Karumonix, the Rat King (Commander) - Core Combo

Karumonix, the Rat King
Rank #412
2decks
As CommanderAs CardAverage DeckDecks
Bracket
All
1
234
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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Cardsphere
Archidekt
Commander Spellbook
Moxfield
Scryfall
MTGStocks
Creatures
Instants
Sorceries
Utility Artifacts
Enchantments
Utility Lands
Mana Artifacts
Lands
Back to Top
Rat Colony
100%inclusion2 decks2 decks
95%synergy
Lord Skitter, Sewer King
100%inclusion2 decks2 decks
92%synergy
Ogre Slumlord
50%inclusion1 decks2 decks
41%synergy
Ghoulcaller Gisa
50%inclusion1 decks2 decks
45%synergy
Crypt Rats
50%inclusion1 decks2 decks
46%synergy
Relentless Rats
50%inclusion1 decks2 decks
48%synergy
Marrow-Gnawer
50%inclusion1 decks2 decks
47%synergy
Blood Artist
50%inclusion1 decks2 decks
18%synergy
Morbid Opportunist
50%inclusion1 decks2 decks
26%synergy
Ayara, First of Locthwain
50%inclusion1 decks2 decks
25%synergy
Nadier's Nightblade
50%inclusion1 decks2 decks
48%synergy
Nadier, Agent of the Duskenel
50%inclusion1 decks2 decks
50%synergy
Lord Skitter's Butcher
50%inclusion1 decks2 decks
47%synergy
Endrek Sahr, Master Breeder
50%inclusion1 decks2 decks
43%synergy
Species Specialist
50%inclusion1 decks2 decks
47%synergy
Pack Rat
50%inclusion1 decks2 decks
44%synergy
Grim Haruspex
50%inclusion1 decks2 decks
41%synergy
Zulaport Cutthroat
50%inclusion1 decks2 decks
27%synergy
Ashcoat of the Shadow Swarm
50%inclusion1 decks2 decks
46%synergy
Reassembling Skeleton
50%inclusion1 decks2 decks
32%synergy
Crypt Ghast
50%inclusion1 decks2 decks
3%synergy
Piper of the Swarm
50%inclusion1 decks2 decks
43%synergy
Pitiless Plunderer
50%inclusion1 decks2 decks
30%synergy
Rankle, Master of Pranks
50%inclusion1 decks2 decks
38%synergy
Typhoid Rats
50%inclusion1 decks2 decks
47%synergy
Ancestral Statue
50%inclusion1 decks2 decks
50%synergy
Ascendant Evincar
50%inclusion1 decks2 decks
48%synergy
Cult Conscript
50%inclusion1 decks2 decks
48%synergy
Midnight Reaper
50%inclusion1 decks2 decks
41%synergy
Venomous Changeling
50%inclusion1 decks2 decks
50%synergy
Instants
Dismember
100%inclusion2 decks2 decks
90%synergy
Astarion's Thirst
50%inclusion1 decks2 decks
49%synergy
Deadly Rollick
50%inclusion1 decks2 decks
24%synergy
Cut Down
50%inclusion1 decks2 decks
47%synergy
Snuff Out
50%inclusion1 decks2 decks
36%synergy
Defile
50%inclusion1 decks2 decks
15%synergy
Dark Ritual
50%inclusion1 decks2 decks
-17%synergy
Cabal Ritual
50%inclusion1 decks2 decks
31%synergy
Culling the Weak
50%inclusion1 decks2 decks
32%synergy
Plumb the Forbidden
50%inclusion1 decks2 decks
46%synergy
Cast Down
50%inclusion1 decks2 decks
49%synergy
Szat's Will
50%inclusion1 decks2 decks
48%synergy
Tragic Slip
50%inclusion1 decks2 decks
31%synergy
Sorceries
Diabolic Tutor
50%inclusion1 decks2 decks
37%synergy
Spark Harvest
50%inclusion1 decks2 decks
49%synergy
Patriarch's Bidding
50%inclusion1 decks2 decks
46%synergy
Torment of Hailfire
50%inclusion1 decks2 decks
35%synergy
Haunting Voyage
50%inclusion1 decks2 decks
49%synergy
Dread Return
50%inclusion1 decks2 decks
38%synergy
Feed the Swarm
50%inclusion1 decks2 decks
-0%synergy
Echoing Return
50%inclusion1 decks2 decks
47%synergy
Blasphemous Edict
50%inclusion1 decks2 decks
34%synergy
Bone Shards
50%inclusion1 decks2 decks
47%synergy
Decree of Pain
50%inclusion1 decks2 decks
45%synergy
Toxic Deluge
50%inclusion1 decks2 decks
13%synergy
Sign in Blood
50%inclusion1 decks2 decks
15%synergy
Kindred Dominance
50%inclusion1 decks2 decks
45%synergy
Damnation
50%inclusion1 decks2 decks
30%synergy
Pact of the Serpent
50%inclusion1 decks2 decks
48%synergy
Utility Artifacts
Ashnod's Altar
100%inclusion2 decks2 decks
80%synergy
Bontu's Monument
100%inclusion2 decks2 decks
72%synergy
Jet Medallion
100%inclusion2 decks2 decks
38%synergy
The Immortal Sun
50%inclusion1 decks2 decks
49%synergy
Skullclamp
50%inclusion1 decks2 decks
28%synergy
Stoneforge Masterwork
50%inclusion1 decks2 decks
50%synergy
Expedition Map
50%inclusion1 decks2 decks
39%synergy
Whispersilk Cloak
50%inclusion1 decks2 decks
44%synergy
Thrumming Stone
50%inclusion1 decks2 decks
46%synergy
Locket of Yesterdays
50%inclusion1 decks2 decks
50%synergy
Executioner's Capsule
50%inclusion1 decks2 decks
50%synergy
Witch's Cauldron
50%inclusion1 decks2 decks
49%synergy
Altar of Dementia
50%inclusion1 decks2 decks
44%synergy
Enchantments
Oubliette
100%inclusion2 decks2 decks
97%synergy
Greed
50%inclusion1 decks2 decks
44%synergy
Black Market
50%inclusion1 decks2 decks
30%synergy
Underworld Connections
50%inclusion1 decks2 decks
48%synergy
Phyrexian Reclamation
50%inclusion1 decks2 decks
40%synergy
Dictate of Erebos
50%inclusion1 decks2 decks
39%synergy
Bastion of Remembrance
50%inclusion1 decks2 decks
33%synergy
Utility Lands
Reliquary Tower
100%inclusion2 decks2 decks
71%synergy
Cabal Stronghold
50%inclusion1 decks2 decks
16%synergy
Underdark Rift
50%inclusion1 decks2 decks
50%synergy
Vesuva
50%inclusion1 decks2 decks
47%synergy
Swarmyard
50%inclusion1 decks2 decks
44%synergy
Cabal Coffers
50%inclusion1 decks2 decks
-5%synergy
Nykthos, Shrine to Nyx
50%inclusion1 decks2 decks
20%synergy
Deserted Temple
50%inclusion1 decks2 decks
46%synergy
Temple of the False God
50%inclusion1 decks2 decks
43%synergy
Three Tree City
50%inclusion1 decks2 decks
45%synergy
Urborg, Tomb of Yawgmoth
50%inclusion1 decks2 decks
12%synergy
Rogue's Passage
50%inclusion1 decks2 decks
30%synergy
Mana Artifacts
Sol Ring
100%inclusion2 decks2 decks
15%synergy
Commander's Sphere
50%inclusion1 decks2 decks
42%synergy
Arcane Signet
50%inclusion1 decks2 decks
-11%synergy
Gauntlet of Power
50%inclusion1 decks2 decks
47%synergy
Fellwar Stone
50%inclusion1 decks2 decks
36%synergy
Gilded Lotus
50%inclusion1 decks2 decks
45%synergy
Extraplanar Lens
50%inclusion1 decks2 decks
45%synergy
Lands
Swamp
100%inclusion2 decks2 decks
5%synergy
Cavern of Souls
50%inclusion1 decks2 decks
43%synergy
Path of Ancestry
50%inclusion1 decks2 decks
45%synergy
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