Karumonix, the Rat King (Commander) - Expensive Upgraded Infect

Karumonix, the Rat King
Rank #382
7decks
As CommanderAs CardAverage DeckDecks
Bracket
All12345
Budget
Any$$$$
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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Marrow-Gnawer
100%inclusion7 decks7 decks
97%synergy
Ashcoat of the Shadow Swarm
100%inclusion7 decks7 decks
97%synergy
Swarmyard
100%inclusion7 decks7 decks
94%synergy
Piper of the Swarm
100%inclusion7 decks7 decks
93%synergy
Ichor Rats
86%inclusion6 decks7 decks
83%synergy
Blightbelly Rat
86%inclusion6 decks7 decks
82%synergy
Ogre Slumlord
86%inclusion6 decks7 decks
76%synergy
Cover of Darkness
71%inclusion5 decks7 decks
68%synergy
Herald's Horn
71%inclusion5 decks7 decks
66%synergy
Pack Rat
71%inclusion5 decks7 decks
65%synergy
Top Cards
Deadly Rollick
71%inclusion5 decks7 decks
47%synergy
Dark Ritual
71%inclusion5 decks7 decks
5%synergy
Lord Skitter, Sewer King
71%inclusion5 decks7 decks
63%synergy
Vraska, Betrayal's Sting
57%inclusion4 decks7 decks
55%synergy
Vraska's Fall
57%inclusion4 decks7 decks
54%synergy
Lord Skitter's Butcher
57%inclusion4 decks7 decks
54%synergy
Feed the Swarm
57%inclusion4 decks7 decks
7%synergy
Infectious Inquiry
57%inclusion4 decks7 decks
54%synergy
Bontu's Monument
57%inclusion4 decks7 decks
29%synergy
Jet Medallion
57%inclusion4 decks7 decks
-5%synergy
Game Changers
Demonic Tutor
71%inclusion5 decks7 decks
44%synergy
Ancient Tomb
29%inclusion2 decks7 decks
17%synergy
Bolas's Citadel
29%inclusion2 decks7 decks
0%synergy
Vampiric Tutor
29%inclusion2 decks7 decks
8%synergy
Imperial Seal
14%inclusion1 decks7 decks
7%synergy
Chrome Mox
14%inclusion1 decks7 decks
8%synergy
Mox Diamond
14%inclusion1 decks7 decks
11%synergy
Creatures
Nashi, Moon Sage's Scion
57%inclusion4 decks7 decks
53%synergy
Persistent Marshstalker
43%inclusion3 decks7 decks
40%synergy
Crypt Ghast
43%inclusion3 decks7 decks
-5%synergy
Ratcatcher
43%inclusion3 decks7 decks
39%synergy
Relentless Rats
29%inclusion2 decks7 decks
27%synergy
Burglar Rat
29%inclusion2 decks7 decks
18%synergy
Ayara, First of Locthwain
29%inclusion2 decks7 decks
3%synergy
Tangled Colony
29%inclusion2 decks7 decks
25%synergy
Species Specialist
29%inclusion2 decks7 decks
25%synergy
Engine Rat
29%inclusion2 decks7 decks
27%synergy
Voracious Vermin
29%inclusion2 decks7 decks
26%synergy
Changeling Outcast
29%inclusion2 decks7 decks
23%synergy
Nezumi Informant
29%inclusion2 decks7 decks
22%synergy
Nezumi Bone-Reader
29%inclusion2 decks7 decks
28%synergy
Gnat Miser
29%inclusion2 decks7 decks
26%synergy
Typhoid Rats
29%inclusion2 decks7 decks
25%synergy
Stronghold Rats
29%inclusion2 decks7 decks
25%synergy
Rat Colony
29%inclusion2 decks7 decks
23%synergy
Refurbished Familiar
14%inclusion1 decks7 decks
12%synergy
Innocuous Rat
14%inclusion1 decks7 decks
13%synergy
Nezumi Graverobber
14%inclusion1 decks7 decks
13%synergy
Whispering Specter
14%inclusion1 decks7 decks
14%synergy
Rotting Rats
14%inclusion1 decks7 decks
11%synergy
Metallic Mimic
14%inclusion1 decks7 decks
14%synergy
Blood Artist
14%inclusion1 decks7 decks
-18%synergy
Morbid Opportunist
14%inclusion1 decks7 decks
-9%synergy
Crashing Drawbridge
14%inclusion1 decks7 decks
12%synergy
Roaming Throne
14%inclusion1 decks7 decks
11%synergy
Gray Merchant of Asphodel
14%inclusion1 decks7 decks
-37%synergy
Nezumi Shortfang
14%inclusion1 decks7 decks
13%synergy
Insatiable Frugivore
14%inclusion1 decks7 decks
14%synergy
Adaptive Automaton
14%inclusion1 decks7 decks
13%synergy
Throat Slitter
14%inclusion1 decks7 decks
12%synergy
Ink-Eyes, Servant of Oni
14%inclusion1 decks7 decks
11%synergy
Zulaport Cutthroat
14%inclusion1 decks7 decks
-9%synergy
Mogis's Marauder
14%inclusion1 decks7 decks
13%synergy
Chittering Skitterling
14%inclusion1 decks7 decks
13%synergy
Grim Hireling
14%inclusion1 decks7 decks
10%synergy
Chittering Witch
14%inclusion1 decks7 decks
10%synergy
Valley Rotcaller
14%inclusion1 decks7 decks
12%synergy
Twisted Sewer-Witch
14%inclusion1 decks7 decks
13%synergy
Nezumi Cutthroat
14%inclusion1 decks7 decks
14%synergy
Nezumi Prowler
14%inclusion1 decks7 decks
13%synergy
Septic Rats
14%inclusion1 decks7 decks
12%synergy
Wave of Rats
14%inclusion1 decks7 decks
12%synergy
Rancid Rats
14%inclusion1 decks7 decks
12%synergy
Midnight Reaper
14%inclusion1 decks7 decks
6%synergy
Okiba-Gang Shinobi
14%inclusion1 decks7 decks
13%synergy
Venomous Changeling
14%inclusion1 decks7 decks
14%synergy
Ruin Rat
14%inclusion1 decks7 decks
13%synergy
Instants
Go for the Throat
43%inclusion3 decks7 decks
20%synergy
Village Rites
43%inclusion3 decks7 decks
17%synergy
Fell the Profane
29%inclusion2 decks7 decks
10%synergy
Sudden Spoiling
29%inclusion2 decks7 decks
20%synergy
Withering Torment
29%inclusion2 decks7 decks
-3%synergy
Hagra Mauling
14%inclusion1 decks7 decks
10%synergy
Hero's Downfall
14%inclusion1 decks7 decks
8%synergy
Force of Despair
14%inclusion1 decks7 decks
7%synergy
Whisper of the Dross
14%inclusion1 decks7 decks
12%synergy
Imp's Mischief
14%inclusion1 decks7 decks
-10%synergy
Anoint with Affliction
14%inclusion1 decks7 decks
14%synergy
Grim Affliction
14%inclusion1 decks7 decks
12%synergy
Defile
14%inclusion1 decks7 decks
-22%synergy
Culling the Weak
14%inclusion1 decks7 decks
-2%synergy
Raise the Draugr
14%inclusion1 decks7 decks
13%synergy
Tainted Strike
14%inclusion1 decks7 decks
11%synergy
Baleful Mastery
14%inclusion1 decks7 decks
6%synergy
Plumb the Forbidden
14%inclusion1 decks7 decks
10%synergy
Corrupted Conviction
14%inclusion1 decks7 decks
2%synergy
Liliana's Triumph
14%inclusion1 decks7 decks
8%synergy
Curtains' Call
14%inclusion1 decks7 decks
13%synergy
Breathe Your Last
14%inclusion1 decks7 decks
12%synergy
Tragic Slip
14%inclusion1 decks7 decks
-5%synergy
Sorceries
Kindred Dominance
57%inclusion4 decks7 decks
52%synergy
Diabolic Intent
43%inclusion3 decks7 decks
28%synergy
Patriarch's Bidding
43%inclusion3 decks7 decks
39%synergy
Phyresis Outbreak
43%inclusion3 decks7 decks
41%synergy
Drown in Ichor
43%inclusion3 decks7 decks
39%synergy
Pact of the Serpent
43%inclusion3 decks7 decks
41%synergy
Swarmyard Massacre
29%inclusion2 decks7 decks
26%synergy
Agadeem's Awakening
29%inclusion2 decks7 decks
21%synergy
Echoing Return
29%inclusion2 decks7 decks
25%synergy
Night's Whisper
29%inclusion2 decks7 decks
4%synergy
Reanimate
29%inclusion2 decks7 decks
-11%synergy
Toxic Deluge
29%inclusion2 decks7 decks
-8%synergy
Bloodline Bidding
25%inclusion1 decks4 decks
20%synergy
Diabolic Tutor
14%inclusion1 decks7 decks
0%synergy
Profane Tutor
14%inclusion1 decks7 decks
10%synergy
Revenge of the Rats
14%inclusion1 decks7 decks
11%synergy
Torment of Hailfire
14%inclusion1 decks7 decks
-1%synergy
Haunting Voyage
14%inclusion1 decks7 decks
13%synergy
Return from Extinction
14%inclusion1 decks7 decks
14%synergy
Bubbling Muck
14%inclusion1 decks7 decks
-1%synergy
Infernal Tutor
14%inclusion1 decks7 decks
14%synergy
Blasphemous Edict
14%inclusion1 decks7 decks
-2%synergy
Tendrils of Agony
14%inclusion1 decks7 decks
12%synergy
Exsanguinate
14%inclusion1 decks7 decks
-10%synergy
Call to the Netherworld
14%inclusion1 decks7 decks
13%synergy
Insatiable Avarice
14%inclusion1 decks7 decks
3%synergy
Hideous Visage
14%inclusion1 decks7 decks
14%synergy
Phyrexian Tribute
14%inclusion1 decks7 decks
14%synergy
Beseech the Mirror
14%inclusion1 decks7 decks
8%synergy
Damnation
14%inclusion1 decks7 decks
-6%synergy
Disentomb
14%inclusion1 decks7 decks
13%synergy
Grim Tutor
14%inclusion1 decks7 decks
3%synergy
Crippling Fear
14%inclusion1 decks7 decks
11%synergy
Plague of Vermin
14%inclusion1 decks7 decks
12%synergy
Utility Artifacts
Chronicle of Victory
50%inclusion2 decks4 decks
47%synergy
Skullclamp
43%inclusion3 decks7 decks
21%synergy
Expedition Map
43%inclusion3 decks7 decks
31%synergy
Thrumming Stone
43%inclusion3 decks7 decks
39%synergy
Whip of Erebos
29%inclusion2 decks7 decks
18%synergy
Swiftfoot Boots
29%inclusion2 decks7 decks
-3%synergy
The Darkness Crystal
17%inclusion1 decks6 decks
-3%synergy
Genji Glove
17%inclusion1 decks6 decks
16%synergy
Sensei's Divining Top
14%inclusion1 decks7 decks
6%synergy
Soul-Guide Lantern
14%inclusion1 decks7 decks
13%synergy
Icon of Ancestry
14%inclusion1 decks7 decks
13%synergy
Mirror Box
14%inclusion1 decks7 decks
14%synergy
Contagion Clasp
14%inclusion1 decks7 decks
12%synergy
Contagion Engine
14%inclusion1 decks7 decks
12%synergy
Aetherflux Reservoir
14%inclusion1 decks7 decks
5%synergy
Coat of Arms
14%inclusion1 decks7 decks
12%synergy
Scroll Rack
14%inclusion1 decks7 decks
14%synergy
Sword of Truth and Justice
14%inclusion1 decks7 decks
14%synergy
Wishclaw Talisman
14%inclusion1 decks7 decks
8%synergy
Vanquisher's Banner
14%inclusion1 decks7 decks
10%synergy
Recon Craft Theta
14%inclusion1 decks7 decks
14%synergy
Sword of Hearth and Home
14%inclusion1 decks7 decks
13%synergy
Akroma's Memorial
14%inclusion1 decks7 decks
13%synergy
Door of Destinies
14%inclusion1 decks7 decks
12%synergy
Fireshrieker
14%inclusion1 decks7 decks
12%synergy
Lightning Greaves
14%inclusion1 decks7 decks
-19%synergy
Commander's Plate
14%inclusion1 decks7 decks
8%synergy
Conjurer's Closet
14%inclusion1 decks7 decks
12%synergy
Lifeline
14%inclusion1 decks7 decks
14%synergy
Enchantments
Phyrexian Arena
57%inclusion4 decks7 decks
17%synergy
Black Market Connections
43%inclusion3 decks7 decks
19%synergy
Oversold Cemetery
43%inclusion3 decks7 decks
38%synergy
Haunted One
29%inclusion2 decks7 decks
26%synergy
Grave Pact
29%inclusion2 decks7 decks
9%synergy
Black Market
14%inclusion1 decks7 decks
-7%synergy
Contamination
14%inclusion1 decks7 decks
11%synergy
Phyrexian Reclamation
14%inclusion1 decks7 decks
4%synergy
Dictate of Erebos
14%inclusion1 decks7 decks
3%synergy
Exquisite Blood
14%inclusion1 decks7 decks
1%synergy
Dauthi Embrace
14%inclusion1 decks7 decks
13%synergy
Gate to Phyrexia
14%inclusion1 decks7 decks
14%synergy
Bandit's Talent
14%inclusion1 decks7 decks
9%synergy
Bastion of Remembrance
14%inclusion1 decks7 decks
-3%synergy
Lord Skitter's Blessing
14%inclusion1 decks7 decks
14%synergy
Nowhere to Run
14%inclusion1 decks7 decks
11%synergy
Dark Prophecy
14%inclusion1 decks7 decks
10%synergy
Necrogen Communion
14%inclusion1 decks7 decks
13%synergy
Planeswalkers
Liliana of the Dark Realms
43%inclusion3 decks7 decks
29%synergy
Davriel, Rogue Shadowmage
14%inclusion1 decks7 decks
13%synergy
Utility Lands
Cabal Coffers
86%inclusion6 decks7 decks
31%synergy
Urborg, Tomb of Yawgmoth
86%inclusion6 decks7 decks
48%synergy
Nykthos, Shrine to Nyx
71%inclusion5 decks7 decks
42%synergy
Cabal Stronghold
57%inclusion4 decks7 decks
23%synergy
War Room
43%inclusion3 decks7 decks
27%synergy
Karn's Bastion
43%inclusion3 decks7 decks
39%synergy
Three Tree City
43%inclusion3 decks7 decks
38%synergy
Rogue's Passage
43%inclusion3 decks7 decks
24%synergy
Secret Tunnel
40%inclusion2 decks5 decks
39%synergy
Bojuka Bog
29%inclusion2 decks7 decks
-18%synergy
Mortuary Mire
29%inclusion2 decks7 decks
15%synergy
Crypt of Agadeem
29%inclusion2 decks7 decks
17%synergy
Volrath's Stronghold
29%inclusion2 decks7 decks
25%synergy
Deserted Temple
29%inclusion2 decks7 decks
24%synergy
Takenuma, Abandoned Mire
29%inclusion2 decks7 decks
13%synergy
Mudflat Village
29%inclusion2 decks7 decks
26%synergy
Shizo, Death's Storehouse
14%inclusion1 decks7 decks
4%synergy
Phyrexian Tower
14%inclusion1 decks7 decks
-11%synergy
Soulstone Sanctuary
14%inclusion1 decks7 decks
14%synergy
Vesuva
14%inclusion1 decks7 decks
11%synergy
Urza's Saga
14%inclusion1 decks7 decks
6%synergy
Inkmoth Nexus
14%inclusion1 decks7 decks
13%synergy
Mutavault
14%inclusion1 decks7 decks
14%synergy
Witch's Cottage
14%inclusion1 decks7 decks
-10%synergy
Inventors' Fair
14%inclusion1 decks7 decks
12%synergy
Thespian's Stage
14%inclusion1 decks7 decks
9%synergy
Lake of the Dead
14%inclusion1 decks7 decks
9%synergy
Castle Locthwain
14%inclusion1 decks7 decks
-3%synergy
Reliquary Tower
14%inclusion1 decks7 decks
-16%synergy
Strip Mine
14%inclusion1 decks7 decks
11%synergy
Access Tunnel
14%inclusion1 decks7 decks
11%synergy
Mana Artifacts
Sol Ring
86%inclusion6 decks7 decks
0%synergy
The Soul Stone
50%inclusion3 decks6 decks
35%synergy
Arcane Signet
43%inclusion3 decks7 decks
-19%synergy
Staff of Compleation
43%inclusion3 decks7 decks
41%synergy
Glistening Sphere
43%inclusion3 decks7 decks
42%synergy
Heraldic Banner
29%inclusion2 decks7 decks
23%synergy
Nyx Lotus
29%inclusion2 decks7 decks
22%synergy
Gauntlet of Power
14%inclusion1 decks7 decks
11%synergy
Patchwork Banner
14%inclusion1 decks7 decks
10%synergy
Throne of Eldraine
14%inclusion1 decks7 decks
5%synergy
Liquimetal Torque
14%inclusion1 decks7 decks
11%synergy
Mind Stone
14%inclusion1 decks7 decks
-14%synergy
Sceptre of Eternal Glory
14%inclusion1 decks7 decks
6%synergy
Lands
Swamp
100%inclusion7 decks7 decks
5%synergy
Cavern of Souls
86%inclusion6 decks7 decks
79%synergy
Path of Ancestry
43%inclusion3 decks7 decks
38%synergy
Fell the Profane
29%inclusion2 decks7 decks
10%synergy
Agadeem's Awakening
29%inclusion2 decks7 decks
21%synergy
Hagra Mauling
14%inclusion1 decks7 decks
10%synergy
Prismatic Vista
14%inclusion1 decks7 decks
12%synergy
Urza's Cave
14%inclusion1 decks7 decks
6%synergy
Ash Barrens
14%inclusion1 decks7 decks
13%synergy
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