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

Karumonix, the Rat King
Rank #401
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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Utility Lands
Mana Artifacts
Lands
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Vampiric Tutor
100%inclusion2 decks2 decks
79%synergy
Imperial Seal
50%inclusion1 decks2 decks
43%synergy
Ancient Tomb
50%inclusion1 decks2 decks
38%synergy
The One Ring
50%inclusion1 decks2 decks
41%synergy
Demonic Tutor
50%inclusion1 decks2 decks
23%synergy
Creatures
Ogre Slumlord
100%inclusion2 decks2 decks
90%synergy
Marrow-Gnawer
100%inclusion2 decks2 decks
97%synergy
Tangled Colony
100%inclusion2 decks2 decks
97%synergy
Species Specialist
100%inclusion2 decks2 decks
97%synergy
Pack Rat
100%inclusion2 decks2 decks
94%synergy
Locust Miser
100%inclusion2 decks2 decks
99%synergy
Valley Rotcaller
100%inclusion2 decks2 decks
97%synergy
Ashcoat of the Shadow Swarm
100%inclusion2 decks2 decks
96%synergy
Piper of the Swarm
100%inclusion2 decks2 decks
93%synergy
Ratcatcher
100%inclusion2 decks2 decks
97%synergy
Gnat Miser
100%inclusion2 decks2 decks
97%synergy
Lord Skitter, Sewer King
100%inclusion2 decks2 decks
92%synergy
Ichor Rats
100%inclusion2 decks2 decks
97%synergy
Rat King, Pale Piper
100%inclusion2 decks2 decks
96%synergy
Crypt Rats
50%inclusion1 decks2 decks
46%synergy
Relentless Rats
50%inclusion1 decks2 decks
48%synergy
Roaming Throne
50%inclusion1 decks2 decks
47%synergy
Diseased Vermin
50%inclusion1 decks2 decks
50%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
Zodiac Rat
50%inclusion1 decks2 decks
50%synergy
Swarm of Rats
50%inclusion1 decks2 decks
48%synergy
Twisted Sewer-Witch
50%inclusion1 decks2 decks
49%synergy
Changeling Outcast
50%inclusion1 decks2 decks
45%synergy
Nezumi Prowler
50%inclusion1 decks2 decks
49%synergy
Blightbelly Rat
50%inclusion1 decks2 decks
47%synergy
Wave of Rats
50%inclusion1 decks2 decks
48%synergy
Nashi, Moon Sage's Scion
50%inclusion1 decks2 decks
46%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, Verminister
50%inclusion1 decks2 decks
47%synergy
Splinter, Hamato Yoshi
50%inclusion1 decks2 decks
50%synergy
Instants
Dark Ritual
100%inclusion2 decks2 decks
33%synergy
Cabal Ritual
100%inclusion2 decks2 decks
81%synergy
Darkness
100%inclusion2 decks2 decks
90%synergy
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
Songs of the Damned
50%inclusion1 decks2 decks
44%synergy
Culling the Weak
50%inclusion1 decks2 decks
32%synergy
Ashnod's Intervention
50%inclusion1 decks2 decks
49%synergy
Sudden Spoiling
50%inclusion1 decks2 decks
42%synergy
Sorceries
Grim Tutor
100%inclusion2 decks2 decks
89%synergy
Diabolic Tutor
50%inclusion1 decks2 decks
36%synergy
Revenge of the Rats
50%inclusion1 decks2 decks
47%synergy
Bubbling Muck
50%inclusion1 decks2 decks
34%synergy
Phyresis Outbreak
50%inclusion1 decks2 decks
48%synergy
Swarmyard Massacre
50%inclusion1 decks2 decks
48%synergy
Feed the Swarm
50%inclusion1 decks2 decks
-0%synergy
Infectious Inquiry
50%inclusion1 decks2 decks
47%synergy
Exsanguinate
50%inclusion1 decks2 decks
25%synergy
Toxic Deluge
50%inclusion1 decks2 decks
13%synergy
Phyrexian Tribute
50%inclusion1 decks2 decks
50%synergy
Kindred Dominance
50%inclusion1 decks2 decks
45%synergy
Damnation
50%inclusion1 decks2 decks
30%synergy
Rise of the Dark Realms
50%inclusion1 decks2 decks
37%synergy
Bloodline Bidding
50%inclusion1 decks2 decks
46%synergy
Shredder's Technique
50%inclusion1 decks2 decks
47%synergy
Utility Artifacts
Chronicle of Victory
100%inclusion2 decks2 decks
97%synergy
Campfire
50%inclusion1 decks2 decks
49%synergy
Perpetual Timepiece
50%inclusion1 decks2 decks
48%synergy
Elixir of Immortality
50%inclusion1 decks2 decks
48%synergy
Icon of Ancestry
50%inclusion1 decks2 decks
49%synergy
Ashnod's Altar
50%inclusion1 decks2 decks
30%synergy
Whip of Erebos
50%inclusion1 decks2 decks
39%synergy
Coat of Arms
50%inclusion1 decks2 decks
47%synergy
Skullclamp
50%inclusion1 decks2 decks
28%synergy
Helm of the Host
50%inclusion1 decks2 decks
49%synergy
Thran Foundry
50%inclusion1 decks2 decks
50%synergy
Banner of Kinship
50%inclusion1 decks2 decks
48%synergy
Bontu's Monument
50%inclusion1 decks2 decks
22%synergy
Whispersilk Cloak
50%inclusion1 decks2 decks
44%synergy
Maskwood Nexus
50%inclusion1 decks2 decks
49%synergy
Door of Destinies
50%inclusion1 decks2 decks
48%synergy
Feldon's Cane
50%inclusion1 decks2 decks
49%synergy
Jet Medallion
50%inclusion1 decks2 decks
-12%synergy
Herald's Horn
50%inclusion1 decks2 decks
44%synergy
Lightning Greaves
50%inclusion1 decks2 decks
16%synergy
Thornbite Staff
50%inclusion1 decks2 decks
47%synergy
The Darkness Crystal
50%inclusion1 decks2 decks
30%synergy
Enchantments
Cover of Darkness
100%inclusion2 decks2 decks
97%synergy
The Meathook Massacre
50%inclusion1 decks2 decks
33%synergy
Black Market
50%inclusion1 decks2 decks
30%synergy
Haunted One
50%inclusion1 decks2 decks
48%synergy
Grave Pact
50%inclusion1 decks2 decks
31%synergy
Intimidation
50%inclusion1 decks2 decks
49%synergy
Infernal Tribute
50%inclusion1 decks2 decks
50%synergy
No Mercy
50%inclusion1 decks2 decks
43%synergy
Oubliette
50%inclusion1 decks2 decks
47%synergy
Bastion of Remembrance
50%inclusion1 decks2 decks
33%synergy
Black Market Connections
50%inclusion1 decks2 decks
25%synergy
Oversold Cemetery
50%inclusion1 decks2 decks
45%synergy
Phyrexian Arena
50%inclusion1 decks2 decks
11%synergy
Utility Lands
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
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
Vesuva
50%inclusion1 decks2 decks
47%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
26%synergy
Volrath's Stronghold
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
Rogue's Passage
50%inclusion1 decks2 decks
31%synergy
Secret Tunnel
50%inclusion1 decks2 decks
49%synergy
Mana Artifacts
Sol Ring
100%inclusion2 decks2 decks
15%synergy
Patchwork Banner
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
Path of Ancestry
50%inclusion1 decks2 decks
45%synergy
Snow-Covered Swamp
50%inclusion1 decks2 decks
43%synergy
Polluted Delta
50%inclusion1 decks2 decks
46%synergy
Bloodstained Mire
50%inclusion1 decks2 decks
46%synergy
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