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

Karumonix, the Rat King
Rank #407
9decks
As CommanderAs CardAverage DeckDecks
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1
234
5
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%inclusion9 decks9 decks
97%synergy
Ashcoat of the Shadow Swarm
100%inclusion9 decks9 decks
96%synergy
Swarmyard
89%inclusion8 decks9 decks
83%synergy
Piper of the Swarm
89%inclusion8 decks9 decks
82%synergy
Ogre Slumlord
89%inclusion8 decks9 decks
79%synergy
Ichor Rats
78%inclusion7 decks9 decks
75%synergy
Cover of Darkness
78%inclusion7 decks9 decks
75%synergy
Pack Rat
78%inclusion7 decks9 decks
72%synergy
Infectious Inquiry
67%inclusion6 decks9 decks
64%synergy
Ratcatcher
67%inclusion6 decks9 decks
63%synergy
Top Cards
Dark Ritual
78%inclusion7 decks9 decks
11%synergy
Jet Medallion
78%inclusion7 decks9 decks
16%synergy
Blightbelly Rat
67%inclusion6 decks9 decks
63%synergy
Herald's Horn
67%inclusion6 decks9 decks
61%synergy
Lord Skitter, Sewer King
67%inclusion6 decks9 decks
59%synergy
Lord Skitter's Butcher
56%inclusion5 decks9 decks
53%synergy
Feed the Swarm
56%inclusion5 decks9 decks
5%synergy
Persistent Marshstalker
56%inclusion5 decks9 decks
53%synergy
Bontu's Monument
56%inclusion5 decks9 decks
28%synergy
Kindred Dominance
56%inclusion5 decks9 decks
51%synergy
Game Changers
Demonic Tutor
89%inclusion8 decks9 decks
62%synergy
Bolas's Citadel
44%inclusion4 decks9 decks
16%synergy
Vampiric Tutor
44%inclusion4 decks9 decks
24%synergy
Imperial Seal
33%inclusion3 decks9 decks
26%synergy
Ancient Tomb
22%inclusion2 decks9 decks
11%synergy
Necropotence
11%inclusion1 decks9 decks
-3%synergy
Creatures
Crypt Ghast
44%inclusion4 decks9 decks
-2%synergy
Nashi, Moon Sage's Scion
44%inclusion4 decks9 decks
41%synergy
Relentless Rats
33%inclusion3 decks9 decks
32%synergy
Ayara, First of Locthwain
33%inclusion3 decks9 decks
8%synergy
Tangled Colony
33%inclusion3 decks9 decks
30%synergy
Species Specialist
33%inclusion3 decks9 decks
30%synergy
Changeling Outcast
33%inclusion3 decks9 decks
28%synergy
Septic Rats
33%inclusion3 decks9 decks
32%synergy
Gnat Miser
33%inclusion3 decks9 decks
31%synergy
Typhoid Rats
33%inclusion3 decks9 decks
30%synergy
Stronghold Rats
33%inclusion3 decks9 decks
30%synergy
Rat Colony
33%inclusion3 decks9 decks
28%synergy
Burglar Rat
22%inclusion2 decks9 decks
12%synergy
Roaming Throne
22%inclusion2 decks9 decks
19%synergy
Gray Merchant of Asphodel
22%inclusion2 decks9 decks
-28%synergy
Ink-Eyes, Servant of Oni
22%inclusion2 decks9 decks
19%synergy
Engine Rat
22%inclusion2 decks9 decks
20%synergy
Chittering Skitterling
22%inclusion2 decks9 decks
21%synergy
Voracious Vermin
22%inclusion2 decks9 decks
19%synergy
Valley Rotcaller
22%inclusion2 decks9 decks
19%synergy
Twisted Sewer-Witch
22%inclusion2 decks9 decks
21%synergy
Nezumi Cutthroat
22%inclusion2 decks9 decks
22%synergy
Nezumi Informant
22%inclusion2 decks9 decks
16%synergy
Nezumi Bone-Reader
22%inclusion2 decks9 decks
21%synergy
Rancid Rats
22%inclusion2 decks9 decks
20%synergy
Rat King, Verminister
20%inclusion1 decks5 decks
17%synergy
Rat King, Pale Piper
20%inclusion1 decks5 decks
16%synergy
Plague Stinger
11%inclusion1 decks9 decks
10%synergy
Tree of Perdition
11%inclusion1 decks9 decks
9%synergy
Crypt Rats
11%inclusion1 decks9 decks
7%synergy
Innocuous Rat
11%inclusion1 decks9 decks
10%synergy
Nezumi Graverobber
11%inclusion1 decks9 decks
10%synergy
Whispering Specter
11%inclusion1 decks9 decks
10%synergy
Ravenous Rats
11%inclusion1 decks9 decks
9%synergy
Blood Artist
11%inclusion1 decks9 decks
-20%synergy
Morbid Opportunist
11%inclusion1 decks9 decks
-13%synergy
Crashing Drawbridge
11%inclusion1 decks9 decks
9%synergy
Mukotai Ambusher
11%inclusion1 decks9 decks
10%synergy
Nezumi Shortfang
11%inclusion1 decks9 decks
10%synergy
Adaptive Automaton
11%inclusion1 decks9 decks
10%synergy
Throat Slitter
11%inclusion1 decks9 decks
9%synergy
Zodiac Rat
11%inclusion1 decks9 decks
11%synergy
Locust Miser
11%inclusion1 decks9 decks
10%synergy
Zulaport Cutthroat
11%inclusion1 decks9 decks
-12%synergy
Mogis's Marauder
11%inclusion1 decks9 decks
10%synergy
Swarm of Rats
11%inclusion1 decks9 decks
9%synergy
Grim Hireling
11%inclusion1 decks9 decks
7%synergy
Chittering Witch
11%inclusion1 decks9 decks
7%synergy
Nezumi Prowler
11%inclusion1 decks9 decks
10%synergy
Wave of Rats
11%inclusion1 decks9 decks
9%synergy
Instants
Deadly Rollick
44%inclusion4 decks9 decks
19%synergy
Go for the Throat
44%inclusion4 decks9 decks
22%synergy
Vraska's Fall
44%inclusion4 decks9 decks
41%synergy
Village Rites
44%inclusion4 decks9 decks
19%synergy
Whisper of the Dross
33%inclusion3 decks9 decks
31%synergy
Grim Affliction
33%inclusion3 decks9 decks
32%synergy
Culling the Weak
33%inclusion3 decks9 decks
15%synergy
Tragic Slip
33%inclusion3 decks9 decks
14%synergy
Fell the Profane
22%inclusion2 decks9 decks
3%synergy
Defile
22%inclusion2 decks9 decks
-13%synergy
Cabal Ritual
22%inclusion2 decks9 decks
3%synergy
Sudden Spoiling
22%inclusion2 decks9 decks
14%synergy
Withering Torment
22%inclusion2 decks9 decks
-9%synergy
Hagra Mauling
11%inclusion1 decks9 decks
7%synergy
Hero's Downfall
11%inclusion1 decks9 decks
5%synergy
Force of Despair
11%inclusion1 decks9 decks
4%synergy
Sheoldred's Edict
11%inclusion1 decks9 decks
-4%synergy
Imp's Mischief
11%inclusion1 decks9 decks
-14%synergy
Songs of the Damned
11%inclusion1 decks9 decks
5%synergy
Anoint with Affliction
11%inclusion1 decks9 decks
11%synergy
Doom Blade
11%inclusion1 decks9 decks
4%synergy
Withering Boon
11%inclusion1 decks9 decks
7%synergy
Bitter Triumph
11%inclusion1 decks9 decks
1%synergy
Raise the Draugr
11%inclusion1 decks9 decks
10%synergy
Undying Malice
11%inclusion1 decks9 decks
1%synergy
Darkness
11%inclusion1 decks9 decks
1%synergy
Malakir Rebirth
11%inclusion1 decks9 decks
-12%synergy
Baleful Mastery
11%inclusion1 decks9 decks
3%synergy
Plumb the Forbidden
11%inclusion1 decks9 decks
7%synergy
Corrupted Conviction
11%inclusion1 decks9 decks
-1%synergy
Liliana's Triumph
11%inclusion1 decks9 decks
5%synergy
Curtains' Call
11%inclusion1 decks9 decks
10%synergy
Breathe Your Last
11%inclusion1 decks9 decks
9%synergy
Feign Death
11%inclusion1 decks9 decks
3%synergy
Sorceries
Drown in Ichor
56%inclusion5 decks9 decks
52%synergy
Swarmyard Massacre
44%inclusion4 decks9 decks
42%synergy
Bloodline Bidding
40%inclusion2 decks5 decks
36%synergy
Diabolic Intent
33%inclusion3 decks9 decks
18%synergy
Patriarch's Bidding
33%inclusion3 decks9 decks
29%synergy
Bubbling Muck
33%inclusion3 decks9 decks
18%synergy
Phyresis Outbreak
33%inclusion3 decks9 decks
32%synergy
Night's Whisper
33%inclusion3 decks9 decks
8%synergy
Diabolic Tutor
22%inclusion2 decks9 decks
9%synergy
Revenge of the Rats
22%inclusion2 decks9 decks
19%synergy
Agadeem's Awakening
22%inclusion2 decks9 decks
14%synergy
Exsanguinate
22%inclusion2 decks9 decks
-2%synergy
Toxic Deluge
22%inclusion2 decks9 decks
-15%synergy
Grim Tutor
22%inclusion2 decks9 decks
11%synergy
Pact of the Serpent
22%inclusion2 decks9 decks
21%synergy
Damnable Pact
11%inclusion1 decks9 decks
7%synergy
Torment of Hailfire
11%inclusion1 decks9 decks
-4%synergy
Return from Extinction
11%inclusion1 decks9 decks
11%synergy
Echoing Return
11%inclusion1 decks9 decks
8%synergy
Infernal Tutor
11%inclusion1 decks9 decks
11%synergy
Blasphemous Edict
11%inclusion1 decks9 decks
-5%synergy
Living Death
11%inclusion1 decks9 decks
1%synergy
Reanimate
11%inclusion1 decks9 decks
-30%synergy
Call to the Netherworld
11%inclusion1 decks9 decks
10%synergy
Hideous Visage
11%inclusion1 decks9 decks
11%synergy
Phyrexian Tribute
11%inclusion1 decks9 decks
11%synergy
Sign in Blood
11%inclusion1 decks9 decks
-24%synergy
Beseech the Mirror
11%inclusion1 decks9 decks
4%synergy
Damnation
11%inclusion1 decks9 decks
-9%synergy
Disentomb
11%inclusion1 decks9 decks
10%synergy
Rise of the Dark Realms
11%inclusion1 decks9 decks
-2%synergy
Crippling Fear
11%inclusion1 decks9 decks
8%synergy
Utility Artifacts
Chronicle of Victory
60%inclusion3 decks5 decks
57%synergy
Whip of Erebos
44%inclusion4 decks9 decks
33%synergy
Coat of Arms
44%inclusion4 decks9 decks
42%synergy
Skullclamp
44%inclusion4 decks9 decks
22%synergy
Door of Destinies
44%inclusion4 decks9 decks
42%synergy
Thrumming Stone
44%inclusion4 decks9 decks
40%synergy
Expedition Map
33%inclusion3 decks9 decks
22%synergy
Swiftfoot Boots
33%inclusion3 decks9 decks
2%synergy
Lightning Greaves
33%inclusion3 decks9 decks
-1%synergy
Icon of Ancestry
22%inclusion2 decks9 decks
21%synergy
Contagion Clasp
22%inclusion2 decks9 decks
20%synergy
Sword of Truth and Justice
22%inclusion2 decks9 decks
22%synergy
Banner of Kinship
22%inclusion2 decks9 decks
20%synergy
Vanquisher's Banner
22%inclusion2 decks9 decks
18%synergy
Akroma's Memorial
22%inclusion2 decks9 decks
21%synergy
Gathering Stone
20%inclusion1 decks5 decks
19%synergy
The Darkness Crystal
13%inclusion1 decks8 decks
-8%synergy
Genji Glove
13%inclusion1 decks8 decks
11%synergy
Campfire
11%inclusion1 decks9 decks
10%synergy
Perpetual Timepiece
11%inclusion1 decks9 decks
9%synergy
Soul-Guide Lantern
11%inclusion1 decks9 decks
10%synergy
Elixir of Immortality
11%inclusion1 decks9 decks
9%synergy
Mirror Box
11%inclusion1 decks9 decks
10%synergy
Contagion Engine
11%inclusion1 decks9 decks
9%synergy
Scroll Rack
11%inclusion1 decks9 decks
11%synergy
Cliffhaven Kitesail
11%inclusion1 decks9 decks
11%synergy
Wishclaw Talisman
11%inclusion1 decks9 decks
4%synergy
Helm of the Host
11%inclusion1 decks9 decks
10%synergy
Thran Foundry
11%inclusion1 decks9 decks
11%synergy
Sword of Hearth and Home
11%inclusion1 decks9 decks
10%synergy
Whispersilk Cloak
11%inclusion1 decks9 decks
5%synergy
Feldon's Cane
11%inclusion1 decks9 decks
11%synergy
Fireshrieker
11%inclusion1 decks9 decks
9%synergy
Mindcrank
11%inclusion1 decks9 decks
6%synergy
Commander's Plate
11%inclusion1 decks9 decks
5%synergy
Conjurer's Closet
11%inclusion1 decks9 decks
9%synergy
Thornbite Staff
11%inclusion1 decks9 decks
8%synergy
Lifeline
11%inclusion1 decks9 decks
11%synergy
Enchantments
Grave Pact
44%inclusion4 decks9 decks
25%synergy
Oversold Cemetery
44%inclusion4 decks9 decks
39%synergy
Phyrexian Arena
44%inclusion4 decks9 decks
5%synergy
Haunted One
33%inclusion3 decks9 decks
31%synergy
Black Market Connections
33%inclusion3 decks9 decks
8%synergy
Black Market
22%inclusion2 decks9 decks
2%synergy
Bastion of Remembrance
22%inclusion2 decks9 decks
5%synergy
Necrogen Communion
22%inclusion2 decks9 decks
21%synergy
Phyrexian Reclamation
11%inclusion1 decks9 decks
1%synergy
Dictate of Erebos
11%inclusion1 decks9 decks
0%synergy
Exquisite Blood
11%inclusion1 decks9 decks
-2%synergy
Intimidation
11%inclusion1 decks9 decks
11%synergy
Infernal Tribute
11%inclusion1 decks9 decks
11%synergy
Dauthi Embrace
11%inclusion1 decks9 decks
9%synergy
Gate to Phyrexia
11%inclusion1 decks9 decks
10%synergy
Bandit's Talent
11%inclusion1 decks9 decks
6%synergy
Painful Quandary
11%inclusion1 decks9 decks
1%synergy
Lord Skitter's Blessing
11%inclusion1 decks9 decks
10%synergy
Bloodchief Ascension
11%inclusion1 decks9 decks
2%synergy
Nowhere to Run
11%inclusion1 decks9 decks
8%synergy
Dark Prophecy
11%inclusion1 decks9 decks
7%synergy
Planeswalkers
Vraska, Betrayal's Sting
44%inclusion4 decks9 decks
42%synergy
Liliana of the Dark Realms
22%inclusion2 decks9 decks
9%synergy
Utility Lands
Cabal Coffers
89%inclusion8 decks9 decks
34%synergy
Urborg, Tomb of Yawgmoth
78%inclusion7 decks9 decks
40%synergy
Cabal Stronghold
56%inclusion5 decks9 decks
22%synergy
Nykthos, Shrine to Nyx
56%inclusion5 decks9 decks
26%synergy
Secret Tunnel
50%inclusion3 decks6 decks
49%synergy
Bojuka Bog
44%inclusion4 decks9 decks
-3%synergy
Karn's Bastion
44%inclusion4 decks9 decks
41%synergy
Rogue's Passage
44%inclusion4 decks9 decks
25%synergy
Phyrexian Tower
33%inclusion3 decks9 decks
7%synergy
Crypt of Agadeem
33%inclusion3 decks9 decks
22%synergy
War Room
33%inclusion3 decks9 decks
17%synergy
Volrath's Stronghold
33%inclusion3 decks9 decks
30%synergy
Mudflat Village
33%inclusion3 decks9 decks
31%synergy
Three Tree City
33%inclusion3 decks9 decks
29%synergy
Shizo, Death's Storehouse
22%inclusion2 decks9 decks
12%synergy
Witch's Cottage
22%inclusion2 decks9 decks
-2%synergy
Takenuma, Abandoned Mire
22%inclusion2 decks9 decks
6%synergy
Castle Locthwain
22%inclusion2 decks9 decks
6%synergy
RELIQUARY TOWER
22%inclusion2 decks9 decks
-7%synergy
Mortuary Mire
11%inclusion1 decks9 decks
-2%synergy
Soulstone Sanctuary
11%inclusion1 decks9 decks
11%synergy
Vesuva
11%inclusion1 decks9 decks
8%synergy
Inkmoth Nexus
11%inclusion1 decks9 decks
10%synergy
Mutavault
11%inclusion1 decks9 decks
10%synergy
Inventors' Fair
11%inclusion1 decks9 decks
9%synergy
Deserted Temple
11%inclusion1 decks9 decks
7%synergy
Thespian's Stage
11%inclusion1 decks9 decks
6%synergy
Lake of the Dead
11%inclusion1 decks9 decks
6%synergy
Strip Mine
11%inclusion1 decks9 decks
8%synergy
Access Tunnel
11%inclusion1 decks9 decks
8%synergy
Mana Artifacts
Sol Ring
89%inclusion8 decks9 decks
3%synergy
Glistening Sphere
44%inclusion4 decks9 decks
43%synergy
The Soul Stone
43%inclusion3 decks7 decks
27%synergy
Arcane Signet
33%inclusion3 decks9 decks
-28%synergy
Staff of Compleation
33%inclusion3 decks9 decks
32%synergy
Heraldic Banner
22%inclusion2 decks9 decks
17%synergy
Mind Stone
22%inclusion2 decks9 decks
-6%synergy
Caged Sun
11%inclusion1 decks9 decks
1%synergy
Gauntlet of Power
11%inclusion1 decks9 decks
8%synergy
Patchwork Banner
11%inclusion1 decks9 decks
7%synergy
Throne of Eldraine
11%inclusion1 decks9 decks
2%synergy
Thought Vessel
11%inclusion1 decks9 decks
-13%synergy
Worn Powerstone
11%inclusion1 decks9 decks
7%synergy
Liquimetal Torque
11%inclusion1 decks9 decks
8%synergy
Phyrexian Atlas
11%inclusion1 decks9 decks
11%synergy
Springleaf Drum
11%inclusion1 decks9 decks
9%synergy
Sceptre of Eternal Glory
11%inclusion1 decks9 decks
3%synergy
Lands
Swamp
100%inclusion9 decks9 decks
5%synergy
Cavern of Souls
67%inclusion6 decks9 decks
60%synergy
Path of Ancestry
56%inclusion5 decks9 decks
51%synergy
Fell the Profane
22%inclusion2 decks9 decks
3%synergy
Agadeem's Awakening
22%inclusion2 decks9 decks
14%synergy
Hagra Mauling
11%inclusion1 decks9 decks
7%synergy
Prismatic Vista
11%inclusion1 decks9 decks
9%synergy
Terramorphic Expanse
11%inclusion1 decks9 decks
8%synergy
Myriad Landscape
11%inclusion1 decks9 decks
-13%synergy
Urza's Cave
11%inclusion1 decks9 decks
3%synergy
Ash Barrens
11%inclusion1 decks9 decks
10%synergy
Verdant Catacombs
11%inclusion1 decks9 decks
8%synergy
Malakir Rebirth
11%inclusion1 decks9 decks
-12%synergy
Evolving Wilds
11%inclusion1 decks9 decks
7%synergy
Marsh Flats
11%inclusion1 decks9 decks
7%synergy
Polluted Delta
11%inclusion1 decks9 decks
7%synergy
Bloodstained Mire
11%inclusion1 decks9 decks
7%synergy
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