Karumonix, the Rat King (Commander) - Expensive Core Rats

Karumonix, the Rat King
Rank #381
3decks
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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Emeritus of Woe
100%inclusion1 decks1 decks
93%synergy
Game Changers
Demonic Tutor
33%inclusion1 decks3 decks
6%synergy
Creatures
Marrow-Gnawer
100%inclusion3 decks3 decks
97%synergy
Ashcoat of the Shadow Swarm
100%inclusion3 decks3 decks
97%synergy
Piper of the Swarm
100%inclusion3 decks3 decks
93%synergy
Rat King, Verminister
100%inclusion1 decks1 decks
97%synergy
Rat King, Pale Piper
100%inclusion1 decks1 decks
96%synergy
Ogre Slumlord
67%inclusion2 decks3 decks
57%synergy
Ayara, First of Locthwain
67%inclusion2 decks3 decks
41%synergy
Species Specialist
67%inclusion2 decks3 decks
63%synergy
Persistent Marshstalker
67%inclusion2 decks3 decks
64%synergy
Valley Rotcaller
67%inclusion2 decks3 decks
64%synergy
Crypt Ghast
67%inclusion2 decks3 decks
19%synergy
Ratcatcher
67%inclusion2 decks3 decks
63%synergy
Gnat Miser
67%inclusion2 decks3 decks
64%synergy
Nashi, Moon Sage's Scion
67%inclusion2 decks3 decks
63%synergy
Lord Skitter, Sewer King
67%inclusion2 decks3 decks
58%synergy
Patron of the Nezumi
33%inclusion1 decks3 decks
33%synergy
Crypt Rats
33%inclusion1 decks3 decks
29%synergy
Nezumi Graverobber
33%inclusion1 decks3 decks
32%synergy
Metallic Mimic
33%inclusion1 decks3 decks
33%synergy
Crashing Drawbridge
33%inclusion1 decks3 decks
31%synergy
Roaming Throne
33%inclusion1 decks3 decks
30%synergy
Tangled Colony
33%inclusion1 decks3 decks
30%synergy
Filth
33%inclusion1 decks3 decks
31%synergy
Lord Skitter's Butcher
33%inclusion1 decks3 decks
30%synergy
Adaptive Automaton
33%inclusion1 decks3 decks
32%synergy
Pack Rat
33%inclusion1 decks3 decks
27%synergy
Throat Slitter
33%inclusion1 decks3 decks
31%synergy
Ink-Eyes, Servant of Oni
33%inclusion1 decks3 decks
30%synergy
Locust Miser
33%inclusion1 decks3 decks
32%synergy
Chittering Skitterling
33%inclusion1 decks3 decks
32%synergy
Twisted Sewer-Witch
33%inclusion1 decks3 decks
32%synergy
Changeling Outcast
33%inclusion1 decks3 decks
28%synergy
Blightbelly Rat
33%inclusion1 decks3 decks
30%synergy
Septic Rats
33%inclusion1 decks3 decks
31%synergy
Rancid Rats
33%inclusion1 decks3 decks
31%synergy
Stronghold Rats
33%inclusion1 decks3 decks
30%synergy
Rat Colony
33%inclusion1 decks3 decks
28%synergy
Ichor Rats
33%inclusion1 decks3 decks
30%synergy
Instants
Sudden Spoiling
100%inclusion3 decks3 decks
91%synergy
Fell the Profane
33%inclusion1 decks3 decks
14%synergy
Go for the Throat
33%inclusion1 decks3 decks
10%synergy
Vraska's Fall
33%inclusion1 decks3 decks
30%synergy
Village Rites
33%inclusion1 decks3 decks
8%synergy
Consuming Corruption
33%inclusion1 decks3 decks
18%synergy
Anoint with Affliction
33%inclusion1 decks3 decks
33%synergy
Grim Affliction
33%inclusion1 decks3 decks
31%synergy
Defile
33%inclusion1 decks3 decks
-3%synergy
Dark Ritual
33%inclusion1 decks3 decks
-33%synergy
Dash Hopes
33%inclusion1 decks3 decks
32%synergy
Withering Boon
33%inclusion1 decks3 decks
29%synergy
Tainted Strike
33%inclusion1 decks3 decks
30%synergy
Malakir Rebirth
33%inclusion1 decks3 decks
10%synergy
Plumb the Forbidden
33%inclusion1 decks3 decks
29%synergy
Withering Torment
33%inclusion1 decks3 decks
2%synergy
Sorceries
Phyresis Outbreak
100%inclusion3 decks3 decks
98%synergy
Swarmyard Massacre
67%inclusion2 decks3 decks
64%synergy
Victimize
33%inclusion1 decks3 decks
6%synergy
Revenge of the Rats
33%inclusion1 decks3 decks
30%synergy
Torment of Hailfire
33%inclusion1 decks3 decks
18%synergy
Bubbling Muck
33%inclusion1 decks3 decks
18%synergy
Feed the Infection
33%inclusion1 decks3 decks
33%synergy
Feed the Swarm
33%inclusion1 decks3 decks
-17%synergy
Infectious Inquiry
33%inclusion1 decks3 decks
31%synergy
Exsanguinate
33%inclusion1 decks3 decks
9%synergy
Buried Alive
33%inclusion1 decks3 decks
21%synergy
Reanimate
33%inclusion1 decks3 decks
-6%synergy
Geth's Summons
33%inclusion1 decks3 decks
33%synergy
Kindred Dominance
33%inclusion1 decks3 decks
29%synergy
Eaten Alive
33%inclusion1 decks3 decks
30%synergy
Drown in Ichor
33%inclusion1 decks3 decks
30%synergy
Crippling Fear
33%inclusion1 decks3 decks
30%synergy
Plague of Vermin
33%inclusion1 decks3 decks
31%synergy
Utility Artifacts
Jet Medallion
100%inclusion3 decks3 decks
38%synergy
Chronicle of Victory
100%inclusion1 decks1 decks
97%synergy
Contagion Engine
67%inclusion2 decks3 decks
65%synergy
Ashnod's Altar
67%inclusion2 decks3 decks
47%synergy
Whip of Erebos
67%inclusion2 decks3 decks
56%synergy
Skullclamp
67%inclusion2 decks3 decks
45%synergy
Bontu's Monument
67%inclusion2 decks3 decks
38%synergy
Akroma's Memorial
67%inclusion2 decks3 decks
66%synergy
Herald's Horn
67%inclusion2 decks3 decks
61%synergy
Contagion Clasp
33%inclusion1 decks3 decks
31%synergy
Coat of Arms
33%inclusion1 decks3 decks
31%synergy
Sword of Truth and Justice
33%inclusion1 decks3 decks
33%synergy
Stoneforge Masterwork
33%inclusion1 decks3 decks
33%synergy
Banner of Kinship
33%inclusion1 decks3 decks
31%synergy
Vanquisher's Banner
33%inclusion1 decks3 decks
29%synergy
Maskwood Nexus
33%inclusion1 decks3 decks
32%synergy
Door of Destinies
33%inclusion1 decks3 decks
31%synergy
Eldrazi Monument
33%inclusion1 decks3 decks
32%synergy
Lightning Greaves
33%inclusion1 decks3 decks
0%synergy
Grafted Exoskeleton
33%inclusion1 decks3 decks
32%synergy
The Darkness Crystal
33%inclusion1 decks3 decks
13%synergy
Enchantments
Oversold Cemetery
100%inclusion3 decks3 decks
95%synergy
The Meathook Massacre
67%inclusion2 decks3 decks
49%synergy
Grave Pact
67%inclusion2 decks3 decks
47%synergy
Dictate of Erebos
67%inclusion2 decks3 decks
56%synergy
Black Market
33%inclusion1 decks3 decks
12%synergy
Phyrexian Reclamation
33%inclusion1 decks3 decks
23%synergy
Vampiric Rites
33%inclusion1 decks3 decks
27%synergy
Meathook Massacre II
33%inclusion1 decks3 decks
27%synergy
Funeral Room // Awakening Hall
33%inclusion1 decks3 decks
29%synergy
Attrition
33%inclusion1 decks3 decks
31%synergy
Black Market Connections
33%inclusion1 decks3 decks
9%synergy
Cover of Darkness
33%inclusion1 decks3 decks
30%synergy
Dark Prophecy
33%inclusion1 decks3 decks
29%synergy
Necrogen Communion
33%inclusion1 decks3 decks
32%synergy
Sothera, the Supervoid
33%inclusion1 decks3 decks
30%synergy
Planeswalkers
Vraska, Betrayal's Sting
67%inclusion2 decks3 decks
64%synergy
Liliana of the Dark Realms
67%inclusion2 decks3 decks
53%synergy
Utility Lands
Cabal Stronghold
100%inclusion3 decks3 decks
65%synergy
Swarmyard
100%inclusion3 decks3 decks
94%synergy
Cabal Coffers
100%inclusion3 decks3 decks
45%synergy
Nykthos, Shrine to Nyx
100%inclusion3 decks3 decks
70%synergy
Minas Morgul, Dark Fortress
100%inclusion3 decks3 decks
97%synergy
Three Tree City
100%inclusion3 decks3 decks
95%synergy
Urborg, Tomb of Yawgmoth
100%inclusion3 decks3 decks
62%synergy
Rogue's Passage
100%inclusion3 decks3 decks
81%synergy
Secret Tunnel
100%inclusion2 decks2 decks
99%synergy
Shizo, Death's Storehouse
67%inclusion2 decks3 decks
57%synergy
Phyrexian Tower
67%inclusion2 decks3 decks
41%synergy
Mortuary Mire
67%inclusion2 decks3 decks
54%synergy
Crypt of Agadeem
67%inclusion2 decks3 decks
55%synergy
Karn's Bastion
67%inclusion2 decks3 decks
63%synergy
Mudflat Village
67%inclusion2 decks3 decks
64%synergy
Reliquary Tower
67%inclusion2 decks3 decks
36%synergy
Bojuka Bog
33%inclusion1 decks3 decks
-14%synergy
Westvale Abbey
33%inclusion1 decks3 decks
27%synergy
Witch's Cottage
33%inclusion1 decks3 decks
9%synergy
War Room
33%inclusion1 decks3 decks
17%synergy
Access Tunnel
33%inclusion1 decks3 decks
30%synergy
Midgar, City of Mako
33%inclusion1 decks3 decks
22%synergy
Susur Secundi, Void Altar
33%inclusion1 decks3 decks
26%synergy
Mana Artifacts
Gauntlet of Power
67%inclusion2 decks3 decks
63%synergy
Glistening Sphere
67%inclusion2 decks3 decks
65%synergy
Patchwork Banner
67%inclusion2 decks3 decks
62%synergy
The Soul Stone
67%inclusion2 decks3 decks
52%synergy
Caged Sun
33%inclusion1 decks3 decks
22%synergy
Heraldic Banner
33%inclusion1 decks3 decks
28%synergy
Throne of Eldraine
33%inclusion1 decks3 decks
24%synergy
Sol Ring
33%inclusion1 decks3 decks
-52%synergy
Thought Vessel
33%inclusion1 decks3 decks
8%synergy
Phyrexian Atlas
33%inclusion1 decks3 decks
33%synergy
Lands
Swamp
100%inclusion3 decks3 decks
5%synergy
Path of Ancestry
100%inclusion3 decks3 decks
95%synergy
Big Apple, 3 a.m.
100%inclusion1 decks1 decks
98%synergy
Cavern of Souls
67%inclusion2 decks3 decks
60%synergy
Fell the Profane
33%inclusion1 decks3 decks
14%synergy
Malakir Rebirth
33%inclusion1 decks3 decks
10%synergy
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