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

Karumonix, the Rat King
Rank #407
2decks
As CommanderAs CardAverage DeckDecks
Bracket
All
1
23
4
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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Archidekt
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Creatures
Instants
Sorceries
Utility Artifacts
Enchantments
Utility Lands
Mana Artifacts
Lands
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Grim Monolith
50%inclusion1 decks2 decks
47%synergy
Ancient Tomb
50%inclusion1 decks2 decks
38%synergy
The One Ring
50%inclusion1 decks2 decks
41%synergy
Mana Vault
50%inclusion1 decks2 decks
43%synergy
Vampiric Tutor
50%inclusion1 decks2 decks
29%synergy
Creatures
Marrow-Gnawer
100%inclusion2 decks2 decks
97%synergy
Pack Rat
100%inclusion2 decks2 decks
94%synergy
Ashcoat of the Shadow Swarm
100%inclusion2 decks2 decks
96%synergy
Piper of the Swarm
100%inclusion2 decks2 decks
93%synergy
Blightbelly Rat
100%inclusion2 decks2 decks
97%synergy
Lord Skitter, Sewer King
100%inclusion2 decks2 decks
92%synergy
Ichor Rats
100%inclusion2 decks2 decks
97%synergy
Ogre Slumlord
50%inclusion1 decks2 decks
40%synergy
Crypt Rats
50%inclusion1 decks2 decks
46%synergy
Ayara, First of Locthwain
50%inclusion1 decks2 decks
25%synergy
Gray Merchant of Asphodel
50%inclusion1 decks2 decks
-0%synergy
Tangled Colony
50%inclusion1 decks2 decks
47%synergy
Filth
50%inclusion1 decks2 decks
48%synergy
Diseased Vermin
50%inclusion1 decks2 decks
50%synergy
Species Specialist
50%inclusion1 decks2 decks
47%synergy
Skullsnatcher
50%inclusion1 decks2 decks
49%synergy
Adaptive Automaton
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
49%synergy
Valley Rotcaller
50%inclusion1 decks2 decks
47%synergy
Twisted Sewer-Witch
50%inclusion1 decks2 decks
49%synergy
Yawgmoth, Thran Physician
50%inclusion1 decks2 decks
40%synergy
Changeling Outcast
50%inclusion1 decks2 decks
45%synergy
Nezumi Prowler
50%inclusion1 decks2 decks
49%synergy
Ratcatcher
50%inclusion1 decks2 decks
47%synergy
Wave of Rats
50%inclusion1 decks2 decks
48%synergy
Gnat Miser
50%inclusion1 decks2 decks
47%synergy
Nashi, Moon Sage's Scion
50%inclusion1 decks2 decks
46%synergy
Rat Colony
50%inclusion1 decks2 decks
44%synergy
Okiba-Gang Shinobi
50%inclusion1 decks2 decks
49%synergy
Undercity Dire Rat
50%inclusion1 decks2 decks
48%synergy
Splinter, the Mentor
50%inclusion1 decks2 decks
49%synergy
Rat King, Pale Piper
50%inclusion1 decks2 decks
46%synergy
Splinter, Hamato Yoshi
50%inclusion1 decks2 decks
50%synergy
Instants
Deadly Rollick
50%inclusion1 decks2 decks
25%synergy
Imp's Mischief
50%inclusion1 decks2 decks
25%synergy
Snuff Out
50%inclusion1 decks2 decks
36%synergy
Dark Ritual
50%inclusion1 decks2 decks
-17%synergy
Cabal Ritual
50%inclusion1 decks2 decks
31%synergy
Darkness
50%inclusion1 decks2 decks
40%synergy
Ashnod's Intervention
50%inclusion1 decks2 decks
49%synergy
Sudden Spoiling
50%inclusion1 decks2 decks
42%synergy
Sorceries
Phyresis Outbreak
100%inclusion2 decks2 decks
98%synergy
Vat Emergence
50%inclusion1 decks2 decks
49%synergy
Spread the Sickness
50%inclusion1 decks2 decks
49%synergy
Patriarch's Bidding
50%inclusion1 decks2 decks
46%synergy
Torment of Hailfire
50%inclusion1 decks2 decks
35%synergy
Forever Young
50%inclusion1 decks2 decks
49%synergy
Feed the Swarm
50%inclusion1 decks2 decks
-0%synergy
Infectious Inquiry
50%inclusion1 decks2 decks
47%synergy
Mutilate
50%inclusion1 decks2 decks
34%synergy
Living Death
50%inclusion1 decks2 decks
40%synergy
Toxic Deluge
50%inclusion1 decks2 decks
13%synergy
Phyrexian Tribute
50%inclusion1 decks2 decks
50%synergy
Damnation
50%inclusion1 decks2 decks
30%synergy
Rise of the Dark Realms
50%inclusion1 decks2 decks
37%synergy
Grim Tutor
50%inclusion1 decks2 decks
39%synergy
Plague of Vermin
50%inclusion1 decks2 decks
48%synergy
Pact of the Serpent
50%inclusion1 decks2 decks
48%synergy
Secret Salvage
50%inclusion1 decks2 decks
49%synergy
Shredder's Technique
50%inclusion1 decks2 decks
47%synergy
Utility Artifacts
Whip of Erebos
100%inclusion2 decks2 decks
89%synergy
Skullclamp
100%inclusion2 decks2 decks
78%synergy
Contagion Clasp
50%inclusion1 decks2 decks
48%synergy
Ashnod's Altar
50%inclusion1 decks2 decks
30%synergy
Pyre of Heroes
50%inclusion1 decks2 decks
50%synergy
Maskwood Nexus
50%inclusion1 decks2 decks
49%synergy
Thrumming Stone
50%inclusion1 decks2 decks
46%synergy
Jet Medallion
50%inclusion1 decks2 decks
-12%synergy
Herald's Horn
50%inclusion1 decks2 decks
44%synergy
Thornbite Staff
50%inclusion1 decks2 decks
47%synergy
Grafted Exoskeleton
50%inclusion1 decks2 decks
49%synergy
The Darkness Crystal
50%inclusion1 decks2 decks
30%synergy
Chronicle of Victory
50%inclusion1 decks2 decks
47%synergy
Enchantments
Cover of Darkness
100%inclusion2 decks2 decks
97%synergy
The Meathook Massacre
50%inclusion1 decks2 decks
33%synergy
Haunted One
50%inclusion1 decks2 decks
48%synergy
No Mercy
50%inclusion1 decks2 decks
43%synergy
Oubliette
50%inclusion1 decks2 decks
47%synergy
Black Market Connections
50%inclusion1 decks2 decks
25%synergy
Phyrexian Arena
50%inclusion1 decks2 decks
11%synergy
Utility Lands
Urborg, Tomb of Yawgmoth
100%inclusion2 decks2 decks
62%synergy
Bojuka Bog
50%inclusion1 decks2 decks
3%synergy
Vault of Whispers
50%inclusion1 decks2 decks
44%synergy
Wasteland
50%inclusion1 decks2 decks
49%synergy
Phyrexian Tower
50%inclusion1 decks2 decks
24%synergy
Blinkmoth Nexus
50%inclusion1 decks2 decks
49%synergy
Swarmyard
50%inclusion1 decks2 decks
44%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
26%synergy
Cabal Coffers
50%inclusion1 decks2 decks
-5%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
Hive of the Eye Tyrant
50%inclusion1 decks2 decks
49%synergy
Mana Artifacts
Sol Ring
100%inclusion2 decks2 decks
15%synergy
Arcane Signet
50%inclusion1 decks2 decks
-11%synergy
Glistening Sphere
50%inclusion1 decks2 decks
49%synergy
Hedron Archive
50%inclusion1 decks2 decks
47%synergy
Patchwork Banner
50%inclusion1 decks2 decks
46%synergy
Thought Vessel
50%inclusion1 decks2 decks
25%synergy
Thran Dynamo
50%inclusion1 decks2 decks
44%synergy
Worn Powerstone
50%inclusion1 decks2 decks
46%synergy
Lands
Swamp
100%inclusion2 decks2 decks
5%synergy
Prismatic Vista
50%inclusion1 decks2 decks
48%synergy
Fabled Passage
50%inclusion1 decks2 decks
48%synergy
Cavern of Souls
50%inclusion1 decks2 decks
43%synergy
Snow-Covered Swamp
50%inclusion1 decks2 decks
44%synergy
Polluted Delta
50%inclusion1 decks2 decks
46%synergy
Bloodstained Mire
50%inclusion1 decks2 decks
46%synergy
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