Karumonix, the Rat King (Commander) - Expensive Aggro

Karumonix, the Rat King
Rank #381
6decks
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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Enchantments
Planeswalkers
Utility Lands
Mana Artifacts
Lands
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Marrow-Gnawer
100%inclusion6 decks6 decks
97%synergy
Ashcoat of the Shadow Swarm
100%inclusion6 decks6 decks
97%synergy
Piper of the Swarm
100%inclusion6 decks6 decks
93%synergy
Ogre Slumlord
100%inclusion6 decks6 decks
90%synergy
Blightbelly Rat
83%inclusion5 decks6 decks
80%synergy
Rat Colony
83%inclusion5 decks6 decks
78%synergy
Swarmyard
83%inclusion5 decks6 decks
78%synergy
Pack Rat
83%inclusion5 decks6 decks
77%synergy
Lord Skitter, Sewer King
83%inclusion5 decks6 decks
75%synergy
Infectious Inquiry
67%inclusion4 decks6 decks
64%synergy
Top Cards
Dark Ritual
100%inclusion6 decks6 decks
33%synergy
Jet Medallion
83%inclusion5 decks6 decks
21%synergy
Deadly Rollick
67%inclusion4 decks6 decks
42%synergy
Go for the Throat
67%inclusion4 decks6 decks
44%synergy
Feed the Swarm
67%inclusion4 decks6 decks
16%synergy
Echoing Return
67%inclusion4 decks6 decks
64%synergy
Kindred Dominance
67%inclusion4 decks6 decks
62%synergy
Cover of Darkness
67%inclusion4 decks6 decks
64%synergy
Ichor Rats
67%inclusion4 decks6 decks
64%synergy
Game Changers
Demonic Tutor
67%inclusion4 decks6 decks
39%synergy
Vampiric Tutor
67%inclusion4 decks6 decks
46%synergy
Bolas's Citadel
50%inclusion3 decks6 decks
21%synergy
Ancient Tomb
33%inclusion2 decks6 decks
22%synergy
The One Ring
17%inclusion1 decks6 decks
7%synergy
Mana Vault
17%inclusion1 decks6 decks
10%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
Burglar Rat
50%inclusion3 decks6 decks
39%synergy
Lord Skitter's Butcher
50%inclusion3 decks6 decks
47%synergy
Locust Miser
50%inclusion3 decks6 decks
48%synergy
Ratcatcher
50%inclusion3 decks6 decks
47%synergy
Gnat Miser
50%inclusion3 decks6 decks
47%synergy
Typhoid Rats
50%inclusion3 decks6 decks
46%synergy
Undercity Dire Rat
50%inclusion1 decks2 decks
48%synergy
Crypt Rats
33%inclusion2 decks6 decks
29%synergy
Ink-Eyes, Servant of Oni
33%inclusion2 decks6 decks
30%synergy
Chittering Witch
33%inclusion2 decks6 decks
29%synergy
Changeling Outcast
33%inclusion2 decks6 decks
28%synergy
Wave of Rats
33%inclusion2 decks6 decks
31%synergy
Nashi, Moon Sage's Scion
33%inclusion2 decks6 decks
29%synergy
Okiba-Gang Shinobi
33%inclusion2 decks6 decks
32%synergy
Bog Rats
17%inclusion1 decks6 decks
16%synergy
Carrion Rats
17%inclusion1 decks6 decks
16%synergy
Midnight Scavengers
17%inclusion1 decks6 decks
16%synergy
Metallic Mimic
17%inclusion1 decks6 decks
16%synergy
Gnawing Vermin
17%inclusion1 decks6 decks
15%synergy
Roaming Throne
17%inclusion1 decks6 decks
14%synergy
Gray Merchant of Asphodel
17%inclusion1 decks6 decks
-34%synergy
Tangled Colony
17%inclusion1 decks6 decks
14%synergy
Diseased Vermin
17%inclusion1 decks6 decks
16%synergy
Species Specialist
17%inclusion1 decks6 decks
13%synergy
Skullsnatcher
17%inclusion1 decks6 decks
16%synergy
Adaptive Automaton
17%inclusion1 decks6 decks
16%synergy
Throat Slitter
17%inclusion1 decks6 decks
15%synergy
Earsplitting Rats
17%inclusion1 decks6 decks
16%synergy
Razortooth Rats
17%inclusion1 decks6 decks
16%synergy
Rats of Rath
17%inclusion1 decks6 decks
17%synergy
Mogis's Marauder
17%inclusion1 decks6 decks
16%synergy
Graf Rats
17%inclusion1 decks6 decks
16%synergy
Chittering Skitterling
17%inclusion1 decks6 decks
16%synergy
Voracious Vermin
17%inclusion1 decks6 decks
14%synergy
Valley Rotcaller
17%inclusion1 decks6 decks
14%synergy
Twisted Sewer-Witch
17%inclusion1 decks6 decks
15%synergy
Yawgmoth, Thran Physician
17%inclusion1 decks6 decks
7%synergy
Crypt Ghast
17%inclusion1 decks6 decks
-31%synergy
Nezumi Informant
17%inclusion1 decks6 decks
10%synergy
Nezumi Prowler
17%inclusion1 decks6 decks
15%synergy
Drainpipe Vermin
17%inclusion1 decks6 decks
15%synergy
Pestilence Rats
17%inclusion1 decks6 decks
15%synergy
Septic Rats
17%inclusion1 decks6 decks
15%synergy
Nezumi Bone-Reader
17%inclusion1 decks6 decks
16%synergy
Rancid Rats
17%inclusion1 decks6 decks
14%synergy
Ruin Rat
17%inclusion1 decks6 decks
15%synergy
Instants
Tragic Slip
50%inclusion3 decks6 decks
30%synergy
Imp's Mischief
33%inclusion2 decks6 decks
9%synergy
Village Rites
33%inclusion2 decks6 decks
8%synergy
Defile
33%inclusion2 decks6 decks
-3%synergy
Cabal Ritual
33%inclusion2 decks6 decks
15%synergy
Murder
33%inclusion2 decks6 decks
23%synergy
Infernal Grasp
33%inclusion2 decks6 decks
8%synergy
Foul-Tongue Shriek
33%inclusion2 decks6 decks
32%synergy
Curtains' Call
33%inclusion2 decks6 decks
32%synergy
Sudden Spoiling
33%inclusion2 decks6 decks
25%synergy
Withering Torment
20%inclusion1 decks5 decks
-11%synergy
Snuff Out
17%inclusion1 decks6 decks
4%synergy
Vraska's Fall
17%inclusion1 decks6 decks
13%synergy
Rat Out
17%inclusion1 decks6 decks
15%synergy
Grim Affliction
17%inclusion1 decks6 decks
15%synergy
Supernatural Stamina
17%inclusion1 decks6 decks
9%synergy
Bitter Triumph
17%inclusion1 decks6 decks
7%synergy
Darkness
17%inclusion1 decks6 decks
7%synergy
Demonic Consultation
17%inclusion1 decks6 decks
16%synergy
Malakir Rebirth
17%inclusion1 decks6 decks
-6%synergy
Baleful Mastery
17%inclusion1 decks6 decks
8%synergy
Ashnod's Intervention
17%inclusion1 decks6 decks
15%synergy
Cast Down
17%inclusion1 decks6 decks
15%synergy
Sorceries
Shredder's Technique
100%inclusion1 decks1 decks
96%synergy
Damnation
50%inclusion3 decks6 decks
30%synergy
Drown in Ichor
50%inclusion3 decks6 decks
46%synergy
Diabolic Intent
33%inclusion2 decks6 decks
18%synergy
Patriarch's Bidding
33%inclusion2 decks6 decks
29%synergy
Haunting Voyage
33%inclusion2 decks6 decks
32%synergy
Phyresis Outbreak
33%inclusion2 decks6 decks
32%synergy
Toxic Deluge
33%inclusion2 decks6 decks
-3%synergy
Rise of the Dark Realms
33%inclusion2 decks6 decks
20%synergy
Grim Tutor
33%inclusion2 decks6 decks
22%synergy
Revenge of the Rats
20%inclusion1 decks5 decks
17%synergy
Spread the Sickness
17%inclusion1 decks6 decks
16%synergy
Diabolic Tutor
17%inclusion1 decks6 decks
2%synergy
Torment of Hailfire
17%inclusion1 decks6 decks
1%synergy
Forever Young
17%inclusion1 decks6 decks
15%synergy
Final Act
17%inclusion1 decks6 decks
15%synergy
Bubbling Muck
17%inclusion1 decks6 decks
1%synergy
Feed the Infection
17%inclusion1 decks6 decks
16%synergy
Swarmyard Massacre
17%inclusion1 decks6 decks
14%synergy
Read the Bones
17%inclusion1 decks6 decks
0%synergy
Ancient Craving
17%inclusion1 decks6 decks
15%synergy
Night's Whisper
17%inclusion1 decks6 decks
-8%synergy
Phyrexian Tribute
17%inclusion1 decks6 decks
16%synergy
Raise Dead
17%inclusion1 decks6 decks
16%synergy
Gruesome Fate
17%inclusion1 decks6 decks
15%synergy
Crippling Fear
17%inclusion1 decks6 decks
14%synergy
Plague of Vermin
17%inclusion1 decks6 decks
14%synergy
Utility Artifacts
Chronicle of Victory
100%inclusion1 decks1 decks
97%synergy
Bontu's Monument
50%inclusion3 decks6 decks
22%synergy
Herald's Horn
50%inclusion3 decks6 decks
44%synergy
The Darkness Crystal
50%inclusion1 decks2 decks
30%synergy
Contagion Clasp
33%inclusion2 decks6 decks
31%synergy
Whip of Erebos
33%inclusion2 decks6 decks
22%synergy
Skullclamp
33%inclusion2 decks6 decks
11%synergy
Vanquisher's Banner
33%inclusion2 decks6 decks
29%synergy
Thornbite Staff
33%inclusion2 decks6 decks
31%synergy
Soul-Guide Lantern
17%inclusion1 decks6 decks
16%synergy
Mirror Box
17%inclusion1 decks6 decks
16%synergy
Ashnod's Altar
17%inclusion1 decks6 decks
-3%synergy
Coat of Arms
17%inclusion1 decks6 decks
14%synergy
Wishclaw Talisman
17%inclusion1 decks6 decks
10%synergy
Phyrexian Altar
17%inclusion1 decks6 decks
3%synergy
Akroma's Memorial
17%inclusion1 decks6 decks
16%synergy
Maskwood Nexus
17%inclusion1 decks6 decks
16%synergy
Door of Destinies
17%inclusion1 decks6 decks
14%synergy
Thrumming Stone
17%inclusion1 decks6 decks
13%synergy
Lightning Greaves
17%inclusion1 decks6 decks
-17%synergy
Enchantments
The Meathook Massacre
50%inclusion3 decks6 decks
33%synergy
Black Market
50%inclusion3 decks6 decks
29%synergy
Black Market Connections
50%inclusion3 decks6 decks
26%synergy
Grave Pact
33%inclusion2 decks6 decks
14%synergy
Exquisite Blood
33%inclusion2 decks6 decks
20%synergy
Phyrexian Arena
33%inclusion2 decks6 decks
-6%synergy
Haunted One
17%inclusion1 decks6 decks
14%synergy
Sanguine Bond
17%inclusion1 decks6 decks
5%synergy
Dictate of Erebos
17%inclusion1 decks6 decks
6%synergy
No Mercy
17%inclusion1 decks6 decks
9%synergy
Oubliette
17%inclusion1 decks6 decks
14%synergy
Planeswalkers
Vraska, Betrayal's Sting
33%inclusion2 decks6 decks
31%synergy
Utility Lands
Cabal Coffers
100%inclusion6 decks6 decks
45%synergy
Urborg, Tomb of Yawgmoth
83%inclusion5 decks6 decks
46%synergy
Nykthos, Shrine to Nyx
67%inclusion4 decks6 decks
37%synergy
Bojuka Bog
50%inclusion3 decks6 decks
3%synergy
Cabal Stronghold
50%inclusion3 decks6 decks
15%synergy
Phyrexian Tower
50%inclusion3 decks6 decks
25%synergy
Mudflat Village
50%inclusion3 decks6 decks
47%synergy
Reliquary Tower
50%inclusion3 decks6 decks
20%synergy
Crypt of Agadeem
33%inclusion2 decks6 decks
22%synergy
Mutavault
33%inclusion2 decks6 decks
33%synergy
Witch's Cottage
33%inclusion2 decks6 decks
9%synergy
Karn's Bastion
33%inclusion2 decks6 decks
29%synergy
Lake of the Dead
33%inclusion2 decks6 decks
28%synergy
Castle Locthwain
33%inclusion2 decks6 decks
16%synergy
Shizo, Death's Storehouse
17%inclusion1 decks6 decks
7%synergy
Vault of Whispers
17%inclusion1 decks6 decks
11%synergy
Wasteland
17%inclusion1 decks6 decks
15%synergy
Mortuary Mire
17%inclusion1 decks6 decks
4%synergy
Barren Moor
17%inclusion1 decks6 decks
7%synergy
Blinkmoth Nexus
17%inclusion1 decks6 decks
16%synergy
Urza's Saga
17%inclusion1 decks6 decks
9%synergy
Mishra's Factory
17%inclusion1 decks6 decks
16%synergy
Inkmoth Nexus
17%inclusion1 decks6 decks
16%synergy
Spymaster's Vault
17%inclusion1 decks6 decks
7%synergy
Command Beacon
17%inclusion1 decks6 decks
8%synergy
Minas Morgul, Dark Fortress
17%inclusion1 decks6 decks
14%synergy
Mishra's Foundry
17%inclusion1 decks6 decks
17%synergy
Dakmor Salvage
17%inclusion1 decks6 decks
15%synergy
Hive of the Eye Tyrant
17%inclusion1 decks6 decks
16%synergy
Everglades
17%inclusion1 decks6 decks
15%synergy
Rogue's Passage
17%inclusion1 decks6 decks
-2%synergy
Mana Artifacts
Sol Ring
100%inclusion6 decks6 decks
14%synergy
Arcane Signet
67%inclusion4 decks6 decks
5%synergy
Mana Geode
17%inclusion1 decks6 decks
17%synergy
Commander's Sphere
17%inclusion1 decks6 decks
8%synergy
Charcoal Diamond
17%inclusion1 decks6 decks
-6%synergy
Coldsteel Heart
17%inclusion1 decks6 decks
15%synergy
Heraldic Banner
17%inclusion1 decks6 decks
11%synergy
Patchwork Banner
17%inclusion1 decks6 decks
12%synergy
Thought Vessel
17%inclusion1 decks6 decks
-9%synergy
Mind Stone
17%inclusion1 decks6 decks
-12%synergy
Nyx Lotus
17%inclusion1 decks6 decks
10%synergy
Mox Opal
17%inclusion1 decks6 decks
13%synergy
Extraplanar Lens
17%inclusion1 decks6 decks
12%synergy
Lands
Swamp
83%inclusion5 decks6 decks
-12%synergy
Cavern of Souls
83%inclusion5 decks6 decks
77%synergy
Path of Ancestry
50%inclusion3 decks6 decks
45%synergy
Command Tower
33%inclusion2 decks6 decks
28%synergy
Snow-Covered Swamp
33%inclusion2 decks6 decks
27%synergy
Escape Tunnel
17%inclusion1 decks6 decks
16%synergy
Prismatic Vista
17%inclusion1 decks6 decks
14%synergy
Fabled Passage
17%inclusion1 decks6 decks
15%synergy
Myriad Landscape
17%inclusion1 decks6 decks
-9%synergy
Exotic Orchard
17%inclusion1 decks6 decks
15%synergy
Malakir Rebirth
17%inclusion1 decks6 decks
-6%synergy
Opal Palace
17%inclusion1 decks6 decks
16%synergy
Polluted Delta
17%inclusion1 decks6 decks
13%synergy
Bloodstained Mire
17%inclusion1 decks6 decks
13%synergy
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