Karumonix, the Rat King (Commander) - Upgraded Rat Colony

Karumonix, the Rat King
Rank #408
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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Lands
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Ogre Slumlord
100%inclusion2 decks2 decks
90%synergy
Marrow-Gnawer
100%inclusion2 decks2 decks
97%synergy
Piper of the Swarm
100%inclusion2 decks2 decks
93%synergy
Septic Rats
100%inclusion2 decks2 decks
98%synergy
Rat Colony
100%inclusion2 decks2 decks
94%synergy
Grim Haruspex
50%inclusion1 decks2 decks
41%synergy
Blightbelly Rat
50%inclusion1 decks2 decks
47%synergy
Rancid Rats
50%inclusion1 decks2 decks
48%synergy
Midnight Reaper
50%inclusion1 decks2 decks
42%synergy
Stronghold Rats
50%inclusion1 decks2 decks
47%synergy
Ichor Rats
50%inclusion1 decks2 decks
47%synergy
Agent Venom
50%inclusion1 decks2 decks
48%synergy
Rat King, Verminister
50%inclusion1 decks2 decks
47%synergy
Instants
Whisper of the Dross
50%inclusion1 decks2 decks
47%synergy
Snuff Out
50%inclusion1 decks2 decks
36%synergy
Vraska's Fall
50%inclusion1 decks2 decks
47%synergy
Village Rites
50%inclusion1 decks2 decks
24%synergy
Deadly Dispute
50%inclusion1 decks2 decks
23%synergy
Defile
50%inclusion1 decks2 decks
15%synergy
Dark Ritual
50%inclusion1 decks2 decks
-17%synergy
Culling the Weak
50%inclusion1 decks2 decks
32%synergy
Altar's Reap
50%inclusion1 decks2 decks
48%synergy
Extinguish the Light
50%inclusion1 decks2 decks
50%synergy
Malakir Rebirth
50%inclusion1 decks2 decks
26%synergy
Plumb the Forbidden
50%inclusion1 decks2 decks
46%synergy
Sudden Spoiling
50%inclusion1 decks2 decks
42%synergy
Tragic Slip
50%inclusion1 decks2 decks
31%synergy
Unbury
50%inclusion1 decks2 decks
49%synergy
Sorceries
Strategic Betrayal
50%inclusion1 decks2 decks
50%synergy
Victimize
50%inclusion1 decks2 decks
22%synergy
Patriarch's Bidding
50%inclusion1 decks2 decks
46%synergy
Profane Tutor
50%inclusion1 decks2 decks
46%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
Unearth
50%inclusion1 decks2 decks
41%synergy
Swarmyard Massacre
50%inclusion1 decks2 decks
48%synergy
Echoing Return
50%inclusion1 decks2 decks
47%synergy
Infectious Inquiry
50%inclusion1 decks2 decks
47%synergy
Night's Whisper
50%inclusion1 decks2 decks
25%synergy
Geth's Summons
50%inclusion1 decks2 decks
50%synergy
Sign in Blood
50%inclusion1 decks2 decks
15%synergy
Drown in Ichor
50%inclusion1 decks2 decks
46%synergy
Crippling Fear
50%inclusion1 decks2 decks
47%synergy
Utility Artifacts
Bontu's Monument
100%inclusion2 decks2 decks
72%synergy
Thrumming Stone
100%inclusion2 decks2 decks
96%synergy
Herald's Horn
100%inclusion2 decks2 decks
94%synergy
Icon of Ancestry
50%inclusion1 decks2 decks
49%synergy
Stoneforge Masterwork
50%inclusion1 decks2 decks
50%synergy
Jet Medallion
50%inclusion1 decks2 decks
-12%synergy
Swiftfoot Boots
50%inclusion1 decks2 decks
19%synergy
Enchantments
Phyrexian Arena
100%inclusion2 decks2 decks
61%synergy
Glistening Oil
50%inclusion1 decks2 decks
49%synergy
Haunted One
50%inclusion1 decks2 decks
48%synergy
Cover of Darkness
50%inclusion1 decks2 decks
47%synergy
Necrogen Communion
50%inclusion1 decks2 decks
48%synergy
Utility Lands
Swarmyard
100%inclusion2 decks2 decks
94%synergy
Witch's Cottage
100%inclusion2 decks2 decks
76%synergy
Rogue's Passage
100%inclusion2 decks2 decks
81%synergy
Bojuka Bog
50%inclusion1 decks2 decks
3%synergy
Cabal Coffers
50%inclusion1 decks2 decks
-5%synergy
Karn's Bastion
50%inclusion1 decks2 decks
46%synergy
Mana Artifacts
Sol Ring
100%inclusion2 decks2 decks
15%synergy
Arcane Signet
50%inclusion1 decks2 decks
-11%synergy
Charcoal Diamond
50%inclusion1 decks2 decks
28%synergy
Glistening Sphere
50%inclusion1 decks2 decks
49%synergy
Mind Stone
50%inclusion1 decks2 decks
22%synergy
Lands
Swamp
100%inclusion2 decks2 decks
5%synergy
Malakir Rebirth
50%inclusion1 decks2 decks
26%synergy
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