Karumonix, the Rat King (Commander) - cEDH

Karumonix, the Rat King
Rank #400
8decks
As CommanderAs CardAverage DeckDecks
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Jeremy Rowe
Mar 20, 2026
Jeremy Rowe
Building Rat Typal With Marrow-Gnawer
These Rats will do a lot more than pull your hair. Let's see what Marrow-Gnawer can do leading a swarm of Rats in Commander.
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Utility Lands
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Marrow-Gnawer
88%inclusion7 decks8 decks
84%synergy
Rat Colony
88%inclusion7 decks8 decks
82%synergy
Piper of the Swarm
88%inclusion7 decks8 decks
81%synergy
Thrumming Stone
75%inclusion6 decks8 decks
71%synergy
Swarmyard
75%inclusion6 decks8 decks
69%synergy
Ashcoat of the Shadow Swarm
63%inclusion5 decks8 decks
59%synergy
Skullclamp
75%inclusion6 decks8 decks
53%synergy
Urborg, Tomb of Yawgmoth
88%inclusion7 decks8 decks
50%synergy
Pack Rat
50%inclusion4 decks8 decks
44%synergy
Lord Skitter, Sewer King
50%inclusion4 decks8 decks
42%synergy
Top Cards
Dark Ritual
88%inclusion7 decks8 decks
21%synergy
Jet Medallion
88%inclusion7 decks8 decks
25%synergy
Ayara, First of Locthwain
63%inclusion5 decks8 decks
37%synergy
Diabolic Intent
50%inclusion4 decks8 decks
35%synergy
Ogre Slumlord
50%inclusion4 decks8 decks
40%synergy
Cabal Ritual
50%inclusion4 decks8 decks
31%synergy
Game Changers
Demonic Tutor
100%inclusion8 decks8 decks
73%synergy
Bolas's Citadel
63%inclusion5 decks8 decks
34%synergy
Vampiric Tutor
63%inclusion5 decks8 decks
42%synergy
Imperial Seal
50%inclusion4 decks8 decks
43%synergy
Opposition Agent
38%inclusion3 decks8 decks
28%synergy
Mana Vault
38%inclusion3 decks8 decks
31%synergy
Chrome Mox
38%inclusion3 decks8 decks
31%synergy
Necropotence
25%inclusion2 decks8 decks
11%synergy
The One Ring
13%inclusion1 decks8 decks
3%synergy
Ad Nauseam
13%inclusion1 decks8 decks
10%synergy
Creatures
Crypt Rats
38%inclusion3 decks8 decks
33%synergy
Crypt Ghast
38%inclusion3 decks8 decks
-10%synergy
Ichor Rats
38%inclusion3 decks8 decks
35%synergy
Blood Artist
25%inclusion2 decks8 decks
-7%synergy
Morbid Opportunist
25%inclusion2 decks8 decks
1%synergy
Lord Skitter's Butcher
25%inclusion2 decks8 decks
22%synergy
Zulaport Cutthroat
25%inclusion2 decks8 decks
2%synergy
Species Specialist
25%inclusion2 decks8 decks
22%synergy
Ratcatcher
25%inclusion2 decks8 decks
22%synergy
Blightbelly Rat
25%inclusion2 decks8 decks
22%synergy
Septic Rats
25%inclusion2 decks8 decks
23%synergy
Nashi, Moon Sage's Scion
25%inclusion2 decks8 decks
21%synergy
Grim Haruspex
25%inclusion2 decks8 decks
16%synergy
Dauthi Voidwalker
25%inclusion2 decks8 decks
9%synergy
Rat King, Pale Piper
25%inclusion1 decks4 decks
21%synergy
Plague Stinger
13%inclusion1 decks8 decks
12%synergy
Relentless Rats
13%inclusion1 decks8 decks
11%synergy
Murderous Rider
13%inclusion1 decks8 decks
6%synergy
Plaguecrafter
13%inclusion1 decks8 decks
-8%synergy
Rotting Rats
13%inclusion1 decks8 decks
9%synergy
Tangled Colony
13%inclusion1 decks8 decks
9%synergy
Fleshbag Marauder
13%inclusion1 decks8 decks
-4%synergy
Burglar Rat
13%inclusion1 decks8 decks
2%synergy
Diregraf Ghoul
13%inclusion1 decks8 decks
12%synergy
Gray Merchant of Asphodel
13%inclusion1 decks8 decks
-38%synergy
Swarm of Rats
13%inclusion1 decks8 decks
10%synergy
Chittering Witch
13%inclusion1 decks8 decks
8%synergy
Voracious Vermin
13%inclusion1 decks8 decks
10%synergy
Gix, Yawgmoth Praetor
13%inclusion1 decks8 decks
7%synergy
Massacre Wurm
13%inclusion1 decks8 decks
-5%synergy
Yawgmoth, Thran Physician
13%inclusion1 decks8 decks
3%synergy
Nezumi Prowler
13%inclusion1 decks8 decks
11%synergy
Skirge Familiar
13%inclusion1 decks8 decks
8%synergy
Pestilence Rats
13%inclusion1 decks8 decks
11%synergy
Ink-Eyes, Servant of Oni
13%inclusion1 decks8 decks
9%synergy
Wave of Rats
13%inclusion1 decks8 decks
11%synergy
Gnat Miser
13%inclusion1 decks8 decks
10%synergy
Stronghold Rats
13%inclusion1 decks8 decks
9%synergy
Orcish Bowmasters
13%inclusion1 decks8 decks
-1%synergy
Persistent Marshstalker
13%inclusion1 decks8 decks
10%synergy
Chittering Skitterling
13%inclusion1 decks8 decks
12%synergy
Valley Rotcaller
13%inclusion1 decks8 decks
10%synergy
Changeling Outcast
13%inclusion1 decks8 decks
7%synergy
Typhoid Rats
13%inclusion1 decks8 decks
9%synergy
Rancid Rats
13%inclusion1 decks8 decks
10%synergy
Midnight Reaper
13%inclusion1 decks8 decks
4%synergy
Vampire Nighthawk
13%inclusion1 decks8 decks
7%synergy
Instants
Deadly Rollick
38%inclusion3 decks8 decks
13%synergy
Fatal Push
25%inclusion2 decks8 decks
22%synergy
Imp's Mischief
25%inclusion2 decks8 decks
-0%synergy
Snuff Out
25%inclusion2 decks8 decks
12%synergy
Vraska's Fall
25%inclusion2 decks8 decks
22%synergy
Go for the Throat
25%inclusion2 decks8 decks
2%synergy
Culling the Weak
25%inclusion2 decks8 decks
8%synergy
Tainted Strike
25%inclusion2 decks8 decks
22%synergy
Plumb the Forbidden
25%inclusion2 decks8 decks
21%synergy
Fell the Profane
13%inclusion1 decks8 decks
-7%synergy
Cut Down
13%inclusion1 decks8 decks
9%synergy
Whisper of the Dross
13%inclusion1 decks8 decks
10%synergy
Village Rites
13%inclusion1 decks8 decks
-13%synergy
Deadly Dispute
13%inclusion1 decks8 decks
-14%synergy
Flare of Malice
13%inclusion1 decks8 decks
-1%synergy
Entomb
13%inclusion1 decks8 decks
0%synergy
Withering Boon
13%inclusion1 decks8 decks
8%synergy
Infernal Grasp
13%inclusion1 decks8 decks
-13%synergy
Blood Pact
13%inclusion1 decks8 decks
9%synergy
Sudden Spoiling
13%inclusion1 decks8 decks
4%synergy
Bitter Triumph
13%inclusion1 decks8 decks
3%synergy
Dismember
13%inclusion1 decks8 decks
2%synergy
Victim of Night
13%inclusion1 decks8 decks
11%synergy
Erebos's Intervention
13%inclusion1 decks8 decks
10%synergy
Sorceries
Feed the Swarm
38%inclusion3 decks8 decks
-13%synergy
Toxic Deluge
38%inclusion3 decks8 decks
1%synergy
Sign in Blood
38%inclusion3 decks8 decks
2%synergy
Grim Tutor
38%inclusion3 decks8 decks
26%synergy
Kindred Dominance
38%inclusion3 decks8 decks
33%synergy
Diabolic Tutor
25%inclusion2 decks8 decks
11%synergy
Profane Tutor
25%inclusion2 decks8 decks
21%synergy
Torment of Hailfire
25%inclusion2 decks8 decks
10%synergy
Patriarch's Bidding
25%inclusion2 decks8 decks
21%synergy
Yawgmoth's Will
25%inclusion2 decks8 decks
22%synergy
Night's Whisper
25%inclusion2 decks8 decks
0%synergy
Insatiable Avarice
25%inclusion2 decks8 decks
14%synergy
Infectious Inquiry
25%inclusion2 decks8 decks
22%synergy
Damnation
25%inclusion2 decks8 decks
5%synergy
Cruel Tutor
25%inclusion2 decks8 decks
24%synergy
Nightmare Unmaking
13%inclusion1 decks8 decks
12%synergy
Revenge of the Rats
13%inclusion1 decks8 decks
9%synergy
Duress
13%inclusion1 decks8 decks
6%synergy
Phyresis Outbreak
13%inclusion1 decks8 decks
11%synergy
Dead of Winter
13%inclusion1 decks8 decks
12%synergy
Demonic Collusion
13%inclusion1 decks8 decks
12%synergy
Read the Bones
13%inclusion1 decks8 decks
-4%synergy
Praetor's Grasp
13%inclusion1 decks8 decks
9%synergy
Scheming Symmetry
13%inclusion1 decks8 decks
8%synergy
Exsanguinate
13%inclusion1 decks8 decks
-12%synergy
Agadeem's Awakening
13%inclusion1 decks8 decks
5%synergy
Beseech the Mirror
13%inclusion1 decks8 decks
6%synergy
Drown in Ichor
13%inclusion1 decks8 decks
9%synergy
Plague of Vermin
13%inclusion1 decks8 decks
10%synergy
Pact of the Serpent
13%inclusion1 decks8 decks
11%synergy
Secret Salvage
13%inclusion1 decks8 decks
11%synergy
Reanimate
13%inclusion1 decks8 decks
-28%synergy
Brainspoil
13%inclusion1 decks8 decks
12%synergy
Crippling Fear
13%inclusion1 decks8 decks
10%synergy
Utility Artifacts
Ashnod's Altar
38%inclusion3 decks8 decks
18%synergy
Phyrexian Altar
38%inclusion3 decks8 decks
24%synergy
Eldrazi Monument
38%inclusion3 decks8 decks
36%synergy
Lightning Greaves
38%inclusion3 decks8 decks
4%synergy
Bontu's Monument
38%inclusion3 decks8 decks
9%synergy
Sensei's Divining Top
25%inclusion2 decks8 decks
17%synergy
Contagion Clasp
25%inclusion2 decks8 decks
23%synergy
Contagion Engine
25%inclusion2 decks8 decks
23%synergy
Expedition Map
25%inclusion2 decks8 decks
14%synergy
Locket of Yesterdays
25%inclusion2 decks8 decks
25%synergy
Altar of Dementia
25%inclusion2 decks8 decks
19%synergy
Thornbite Staff
25%inclusion2 decks8 decks
22%synergy
Herald's Horn
25%inclusion2 decks8 decks
19%synergy
Coat of Arms
13%inclusion1 decks8 decks
10%synergy
Door of Destinies
13%inclusion1 decks8 decks
10%synergy
Whispersilk Cloak
13%inclusion1 decks8 decks
7%synergy
Pithing Needle
13%inclusion1 decks8 decks
12%synergy
Swiftfoot Boots
13%inclusion1 decks8 decks
-19%synergy
Nim Deathmantle
13%inclusion1 decks8 decks
10%synergy
Grafted Exoskeleton
13%inclusion1 decks8 decks
11%synergy
Vanquisher's Banner
13%inclusion1 decks8 decks
9%synergy
Enchantments
Bastion of Remembrance
38%inclusion3 decks8 decks
20%synergy
Black Market
25%inclusion2 decks8 decks
4%synergy
Oubliette
25%inclusion2 decks8 decks
22%synergy
Dictate of Erebos
25%inclusion2 decks8 decks
14%synergy
The Meathook Massacre
13%inclusion1 decks8 decks
-5%synergy
Contamination
13%inclusion1 decks8 decks
9%synergy
Phyrexian Reclamation
13%inclusion1 decks8 decks
3%synergy
Grave Pact
13%inclusion1 decks8 decks
-7%synergy
Gate to Phyrexia
13%inclusion1 decks8 decks
12%synergy
Black Market Connections
13%inclusion1 decks8 decks
-12%synergy
Cover of Darkness
13%inclusion1 decks8 decks
9%synergy
Mortal Combat
13%inclusion1 decks8 decks
12%synergy
Phyrexian Arena
13%inclusion1 decks8 decks
-27%synergy
Necrogen Communion
13%inclusion1 decks8 decks
11%synergy
Infernal Darkness
13%inclusion1 decks8 decks
12%synergy
Planeswalkers
Vraska, Betrayal's Sting
25%inclusion2 decks8 decks
22%synergy
Utility Lands
Cabal Coffers
75%inclusion6 decks8 decks
20%synergy
Bojuka Bog
63%inclusion5 decks8 decks
16%synergy
Cabal Stronghold
50%inclusion4 decks8 decks
16%synergy
Vesuva
38%inclusion3 decks8 decks
35%synergy
Nykthos, Shrine to Nyx
38%inclusion3 decks8 decks
8%synergy
Phyrexian Tower
25%inclusion2 decks8 decks
-1%synergy
War Room
25%inclusion2 decks8 decks
9%synergy
Takenuma, Abandoned Mire
25%inclusion2 decks8 decks
9%synergy
Castle Locthwain
25%inclusion2 decks8 decks
8%synergy
Temple of the False God
25%inclusion2 decks8 decks
17%synergy
Witch's Cottage
25%inclusion2 decks8 decks
1%synergy
Deserted Temple
25%inclusion2 decks8 decks
21%synergy
Karn's Bastion
25%inclusion2 decks8 decks
21%synergy
Reliquary Tower
25%inclusion2 decks8 decks
-5%synergy
Vault of Whispers
13%inclusion1 decks8 decks
7%synergy
Ghost Quarter
13%inclusion1 decks8 decks
10%synergy
Crypt of Agadeem
13%inclusion1 decks8 decks
1%synergy
Buried Ruin
13%inclusion1 decks8 decks
7%synergy
Volrath's Stronghold
13%inclusion1 decks8 decks
9%synergy
Geier Reach Sanitarium
13%inclusion1 decks8 decks
2%synergy
The Black Gate
13%inclusion1 decks8 decks
9%synergy
Rogue's Passage
13%inclusion1 decks8 decks
-7%synergy
Field of Ruin
13%inclusion1 decks8 decks
10%synergy
Command Beacon
13%inclusion1 decks8 decks
4%synergy
Mudflat Village
13%inclusion1 decks8 decks
10%synergy
Three Tree City
13%inclusion1 decks8 decks
8%synergy
Mana Artifacts
Arcane Signet
75%inclusion6 decks8 decks
13%synergy
Sol Ring
75%inclusion6 decks8 decks
-11%synergy
Patchwork Banner
38%inclusion3 decks8 decks
33%synergy
Gauntlet of Power
25%inclusion2 decks8 decks
22%synergy
Lotus Petal
25%inclusion2 decks8 decks
17%synergy
Mind Stone
25%inclusion2 decks8 decks
-3%synergy
Commander's Sphere
13%inclusion1 decks8 decks
4%synergy
Staff of Compleation
13%inclusion1 decks8 decks
11%synergy
Charcoal Diamond
13%inclusion1 decks8 decks
-9%synergy
Glistening Sphere
13%inclusion1 decks8 decks
11%synergy
Heraldic Banner
13%inclusion1 decks8 decks
7%synergy
Mox Amber
13%inclusion1 decks8 decks
8%synergy
Thought Vessel
13%inclusion1 decks8 decks
-12%synergy
Mox Diamond
13%inclusion1 decks8 decks
9%synergy
Fellwar Stone
13%inclusion1 decks8 decks
-2%synergy
Lands
Swamp
75%inclusion6 decks8 decks
-20%synergy
Cavern of Souls
38%inclusion3 decks8 decks
31%synergy
Path of Ancestry
25%inclusion2 decks8 decks
20%synergy
Snow-Covered Swamp
25%inclusion2 decks8 decks
18%synergy
Prismatic Vista
13%inclusion1 decks8 decks
10%synergy
Command Tower
13%inclusion1 decks8 decks
7%synergy
Fell the Profane
13%inclusion1 decks8 decks
-7%synergy
Fabled Passage
13%inclusion1 decks8 decks
10%synergy
Myriad Landscape
13%inclusion1 decks8 decks
-12%synergy
Evolving Wilds
13%inclusion1 decks8 decks
9%synergy
Agadeem's Awakening
13%inclusion1 decks8 decks
5%synergy
Gemstone Caverns
13%inclusion1 decks8 decks
8%synergy
Verdant Catacombs
13%inclusion1 decks8 decks
9%synergy
Marsh Flats
13%inclusion1 decks8 decks
9%synergy
Polluted Delta
13%inclusion1 decks8 decks
9%synergy
Bloodstained Mire
13%inclusion1 decks8 decks
9%synergy
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