Cosmos Serpent

The Monstrous Serpent
Rank #304
139decks
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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
28%inclusion5 decks18 decks
22%synergy
Ember Island Production
11%inclusion2 decks18 decks
10%synergy
Spirit Water Revival
5.6%inclusion1 decks18 decks
5%synergy
Shared Roots
5.6%inclusion1 decks18 decks
2%synergy
Agna Qel'a
5.6%inclusion1 decks18 decks
4%synergy
High Synergy Cards
Serpent of Yawning Depths
86%inclusion119 decks139 decks
79%synergy
Whelming Wave
90%inclusion125 decks139 decks
79%synergy
Spawning Kraken
73%inclusion102 decks139 decks
66%synergy
Slinn Voda, the Rising Deep
69%inclusion96 decks139 decks
63%synergy
Junk Winder
68%inclusion94 decks139 decks
61%synergy
Koma, World-Eater
74%inclusion49 decks66 decks
61%synergy
Arixmethes, Slumbering Isle
73%inclusion101 decks139 decks
59%synergy
Aesi, Tyrant of Gyre Strait
76%inclusion105 decks139 decks
58%synergy
Adrix and Nev, Twincasters
61%inclusion85 decks139 decks
53%synergy
Stormtide Leviathan
53%inclusion74 decks139 decks
47%synergy
Top Cards
Cultivate
81%inclusion112 decks139 decks
34%synergy
Kodama's Reach
76%inclusion105 decks139 decks
39%synergy
Rampant Growth
76%inclusion105 decks139 decks
35%synergy
Counterspell
71%inclusion99 decks139 decks
21%synergy
Growth Spiral
69%inclusion96 decks139 decks
24%synergy
Hullbreaker Horror
62%inclusion86 decks139 decks
44%synergy
Beast Within
55%inclusion77 decks139 decks
5%synergy
Scourge of Fleets
55%inclusion76 decks139 decks
47%synergy
Xolatoyac, the Smiling Flood
51%inclusion71 decks139 decks
44%synergy
Nadir Kraken
51%inclusion71 decks139 decks
47%synergy
Game Changers
Cyclonic Rift
38%inclusion53 decks139 decks
12%synergy
Rhystic Study
28%inclusion39 decks139 decks
6%synergy
Fierce Guardianship
21%inclusion29 decks139 decks
4%synergy
Worldly Tutor
12%inclusion17 decks139 decks
-3%synergy
Seedborn Muse
11%inclusion15 decks139 decks
-5%synergy
Ancient Tomb
7.9%inclusion11 decks139 decks
-1%synergy
Mystical Tutor
7.9%inclusion11 decks139 decks
-1%synergy
Consecrated Sphinx
6.5%inclusion9 decks139 decks
-2%synergy
Creatures
Tromokratis
49%inclusion68 decks139 decks
44%synergy
Kiora, Sovereign of the Deep
46%inclusion64 decks139 decks
44%synergy
Summon: Leviathan
45%inclusion14 decks31 decks
38%synergy
Inkwell Leviathan
45%inclusion62 decks139 decks
40%synergy
Stormsurge Kraken
44%inclusion61 decks139 decks
40%synergy
Deep-Sea Kraken
40%inclusion55 decks139 decks
37%synergy
Nezahal, Primal Tide
39%inclusion54 decks139 decks
28%synergy
Sword Coast Serpent
37%inclusion52 decks139 decks
36%synergy
Shipbreaker Kraken
37%inclusion52 decks139 decks
34%synergy
Simic Sky Swallower
37%inclusion52 decks139 decks
33%synergy
Brinelin, the Moon Kraken
36%inclusion50 decks139 decks
32%synergy
Birds of Paradise
35%inclusion49 decks139 decks
7%synergy
Reservoir Kraken
32%inclusion45 decks139 decks
31%synergy
Trench Behemoth
32%inclusion44 decks139 decks
29%synergy
Reef Worm
31%inclusion43 decks139 decks
27%synergy
Murkfiend Liege
30%inclusion42 decks139 decks
16%synergy
Spark Double
30%inclusion42 decks139 decks
21%synergy
Monstrosity of the Lake
29%inclusion41 decks139 decks
27%synergy
Lorthos, the Tidemaker
29%inclusion40 decks139 decks
25%synergy
Charix, the Raging Isle
28%inclusion39 decks139 decks
25%synergy
Sakura-Tribe Elder
28%inclusion39 decks139 decks
9%synergy
Tatyova, Benthic Druid
28%inclusion39 decks139 decks
-3%synergy
Breaching Leviathan
27%inclusion38 decks139 decks
25%synergy
The Watcher in the Water
27%inclusion37 decks139 decks
25%synergy
Llanowar Elves
25%inclusion35 decks139 decks
-3%synergy
Cryptic Serpent
25%inclusion35 decks139 decks
25%synergy
Benthic Anomaly
23%inclusion24 decks106 decks
20%synergy
Scrapdiver Serpent
22%inclusion30 decks139 decks
21%synergy
Sakashima of a Thousand Faces
22%inclusion30 decks139 decks
17%synergy
Octomancer
21%inclusion20 decks96 decks
16%synergy
Starwinder
21%inclusion6 decks29 decks
14%synergy
Mesmerizing Benthid
20%inclusion28 decks139 decks
19%synergy
Elvish Mystic
19%inclusion26 decks139 decks
-5%synergy
Sakashima the Impostor
19%inclusion26 decks139 decks
16%synergy
Chameleon, Master of Disguise
19%inclusion5 decks27 decks
16%synergy
Harbor Serpent
18%inclusion25 decks139 decks
18%synergy
Tolarian Kraken
17%inclusion24 decks139 decks
16%synergy
Archetype of Imagination
17%inclusion24 decks139 decks
13%synergy
Verazol, the Split Current
17%inclusion24 decks139 decks
17%synergy
Enduring Vitality
16%inclusion14 decks88 decks
8%synergy
Craterhoof Behemoth
16%inclusion22 decks139 decks
6%synergy
Esix, Fractal Bloom
16%inclusion22 decks139 decks
12%synergy
Garruk's Packleader
15%inclusion21 decks139 decks
13%synergy
Coiling Oracle
15%inclusion21 decks139 decks
2%synergy
Sea-Dasher Octopus
14%inclusion20 decks139 decks
12%synergy
Elder Deep-Fiend
14%inclusion20 decks139 decks
13%synergy
Tolarian Terror
14%inclusion20 decks139 decks
14%synergy
Nimbus Swimmer
14%inclusion20 decks139 decks
13%synergy
Roaming Throne
13%inclusion18 decks139 decks
5%synergy
Shrouded Serpent
13%inclusion18 decks139 decks
13%synergy
Instants
Negate
45%inclusion63 decks139 decks
19%synergy
Return of the Wildspeaker
37%inclusion51 decks139 decks
26%synergy
Simic Charm
36%inclusion50 decks139 decks
28%synergy
Double Major
32%inclusion45 decks139 decks
24%synergy
Heroic Intervention
31%inclusion43 decks139 decks
1%synergy
Arcane Denial
29%inclusion40 decks139 decks
6%synergy
Krosan Grip
27%inclusion37 decks139 decks
19%synergy
Engulf the Shore
24%inclusion33 decks139 decks
22%synergy
Planar Genesis
24%inclusion25 decks106 decks
13%synergy
Mana Drain
23%inclusion32 decks139 decks
7%synergy
Second Harvest
22%inclusion31 decks139 decks
16%synergy
Pongify
21%inclusion29 decks139 decks
-4%synergy
Return to Nature
19%inclusion27 decks139 decks
14%synergy
Harrow
19%inclusion26 decks139 decks
7%synergy
Rapid Hybridization
16%inclusion22 decks139 decks
-10%synergy
Eureka Moment
15%inclusion21 decks139 decks
4%synergy
An Offer You Can't Refuse
15%inclusion21 decks139 decks
-8%synergy
Brainstorm
14%inclusion20 decks139 decks
0%synergy
Aetherize
14%inclusion20 decks139 decks
3%synergy
Plasm Capture
14%inclusion19 decks139 decks
10%synergy
Nature's Claim
12%inclusion16 decks139 decks
2%synergy
Reality Shift
12%inclusion16 decks139 decks
-3%synergy
Swan Song
11%inclusion15 decks139 decks
-8%synergy
Snakeskin Veil
7.9%inclusion11 decks139 decks
2%synergy
Sink into Stupor
7.4%inclusion8 decks108 decks
-4%synergy
Archdruid's Charm
7.2%inclusion10 decks138 decks
1%synergy
Decisive Denial
7.2%inclusion10 decks139 decks
2%synergy
Entish Restoration
7.2%inclusion10 decks139 decks
-2%synergy
High Tide
7.2%inclusion10 decks139 decks
5%synergy
Pact of Negation
6.5%inclusion9 decks139 decks
-1%synergy
Magic Damper
6.5%inclusion2 decks31 decks
6%synergy
Stubborn Denial
5.8%inclusion8 decks139 decks
3%synergy
Tamiyo's Safekeeping
5.8%inclusion8 decks139 decks
0%synergy
Voidslime
5.8%inclusion8 decks139 decks
1%synergy
Tyvar's Stand
5.0%inclusion7 decks139 decks
2%synergy
Mystic Reflection
5.0%inclusion7 decks139 decks
3%synergy
Force of Negation
5.0%inclusion7 decks139 decks
-4%synergy
Sorceries
Farseek
50%inclusion70 decks139 decks
25%synergy
Nature's Lore
50%inclusion70 decks139 decks
20%synergy
Irenicus's Vile Duplication
38%inclusion53 decks139 decks
32%synergy
Three Visits
37%inclusion51 decks139 decks
14%synergy
Urban Evolution
32%inclusion45 decks139 decks
23%synergy
Explore
32%inclusion44 decks139 decks
11%synergy
Skyshroud Claim
29%inclusion40 decks139 decks
20%synergy
Crush of Tentacles
22%inclusion31 decks139 decks
21%synergy
Overwhelming Stampede
19%inclusion27 decks139 decks
7%synergy
Rite of Replication
17%inclusion23 decks139 decks
9%synergy
Last March of the Ents
15%inclusion21 decks139 decks
11%synergy
Quantum Misalignment
14%inclusion19 decks139 decks
11%synergy
Migration Path
13%inclusion18 decks139 decks
10%synergy
Search for Tomorrow
12%inclusion17 decks139 decks
8%synergy
Harmonize
12%inclusion16 decks139 decks
6%synergy
Ponder
9.4%inclusion13 decks139 decks
2%synergy
Rishkar's Expertise
9.4%inclusion13 decks139 decks
1%synergy
Shamanic Revelation
9.4%inclusion13 decks139 decks
4%synergy
Bala Ged Recovery
7.9%inclusion11 decks139 decks
-2%synergy
Preposterous Proportions
7.8%inclusion5 decks64 decks
6%synergy
Unexpected Results
7.2%inclusion10 decks139 decks
6%synergy
Curse of the Swine
7.2%inclusion10 decks139 decks
-4%synergy
Explosive Vegetation
7.2%inclusion10 decks139 decks
2%synergy
Doppelgang
7.2%inclusion10 decks139 decks
1%synergy
Nature's Rhythm
5.9%inclusion2 decks34 decks
0%synergy
Broken Bond
5.8%inclusion8 decks139 decks
1%synergy
Sea Gate Restoration
5.0%inclusion7 decks139 decks
0%synergy
Spitting Image
5.0%inclusion7 decks139 decks
3%synergy
Utility Artifacts
Swiftfoot Boots
42%inclusion58 decks139 decks
16%synergy
Helm of the Host
31%inclusion43 decks139 decks
26%synergy
Kefnet's Monument
30%inclusion42 decks139 decks
29%synergy
Lightning Greaves
24%inclusion34 decks139 decks
3%synergy
Combine Chrysalis
15%inclusion21 decks139 decks
11%synergy
Sapphire Medallion
15%inclusion21 decks139 decks
12%synergy
Monster Manual
11%inclusion15 decks139 decks
9%synergy
The Great Henge
10%inclusion14 decks139 decks
1%synergy
Urza's Incubator
10%inclusion14 decks139 decks
9%synergy
Emerald Medallion
10%inclusion14 decks139 decks
7%synergy
Mirror Box
9.4%inclusion13 decks139 decks
6%synergy
Herald's Horn
7.9%inclusion11 decks139 decks
4%synergy
Bident of Thassa
7.9%inclusion11 decks139 decks
1%synergy
Coat of Arms
6.5%inclusion9 decks139 decks
5%synergy
Rhonas's Monument
6.5%inclusion9 decks139 decks
5%synergy
Idol of Oblivion
6.5%inclusion9 decks139 decks
3%synergy
Quicksilver Amulet
5.0%inclusion7 decks139 decks
4%synergy
Enchantments
Elemental Bond
51%inclusion71 decks139 decks
45%synergy
Garruk's Uprising
45%inclusion62 decks139 decks
28%synergy
Parallel Lives
42%inclusion58 decks139 decks
36%synergy
Tribute to the World Tree
40%inclusion55 decks139 decks
33%synergy
Quest for Ula's Temple
35%inclusion49 decks139 decks
33%synergy
Ominous Seas
35%inclusion48 decks139 decks
30%synergy
Doubling Season
25%inclusion35 decks139 decks
16%synergy
Kiora Bests the Sea God
22%inclusion30 decks139 decks
20%synergy
Kindred Discovery
21%inclusion29 decks139 decks
11%synergy
Impostor Syndrome
19%inclusion5 decks27 decks
16%synergy
Mystic Remora
15%inclusion21 decks139 decks
0%synergy
Unnatural Growth
11%inclusion15 decks139 decks
7%synergy
Khalni Heart Expedition
11%inclusion15 decks139 decks
7%synergy
Moonlit Meditation
10%inclusion3 decks29 decks
9%synergy
Utopia Sprawl
10%inclusion14 decks139 decks
4%synergy
Beastmaster Ascension
8.6%inclusion12 decks139 decks
6%synergy
Sylvan Library
8.6%inclusion12 decks139 decks
-1%synergy
Exploration
7.9%inclusion11 decks139 decks
-5%synergy
Levitation
7.9%inclusion11 decks139 decks
7%synergy
Up the Beanstalk
7.2%inclusion10 decks139 decks
3%synergy
Omniscience
7.2%inclusion10 decks139 decks
3%synergy
Primal Vigor
7.2%inclusion10 decks139 decks
4%synergy
Propaganda
7.2%inclusion10 decks139 decks
0%synergy
Wilderness Reclamation
6.5%inclusion9 decks139 decks
-2%synergy
Wild Growth
6.5%inclusion9 decks139 decks
-2%synergy
Reflections of Littjara
6.5%inclusion9 decks139 decks
-1%synergy
Paradox Haze
6.5%inclusion9 decks139 decks
6%synergy
Bounty of the Luxa
6.5%inclusion9 decks139 decks
5%synergy
Extravagant Replication
5.8%inclusion8 decks139 decks
3%synergy
Defense of the Heart
5.8%inclusion8 decks139 decks
3%synergy
Cryptolith Rite
5.0%inclusion7 decks139 decks
2%synergy
Primal Empathy
5.0%inclusion7 decks139 decks
3%synergy
Burgeoning
5.0%inclusion7 decks139 decks
-2%synergy
Asceticism
5.0%inclusion7 decks139 decks
2%synergy
Growing Rites of Itlimoc
5.0%inclusion7 decks139 decks
-1%synergy
Battles
Invasion of Segovia
12%inclusion16 decks139 decks
11%synergy
Planeswalkers
Kiora, the Crashing Wave
28%inclusion39 decks139 decks
25%synergy
Kiora, Master of the Depths
8.6%inclusion12 decks139 decks
6%synergy
Kiora, Behemoth Beckoner
8.6%inclusion12 decks139 decks
2%synergy
Oko, Thief of Crowns
7.2%inclusion10 decks139 decks
0%synergy
Utility Lands
Reliquary Tower
67%inclusion93 decks139 decks
17%synergy
Mosswort Bridge
32%inclusion45 decks139 decks
15%synergy
Temple of the False God
27%inclusion37 decks139 decks
11%synergy
Evendo, Waking Haven
20%inclusion6 decks30 decks
15%synergy
Yavimaya, Cradle of Growth
19%inclusion27 decks139 decks
-3%synergy
Boseiju, Who Endures
17%inclusion23 decks139 decks
-6%synergy
Mystic Sanctuary
16%inclusion22 decks139 decks
3%synergy
Rogue's Passage
16%inclusion22 decks139 decks
-6%synergy
Mistrise Village
14%inclusion5 decks36 decks
3%synergy
Coral Atoll
12%inclusion16 decks139 decks
9%synergy
Dark Depths
12%inclusion16 decks139 decks
5%synergy
Three Tree City
10%inclusion10 decks99 decks
5%synergy
Castle Vantress
10%inclusion14 decks139 decks
3%synergy
Castle Garenbrig
10%inclusion14 decks139 decks
6%synergy
Command Beacon
9.4%inclusion13 decks139 decks
5%synergy
Otawara, Soaring City
9.4%inclusion13 decks139 decks
-10%synergy
Lumbering Falls
7.2%inclusion10 decks139 decks
0%synergy
Restless Vinestalk
6.5%inclusion9 decks139 decks
1%synergy
Alchemist's Refuge
5.8%inclusion8 decks139 decks
-12%synergy
Bonders' Enclave
5.8%inclusion8 decks139 decks
4%synergy
Jungle Basin
5.8%inclusion8 decks139 decks
3%synergy
Halimar Depths
5.0%inclusion7 decks139 decks
2%synergy
Thespian's Stage
5.0%inclusion7 decks139 decks
-2%synergy
Mana Artifacts
Sol Ring
92%inclusion128 decks139 decks
11%synergy
Arcane Signet
80%inclusion111 decks139 decks
17%synergy
Simic Signet
48%inclusion67 decks139 decks
16%synergy
Thought Vessel
27%inclusion38 decks139 decks
7%synergy
Talisman of Curiosity
22%inclusion30 decks139 decks
0%synergy
Commander's Sphere
14%inclusion19 decks139 decks
6%synergy
Decanter of Endless Water
10%inclusion14 decks139 decks
5%synergy
Thran Dynamo
9.4%inclusion13 decks139 decks
7%synergy
Mind Stone
5.0%inclusion7 decks139 decks
1%synergy
Lands
Island
89%inclusion124 decks139 decks
-6%synergy
Forest
89%inclusion124 decks139 decks
-6%synergy
Command Tower
87%inclusion121 decks139 decks
2%synergy
Simic Growth Chamber
64%inclusion89 decks139 decks
16%synergy
Hinterland Harbor
64%inclusion89 decks139 decks
5%synergy
Temple of Mystery
49%inclusion68 decks139 decks
11%synergy
Dreamroot Cascade
48%inclusion67 decks139 decks
6%synergy
Rejuvenating Springs
46%inclusion64 decks139 decks
2%synergy
Breeding Pool
42%inclusion59 decks139 decks
-4%synergy
Flooded Grove
35%inclusion49 decks139 decks
-6%synergy
Thornwood Falls
35%inclusion49 decks139 decks
18%synergy
Barkchannel Pathway
34%inclusion47 decks139 decks
14%synergy
Vineglimmer Snarl
30%inclusion42 decks139 decks
-8%synergy
Yavimaya Coast
29%inclusion41 decks139 decks
-23%synergy
Tangled Islet
29%inclusion40 decks139 decks
12%synergy
Myriad Landscape
28%inclusion39 decks139 decks
6%synergy
Evolving Wilds
27%inclusion37 decks139 decks
2%synergy
Willowrush Verge
26%inclusion11 decks42 decks
10%synergy
Rimewood Falls
22%inclusion30 decks139 decks
12%synergy
Misty Rainforest
21%inclusion29 decks139 decks
-11%synergy
Exotic Orchard
17%inclusion24 decks139 decks
-7%synergy
Terramorphic Expanse
17%inclusion23 decks139 decks
-3%synergy
Snow-Covered Forest
14%inclusion20 decks139 decks
8%synergy
Snow-Covered Island
14%inclusion19 decks139 decks
7%synergy
Tropical Island
14%inclusion19 decks139 decks
-1%synergy
Waterlogged Grove
13%inclusion18 decks139 decks
-8%synergy
Path of Ancestry
12%inclusion17 decks139 decks
-5%synergy
Woodland Stream
12%inclusion17 decks139 decks
7%synergy
Hedge Maze
12%inclusion16 decks139 decks
-8%synergy
Simic Guildgate
12%inclusion16 decks139 decks
1%synergy
Overflowing Basin
11%inclusion14 decks130 decks
-9%synergy
Botanical Sanctum
10%inclusion14 decks139 decks
-3%synergy
Blighted Woodland
8.6%inclusion12 decks139 decks
1%synergy
Lush Oasis
8.5%inclusion10 decks118 decks
3%synergy
Bala Ged Recovery
7.9%inclusion11 decks139 decks
-2%synergy
Sink into Stupor
7.4%inclusion8 decks108 decks
-4%synergy
Littjara Mirrorlake
6.5%inclusion9 decks139 decks
3%synergy
Cavern of Souls
5.8%inclusion8 decks139 decks
0%synergy
Fabled Passage
5.0%inclusion7 decks139 decks
-10%synergy
Sea Gate Restoration
5.0%inclusion7 decks139 decks
0%synergy
Glasspool Mimic
5.0%inclusion7 decks139 decks
1%synergy
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