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

Karumonix, the Rat King
Rank #384
2decks
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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Planeswalkers
Utility Lands
Mana Artifacts
Lands
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Shredder's Technique
100%inclusion1 decks1 decks
96%synergy
Rat King, Pale Piper
100%inclusion1 decks1 decks
96%synergy
Game Changers
Demonic Tutor
100%inclusion2 decks2 decks
73%synergy
Vampiric Tutor
100%inclusion2 decks2 decks
79%synergy
The One Ring
50%inclusion1 decks2 decks
41%synergy
Creatures
Ogre Slumlord
100%inclusion2 decks2 decks
90%synergy
Marrow-Gnawer
100%inclusion2 decks2 decks
97%synergy
Adaptive Automaton
100%inclusion2 decks2 decks
99%synergy
Pack Rat
100%inclusion2 decks2 decks
94%synergy
Valley Rotcaller
100%inclusion2 decks2 decks
97%synergy
Twisted Sewer-Witch
100%inclusion2 decks2 decks
98%synergy
Ashcoat of the Shadow Swarm
100%inclusion2 decks2 decks
97%synergy
Piper of the Swarm
100%inclusion2 decks2 decks
93%synergy
Ratcatcher
100%inclusion2 decks2 decks
97%synergy
Blightbelly Rat
100%inclusion2 decks2 decks
96%synergy
Gnat Miser
100%inclusion2 decks2 decks
97%synergy
Nashi, Moon Sage's Scion
100%inclusion2 decks2 decks
96%synergy
Lord Skitter, Sewer King
100%inclusion2 decks2 decks
92%synergy
Ichor Rats
100%inclusion2 decks2 decks
97%synergy
Metallic Mimic
50%inclusion1 decks2 decks
49%synergy
Burglar Rat
50%inclusion1 decks2 decks
39%synergy
Ayara, First of Locthwain
50%inclusion1 decks2 decks
24%synergy
Lord Skitter's Butcher
50%inclusion1 decks2 decks
47%synergy
Diseased Vermin
50%inclusion1 decks2 decks
50%synergy
Bloodline Pretender
50%inclusion1 decks2 decks
49%synergy
Species Specialist
50%inclusion1 decks2 decks
47%synergy
Skullsnatcher
50%inclusion1 decks2 decks
49%synergy
Throat Slitter
50%inclusion1 decks2 decks
48%synergy
Ink-Eyes, Servant of Oni
50%inclusion1 decks2 decks
47%synergy
Locust Miser
50%inclusion1 decks2 decks
48%synergy
Persistent Marshstalker
50%inclusion1 decks2 decks
47%synergy
Swarm of Rats
50%inclusion1 decks2 decks
47%synergy
Chittering Skitterling
50%inclusion1 decks2 decks
49%synergy
Voracious Vermin
50%inclusion1 decks2 decks
47%synergy
Crypt Ghast
50%inclusion1 decks2 decks
2%synergy
Changeling Outcast
50%inclusion1 decks2 decks
45%synergy
Nezumi Informant
50%inclusion1 decks2 decks
43%synergy
Nezumi Prowler
50%inclusion1 decks2 decks
49%synergy
Pestilence Rats
50%inclusion1 decks2 decks
48%synergy
Wave of Rats
50%inclusion1 decks2 decks
48%synergy
Stronghold Rats
50%inclusion1 decks2 decks
46%synergy
Undercity Dire Rat
50%inclusion1 decks2 decks
48%synergy
Instants
Dark Ritual
100%inclusion2 decks2 decks
33%synergy
Sudden Spoiling
100%inclusion2 decks2 decks
91%synergy
Deadly Rollick
50%inclusion1 decks2 decks
26%synergy
Go for the Throat
50%inclusion1 decks2 decks
27%synergy
Snuff Out
50%inclusion1 decks2 decks
37%synergy
Vraska's Fall
50%inclusion1 decks2 decks
47%synergy
Village Rites
50%inclusion1 decks2 decks
25%synergy
Anoint with Affliction
50%inclusion1 decks2 decks
49%synergy
Cabal Ritual
50%inclusion1 decks2 decks
32%synergy
Culling the Weak
50%inclusion1 decks2 decks
34%synergy
Darkness
50%inclusion1 decks2 decks
40%synergy
Corrupted Conviction
50%inclusion1 decks2 decks
37%synergy
Ashnod's Intervention
50%inclusion1 decks2 decks
49%synergy
Liliana's Triumph
50%inclusion1 decks2 decks
44%synergy
Feign Death
50%inclusion1 decks2 decks
42%synergy
Dismember
50%inclusion1 decks2 decks
40%synergy
Sorceries
Infectious Inquiry
100%inclusion2 decks2 decks
97%synergy
Toxic Deluge
100%inclusion2 decks2 decks
63%synergy
Drown in Ichor
100%inclusion2 decks2 decks
96%synergy
Phyresis Outbreak
50%inclusion1 decks2 decks
48%synergy
Predators' Hour
50%inclusion1 decks2 decks
49%synergy
Feed the Swarm
50%inclusion1 decks2 decks
0%synergy
Exsanguinate
50%inclusion1 decks2 decks
25%synergy
Reanimate
50%inclusion1 decks2 decks
10%synergy
Call to the Netherworld
50%inclusion1 decks2 decks
49%synergy
Phyrexian Tribute
50%inclusion1 decks2 decks
50%synergy
Damnation
50%inclusion1 decks2 decks
29%synergy
Disentomb
50%inclusion1 decks2 decks
49%synergy
Rise of the Dark Realms
50%inclusion1 decks2 decks
37%synergy
Utility Artifacts
Skullclamp
100%inclusion2 decks2 decks
78%synergy
Ashnod's Altar
50%inclusion1 decks2 decks
30%synergy
Scroll Rack
50%inclusion1 decks2 decks
49%synergy
Expedition Map
50%inclusion1 decks2 decks
38%synergy
Sword of Hearth and Home
50%inclusion1 decks2 decks
49%synergy
Bontu's Monument
50%inclusion1 decks2 decks
22%synergy
Maskwood Nexus
50%inclusion1 decks2 decks
49%synergy
Jet Medallion
50%inclusion1 decks2 decks
-12%synergy
Herald's Horn
50%inclusion1 decks2 decks
44%synergy
Eldrazi Monument
50%inclusion1 decks2 decks
48%synergy
Swiftfoot Boots
50%inclusion1 decks2 decks
19%synergy
Lightning Greaves
50%inclusion1 decks2 decks
16%synergy
The Darkness Crystal
50%inclusion1 decks2 decks
30%synergy
Enchantments
Black Market Connections
100%inclusion2 decks2 decks
76%synergy
Cover of Darkness
100%inclusion2 decks2 decks
97%synergy
Phyrexian Arena
100%inclusion2 decks2 decks
60%synergy
The Meathook Massacre
50%inclusion1 decks2 decks
33%synergy
Grave Pact
50%inclusion1 decks2 decks
31%synergy
Intimidation
50%inclusion1 decks2 decks
49%synergy
No Mercy
50%inclusion1 decks2 decks
43%synergy
Oubliette
50%inclusion1 decks2 decks
47%synergy
Lord Skitter's Blessing
50%inclusion1 decks2 decks
49%synergy
Nowhere to Run
50%inclusion1 decks2 decks
47%synergy
Oversold Cemetery
50%inclusion1 decks2 decks
45%synergy
Dark Prophecy
50%inclusion1 decks2 decks
46%synergy
Necrogen Communion
50%inclusion1 decks2 decks
48%synergy
Planeswalkers
Vraska, Betrayal's Sting
50%inclusion1 decks2 decks
47%synergy
Liliana of the Dark Realms
50%inclusion1 decks2 decks
36%synergy
Utility Lands
Bojuka Bog
100%inclusion2 decks2 decks
53%synergy
Swarmyard
100%inclusion2 decks2 decks
94%synergy
Cabal Coffers
100%inclusion2 decks2 decks
45%synergy
Urborg, Tomb of Yawgmoth
100%inclusion2 decks2 decks
62%synergy
Cabal Stronghold
50%inclusion1 decks2 decks
15%synergy
Vault of Whispers
50%inclusion1 decks2 decks
45%synergy
Wasteland
50%inclusion1 decks2 decks
49%synergy
Mortuary Mire
50%inclusion1 decks2 decks
37%synergy
Blinkmoth Nexus
50%inclusion1 decks2 decks
49%synergy
Urza's Saga
50%inclusion1 decks2 decks
42%synergy
Mishra's Factory
50%inclusion1 decks2 decks
50%synergy
Inkmoth Nexus
50%inclusion1 decks2 decks
49%synergy
Spymaster's Vault
50%inclusion1 decks2 decks
40%synergy
Mutavault
50%inclusion1 decks2 decks
49%synergy
Witch's Cottage
50%inclusion1 decks2 decks
25%synergy
War Room
50%inclusion1 decks2 decks
34%synergy
Nykthos, Shrine to Nyx
50%inclusion1 decks2 decks
20%synergy
Karn's Bastion
50%inclusion1 decks2 decks
46%synergy
Mudflat Village
50%inclusion1 decks2 decks
47%synergy
Mishra's Foundry
50%inclusion1 decks2 decks
50%synergy
Castle Locthwain
50%inclusion1 decks2 decks
33%synergy
Reliquary Tower
50%inclusion1 decks2 decks
20%synergy
Hive of the Eye Tyrant
50%inclusion1 decks2 decks
49%synergy
Rogue's Passage
50%inclusion1 decks2 decks
31%synergy
Mana Artifacts
Sol Ring
100%inclusion2 decks2 decks
14%synergy
Firdoch Core
100%inclusion1 decks1 decks
100%synergy
Glistening Sphere
50%inclusion1 decks2 decks
49%synergy
The Soul Stone
50%inclusion1 decks2 decks
36%synergy
Lands
Swamp
100%inclusion2 decks2 decks
5%synergy
Cavern of Souls
100%inclusion2 decks2 decks
93%synergy
Prismatic Vista
50%inclusion1 decks2 decks
48%synergy
Fabled Passage
50%inclusion1 decks2 decks
48%synergy
Urza's Cave
50%inclusion1 decks2 decks
42%synergy
Ash Barrens
50%inclusion1 decks2 decks
49%synergy
Path of Ancestry
50%inclusion1 decks2 decks
45%synergy
Polluted Delta
50%inclusion1 decks2 decks
46%synergy
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