Karumonix, the Rat King (Commander) - Expensive Aggro

Karumonix, the Rat King
Rank #394
5decks
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
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Lands
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Marrow-Gnawer
100%inclusion5 decks5 decks
97%synergy
Ashcoat of the Shadow Swarm
100%inclusion5 decks5 decks
97%synergy
Piper of the Swarm
100%inclusion5 decks5 decks
93%synergy
Ogre Slumlord
100%inclusion5 decks5 decks
90%synergy
Infectious Inquiry
80%inclusion4 decks5 decks
77%synergy
Cover of Darkness
80%inclusion4 decks5 decks
77%synergy
Blightbelly Rat
80%inclusion4 decks5 decks
77%synergy
Rat Colony
80%inclusion4 decks5 decks
74%synergy
Swarmyard
80%inclusion4 decks5 decks
74%synergy
Pack Rat
80%inclusion4 decks5 decks
74%synergy
Top Cards
Dark Ritual
100%inclusion5 decks5 decks
33%synergy
Deadly Rollick
80%inclusion4 decks5 decks
55%synergy
Feed the Swarm
80%inclusion4 decks5 decks
30%synergy
Jet Medallion
80%inclusion4 decks5 decks
18%synergy
Lord Skitter, Sewer King
80%inclusion4 decks5 decks
72%synergy
Game Changers
Bolas's Citadel
60%inclusion3 decks5 decks
32%synergy
Demonic Tutor
60%inclusion3 decks5 decks
33%synergy
Vampiric Tutor
60%inclusion3 decks5 decks
39%synergy
Ancient Tomb
40%inclusion2 decks5 decks
28%synergy
The One Ring
20%inclusion1 decks5 decks
11%synergy
Mana Vault
20%inclusion1 decks5 decks
13%synergy
Creatures
Splinter, the Mentor
100%inclusion1 decks1 decks
99%synergy
Rat King, Pale Piper
100%inclusion1 decks1 decks
96%synergy
Splinter, Hamato Yoshi
100%inclusion1 decks1 decks
100%synergy
Locust Miser
60%inclusion3 decks5 decks
58%synergy
Ratcatcher
60%inclusion3 decks5 decks
57%synergy
Ichor Rats
60%inclusion3 decks5 decks
57%synergy
Undercity Dire Rat
50%inclusion1 decks2 decks
48%synergy
Crypt Rats
40%inclusion2 decks5 decks
35%synergy
Burglar Rat
40%inclusion2 decks5 decks
29%synergy
Lord Skitter's Butcher
40%inclusion2 decks5 decks
37%synergy
Ink-Eyes, Servant of Oni
40%inclusion2 decks5 decks
37%synergy
Chittering Witch
40%inclusion2 decks5 decks
36%synergy
Changeling Outcast
40%inclusion2 decks5 decks
35%synergy
Wave of Rats
40%inclusion2 decks5 decks
38%synergy
Gnat Miser
40%inclusion2 decks5 decks
37%synergy
Nashi, Moon Sage's Scion
40%inclusion2 decks5 decks
36%synergy
Typhoid Rats
40%inclusion2 decks5 decks
36%synergy
Okiba-Gang Shinobi
40%inclusion2 decks5 decks
39%synergy
Bog Rats
20%inclusion1 decks5 decks
20%synergy
Carrion Rats
20%inclusion1 decks5 decks
20%synergy
Metallic Mimic
20%inclusion1 decks5 decks
19%synergy
Roaming Throne
20%inclusion1 decks5 decks
17%synergy
Gray Merchant of Asphodel
20%inclusion1 decks5 decks
-31%synergy
Tangled Colony
20%inclusion1 decks5 decks
17%synergy
Diseased Vermin
20%inclusion1 decks5 decks
20%synergy
Species Specialist
20%inclusion1 decks5 decks
17%synergy
Skullsnatcher
20%inclusion1 decks5 decks
19%synergy
Adaptive Automaton
20%inclusion1 decks5 decks
19%synergy
Throat Slitter
20%inclusion1 decks5 decks
18%synergy
Earsplitting Rats
20%inclusion1 decks5 decks
20%synergy
Razortooth Rats
20%inclusion1 decks5 decks
19%synergy
Rats of Rath
20%inclusion1 decks5 decks
20%synergy
Mogis's Marauder
20%inclusion1 decks5 decks
19%synergy
Voracious Vermin
20%inclusion1 decks5 decks
17%synergy
Valley Rotcaller
20%inclusion1 decks5 decks
17%synergy
Twisted Sewer-Witch
20%inclusion1 decks5 decks
19%synergy
Yawgmoth, Thran Physician
20%inclusion1 decks5 decks
10%synergy
Crypt Ghast
20%inclusion1 decks5 decks
-27%synergy
Nezumi Informant
20%inclusion1 decks5 decks
14%synergy
Nezumi Prowler
20%inclusion1 decks5 decks
19%synergy
Pestilence Rats
20%inclusion1 decks5 decks
18%synergy
Septic Rats
20%inclusion1 decks5 decks
18%synergy
Nezumi Bone-Reader
20%inclusion1 decks5 decks
19%synergy
Rancid Rats
20%inclusion1 decks5 decks
18%synergy
Ruin Rat
20%inclusion1 decks5 decks
19%synergy
Instants
Go for the Throat
60%inclusion3 decks5 decks
37%synergy
Imp's Mischief
40%inclusion2 decks5 decks
15%synergy
Village Rites
40%inclusion2 decks5 decks
14%synergy
Cabal Ritual
40%inclusion2 decks5 decks
22%synergy
Curtains' Call
40%inclusion2 decks5 decks
38%synergy
Sudden Spoiling
40%inclusion2 decks5 decks
31%synergy
Tragic Slip
40%inclusion2 decks5 decks
21%synergy
Snuff Out
20%inclusion1 decks5 decks
7%synergy
Rat Out
20%inclusion1 decks5 decks
19%synergy
Grim Affliction
20%inclusion1 decks5 decks
18%synergy
Defile
20%inclusion1 decks5 decks
-16%synergy
Darkness
20%inclusion1 decks5 decks
10%synergy
Murder
20%inclusion1 decks5 decks
10%synergy
Infernal Grasp
20%inclusion1 decks5 decks
-5%synergy
Demonic Consultation
20%inclusion1 decks5 decks
19%synergy
Foul-Tongue Shriek
20%inclusion1 decks5 decks
18%synergy
Baleful Mastery
20%inclusion1 decks5 decks
12%synergy
Ashnod's Intervention
20%inclusion1 decks5 decks
19%synergy
Withering Torment
20%inclusion1 decks5 decks
-11%synergy
Sorceries
Shredder's Technique
100%inclusion1 decks1 decks
97%synergy
Echoing Return
60%inclusion3 decks5 decks
57%synergy
Kindred Dominance
60%inclusion3 decks5 decks
55%synergy
Damnation
60%inclusion3 decks5 decks
40%synergy
Diabolic Intent
40%inclusion2 decks5 decks
25%synergy
Patriarch's Bidding
40%inclusion2 decks5 decks
36%synergy
Toxic Deluge
40%inclusion2 decks5 decks
3%synergy
Drown in Ichor
40%inclusion2 decks5 decks
36%synergy
Grim Tutor
40%inclusion2 decks5 decks
28%synergy
Spread the Sickness
20%inclusion1 decks5 decks
19%synergy
Diabolic Tutor
20%inclusion1 decks5 decks
6%synergy
Revenge of the Rats
20%inclusion1 decks5 decks
17%synergy
Torment of Hailfire
20%inclusion1 decks5 decks
5%synergy
Haunting Voyage
20%inclusion1 decks5 decks
19%synergy
Bubbling Muck
20%inclusion1 decks5 decks
4%synergy
Feed the Infection
20%inclusion1 decks5 decks
19%synergy
Phyresis Outbreak
20%inclusion1 decks5 decks
18%synergy
Swarmyard Massacre
20%inclusion1 decks5 decks
18%synergy
Read the Bones
20%inclusion1 decks5 decks
4%synergy
Night's Whisper
20%inclusion1 decks5 decks
-5%synergy
Phyrexian Tribute
20%inclusion1 decks5 decks
20%synergy
Gruesome Fate
20%inclusion1 decks5 decks
18%synergy
Rise of the Dark Realms
20%inclusion1 decks5 decks
7%synergy
Plague of Vermin
20%inclusion1 decks5 decks
18%synergy
Utility Artifacts
Chronicle of Victory
100%inclusion1 decks1 decks
97%synergy
The Darkness Crystal
50%inclusion1 decks2 decks
30%synergy
Contagion Clasp
40%inclusion2 decks5 decks
38%synergy
Whip of Erebos
40%inclusion2 decks5 decks
29%synergy
Skullclamp
40%inclusion2 decks5 decks
18%synergy
Bontu's Monument
40%inclusion2 decks5 decks
12%synergy
Herald's Horn
40%inclusion2 decks5 decks
34%synergy
Thornbite Staff
40%inclusion2 decks5 decks
37%synergy
Soul-Guide Lantern
20%inclusion1 decks5 decks
19%synergy
Mirror Box
20%inclusion1 decks5 decks
19%synergy
Ashnod's Altar
20%inclusion1 decks5 decks
0%synergy
Coat of Arms
20%inclusion1 decks5 decks
17%synergy
Wishclaw Talisman
20%inclusion1 decks5 decks
13%synergy
Vanquisher's Banner
20%inclusion1 decks5 decks
16%synergy
Phyrexian Altar
20%inclusion1 decks5 decks
6%synergy
Akroma's Memorial
20%inclusion1 decks5 decks
19%synergy
Maskwood Nexus
20%inclusion1 decks5 decks
19%synergy
Thrumming Stone
20%inclusion1 decks5 decks
16%synergy
Lightning Greaves
20%inclusion1 decks5 decks
-14%synergy
Enchantments
The Meathook Massacre
60%inclusion3 decks5 decks
43%synergy
Black Market
60%inclusion3 decks5 decks
39%synergy
Black Market Connections
60%inclusion3 decks5 decks
36%synergy
Grave Pact
40%inclusion2 decks5 decks
20%synergy
Exquisite Blood
40%inclusion2 decks5 decks
27%synergy
Phyrexian Arena
40%inclusion2 decks5 decks
1%synergy
Haunted One
20%inclusion1 decks5 decks
17%synergy
Sanguine Bond
20%inclusion1 decks5 decks
8%synergy
Dictate of Erebos
20%inclusion1 decks5 decks
9%synergy
No Mercy
20%inclusion1 decks5 decks
13%synergy
Oubliette
20%inclusion1 decks5 decks
17%synergy
Planeswalkers
Vraska, Betrayal's Sting
20%inclusion1 decks5 decks
17%synergy
Utility Lands
Cabal Coffers
100%inclusion5 decks5 decks
45%synergy
Urborg, Tomb of Yawgmoth
80%inclusion4 decks5 decks
42%synergy
Nykthos, Shrine to Nyx
60%inclusion3 decks5 decks
30%synergy
Bojuka Bog
40%inclusion2 decks5 decks
-7%synergy
Cabal Stronghold
40%inclusion2 decks5 decks
6%synergy
Phyrexian Tower
40%inclusion2 decks5 decks
14%synergy
Mutavault
40%inclusion2 decks5 decks
39%synergy
Mudflat Village
40%inclusion2 decks5 decks
37%synergy
Lake of the Dead
40%inclusion2 decks5 decks
35%synergy
Reliquary Tower
40%inclusion2 decks5 decks
10%synergy
Vault of Whispers
20%inclusion1 decks5 decks
15%synergy
Wasteland
20%inclusion1 decks5 decks
19%synergy
Blinkmoth Nexus
20%inclusion1 decks5 decks
19%synergy
Urza's Saga
20%inclusion1 decks5 decks
12%synergy
Crypt of Agadeem
20%inclusion1 decks5 decks
9%synergy
Mishra's Factory
20%inclusion1 decks5 decks
20%synergy
Inkmoth Nexus
20%inclusion1 decks5 decks
19%synergy
Spymaster's Vault
20%inclusion1 decks5 decks
10%synergy
Witch's Cottage
20%inclusion1 decks5 decks
-5%synergy
Karn's Bastion
20%inclusion1 decks5 decks
16%synergy
Mishra's Foundry
20%inclusion1 decks5 decks
20%synergy
Castle Locthwain
20%inclusion1 decks5 decks
3%synergy
Hive of the Eye Tyrant
20%inclusion1 decks5 decks
19%synergy
Mana Artifacts
Sol Ring
100%inclusion5 decks5 decks
14%synergy
Arcane Signet
60%inclusion3 decks5 decks
-2%synergy
Commander's Sphere
20%inclusion1 decks5 decks
12%synergy
Heraldic Banner
20%inclusion1 decks5 decks
15%synergy
Patchwork Banner
20%inclusion1 decks5 decks
16%synergy
Thought Vessel
20%inclusion1 decks5 decks
-5%synergy
Mind Stone
20%inclusion1 decks5 decks
-8%synergy
Nyx Lotus
20%inclusion1 decks5 decks
14%synergy
Mox Opal
20%inclusion1 decks5 decks
17%synergy
Extraplanar Lens
20%inclusion1 decks5 decks
15%synergy
Lands
Swamp
80%inclusion4 decks5 decks
-15%synergy
Cavern of Souls
80%inclusion4 decks5 decks
73%synergy
Path of Ancestry
40%inclusion2 decks5 decks
35%synergy
Snow-Covered Swamp
40%inclusion2 decks5 decks
33%synergy
Prismatic Vista
20%inclusion1 decks5 decks
18%synergy
Command Tower
20%inclusion1 decks5 decks
14%synergy
Fabled Passage
20%inclusion1 decks5 decks
18%synergy
Opal Palace
20%inclusion1 decks5 decks
19%synergy
Polluted Delta
20%inclusion1 decks5 decks
16%synergy
Bloodstained Mire
20%inclusion1 decks5 decks
16%synergy
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