Karumonix, the Rat King (Commander) - +1/+1 Counters

Karumonix, the Rat King
Rank #412
22decks
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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Enchantments
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Utility Lands
Mana Artifacts
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Marrow-Gnawer
91%inclusion20 decks22 decks
87%synergy
Piper of the Swarm
86%inclusion19 decks22 decks
80%synergy
Vraska's Fall
82%inclusion18 decks22 decks
79%synergy
Ichor Rats
77%inclusion17 decks22 decks
75%synergy
Infectious Inquiry
73%inclusion16 decks22 decks
70%synergy
Drown in Ichor
73%inclusion16 decks22 decks
69%synergy
Rat Colony
73%inclusion16 decks22 decks
67%synergy
Blightbelly Rat
68%inclusion15 decks22 decks
65%synergy
Ogre Slumlord
73%inclusion16 decks22 decks
63%synergy
Pack Rat
68%inclusion15 decks22 decks
62%synergy
Top Cards
Bontu's Monument
68%inclusion15 decks22 decks
40%synergy
Dark Ritual
68%inclusion15 decks22 decks
1%synergy
Herald's Horn
64%inclusion14 decks22 decks
58%synergy
Lord Skitter, Sewer King
64%inclusion14 decks22 decks
56%synergy
Jet Medallion
59%inclusion13 decks22 decks
-3%synergy
Cover of Darkness
59%inclusion13 decks22 decks
56%synergy
Crypt Rats
59%inclusion13 decks22 decks
55%synergy
Rancid Rats
55%inclusion12 decks22 decks
52%synergy
Phyresis Outbreak
55%inclusion12 decks22 decks
53%synergy
Revenge of the Rats
52%inclusion11 decks21 decks
49%synergy
Game Changers
Demonic Tutor
27%inclusion6 decks22 decks
0%synergy
Bolas's Citadel
14%inclusion3 decks22 decks
-14%synergy
Vampiric Tutor
14%inclusion3 decks22 decks
-7%synergy
Creatures
Ratcatcher
50%inclusion11 decks22 decks
47%synergy
Persistent Marshstalker
45%inclusion10 decks22 decks
43%synergy
Tangled Colony
41%inclusion9 decks22 decks
38%synergy
Lord Skitter's Butcher
41%inclusion9 decks22 decks
38%synergy
Swarm of Rats
41%inclusion9 decks22 decks
39%synergy
Voracious Vermin
41%inclusion9 decks22 decks
38%synergy
Septic Rats
41%inclusion9 decks22 decks
39%synergy
Typhoid Rats
41%inclusion9 decks22 decks
37%synergy
Rat King, Verminister
38%inclusion3 decks8 decks
34%synergy
Relentless Rats
36%inclusion8 decks22 decks
35%synergy
Ashcoat of the Shadow Swarm
36%inclusion8 decks22 decks
33%synergy
Burglar Rat
32%inclusion7 decks22 decks
21%synergy
Species Specialist
32%inclusion7 decks22 decks
28%synergy
Valley Rotcaller
32%inclusion7 decks22 decks
29%synergy
Stronghold Rats
32%inclusion7 decks22 decks
28%synergy
Ayara, First of Locthwain
27%inclusion6 decks22 decks
2%synergy
Chittering Witch
27%inclusion6 decks22 decks
23%synergy
Pestilence Rats
27%inclusion6 decks22 decks
25%synergy
Chittering Skitterling
23%inclusion5 decks22 decks
22%synergy
Wave of Rats
23%inclusion5 decks22 decks
21%synergy
Gnat Miser
23%inclusion5 decks22 decks
20%synergy
Ink-Eyes, Servant of Oni
18%inclusion4 decks22 decks
15%synergy
Twisted Sewer-Witch
18%inclusion4 decks22 decks
17%synergy
Old Flitterfang
18%inclusion4 decks22 decks
17%synergy
Mirkwood Bats
14%inclusion3 decks22 decks
5%synergy
Nezumi Bladeblesser
14%inclusion3 decks22 decks
13%synergy
Locust Miser
14%inclusion3 decks22 decks
12%synergy
Yawgmoth, Thran Physician
14%inclusion3 decks22 decks
4%synergy
Nezumi Informant
14%inclusion3 decks22 decks
8%synergy
Ruin Rat
14%inclusion3 decks22 decks
12%synergy
Rat King, Pale Piper
13%inclusion1 decks8 decks
9%synergy
Engine Rat
11%inclusion2 decks19 decks
9%synergy
Scrawling Crawler
10%inclusion2 decks21 decks
6%synergy
Refurbished Familiar
9.1%inclusion2 decks22 decks
7%synergy
Chittering Rats
9.1%inclusion2 decks22 decks
9%synergy
Midnight Scavengers
9.1%inclusion2 decks22 decks
9%synergy
Ravenous Rats
9.1%inclusion2 decks22 decks
7%synergy
Daggerfang Duo
9.1%inclusion2 decks22 decks
8%synergy
Infected Vermin
9.1%inclusion2 decks22 decks
9%synergy
Skullsnatcher
9.1%inclusion2 decks22 decks
8%synergy
Adaptive Automaton
9.1%inclusion2 decks22 decks
8%synergy
Throat Slitter
9.1%inclusion2 decks22 decks
7%synergy
Graf Rats
9.1%inclusion2 decks22 decks
9%synergy
Nezumi Cutthroat
9.1%inclusion2 decks22 decks
8%synergy
Crypt Ghast
9.1%inclusion2 decks22 decks
-38%synergy
Nezumi Prowler
9.1%inclusion2 decks22 decks
8%synergy
Drainpipe Vermin
9.1%inclusion2 decks22 decks
8%synergy
Nashi, Moon Sage's Scion
9.1%inclusion2 decks22 decks
6%synergy
Elephant-Rat
7.7%inclusion1 decks13 decks
7%synergy
Virulent Silencer
6.7%inclusion1 decks15 decks
7%synergy
Instants
Whisper of the Dross
50%inclusion11 decks22 decks
47%synergy
Village Rites
50%inclusion11 decks22 decks
24%synergy
Go for the Throat
41%inclusion9 decks22 decks
18%synergy
Grim Affliction
36%inclusion8 decks22 decks
35%synergy
Defile
32%inclusion7 decks22 decks
-3%synergy
Rat Out
18%inclusion4 decks22 decks
17%synergy
Murder
18%inclusion4 decks22 decks
9%synergy
Deadly Rollick
14%inclusion3 decks22 decks
-12%synergy
Doom Blade
14%inclusion3 decks22 decks
7%synergy
Virulent Wound
14%inclusion3 decks22 decks
13%synergy
Death Denied
14%inclusion3 decks22 decks
13%synergy
Tainted Strike
14%inclusion3 decks22 decks
11%synergy
Tragic Slip
14%inclusion3 decks22 decks
-5%synergy
Withering Torment
14%inclusion3 decks22 decks
-18%synergy
Unbury
10%inclusion1 decks10 decks
9%synergy
Hero's Downfall
9.1%inclusion2 decks22 decks
3%synergy
Fell the Profane
9.1%inclusion2 decks22 decks
-11%synergy
Anoint with Affliction
9.1%inclusion2 decks22 decks
9%synergy
Deadly Dispute
9.1%inclusion2 decks22 decks
-18%synergy
Cabal Ritual
9.1%inclusion2 decks22 decks
-10%synergy
Culling the Weak
9.1%inclusion2 decks22 decks
-9%synergy
Raise the Draugr
9.1%inclusion2 decks22 decks
8%synergy
Infernal Grasp
9.1%inclusion2 decks22 decks
-16%synergy
Baleful Mastery
9.1%inclusion2 decks22 decks
1%synergy
Corrupted Conviction
9.1%inclusion2 decks22 decks
-3%synergy
Maximum Overdrive
5.3%inclusion1 decks19 decks
4%synergy
Sorceries
Kindred Dominance
45%inclusion10 decks22 decks
41%synergy
Feed the Swarm
36%inclusion8 decks22 decks
-14%synergy
Vat Emergence
32%inclusion7 decks22 decks
31%synergy
Crippling Fear
32%inclusion7 decks22 decks
29%synergy
Patriarch's Bidding
27%inclusion6 decks22 decks
23%synergy
Swarmyard Massacre
27%inclusion6 decks22 decks
25%synergy
Sign in Blood
27%inclusion6 decks22 decks
-8%synergy
Spread the Sickness
23%inclusion5 decks22 decks
22%synergy
Echoing Return
23%inclusion5 decks22 decks
20%synergy
Caress of Phyrexia
23%inclusion5 decks22 decks
22%synergy
Bloodline Bidding
20%inclusion2 decks10 decks
16%synergy
Night's Whisper
18%inclusion4 decks22 decks
-7%synergy
Diabolic Tutor
14%inclusion3 decks22 decks
0%synergy
Feed the Infection
14%inclusion3 decks22 decks
13%synergy
Reanimate
14%inclusion3 decks22 decks
-27%synergy
In Garruk's Wake
14%inclusion3 decks22 decks
10%synergy
Worthy Cost
12%inclusion2 decks17 decks
10%synergy
Damnable Pact
9.1%inclusion2 decks22 decks
5%synergy
Mutilate
9.1%inclusion2 decks22 decks
-6%synergy
Dirge of Dread
9.1%inclusion2 decks22 decks
9%synergy
Gruesome Fate
9.1%inclusion2 decks22 decks
7%synergy
Damnation
9.1%inclusion2 decks22 decks
-11%synergy
Plague of Vermin
9.1%inclusion2 decks22 decks
7%synergy
Utility Artifacts
Vanquisher's Banner
36%inclusion8 decks22 decks
33%synergy
Contagion Engine
32%inclusion7 decks22 decks
30%synergy
Door of Destinies
32%inclusion7 decks22 decks
30%synergy
Thrumming Stone
27%inclusion6 decks22 decks
23%synergy
Eldrazi Monument
27%inclusion6 decks22 decks
26%synergy
Contagion Clasp
23%inclusion5 decks22 decks
21%synergy
Coat of Arms
23%inclusion5 decks22 decks
20%synergy
Skullclamp
23%inclusion5 decks22 decks
0%synergy
Banner of Kinship
19%inclusion4 decks21 decks
17%synergy
Swiftfoot Boots
18%inclusion4 decks22 decks
-13%synergy
Akroma's Memorial
14%inclusion3 decks22 decks
13%synergy
Obelisk of Urd
14%inclusion3 decks22 decks
13%synergy
The Darkness Crystal
13%inclusion2 decks16 decks
-8%synergy
Chimil, the Inner Sun
9.1%inclusion2 decks22 decks
8%synergy
Icon of Ancestry
9.1%inclusion2 decks22 decks
8%synergy
Prosthetic Injector
9.1%inclusion2 decks22 decks
9%synergy
Lightning Greaves
9.1%inclusion2 decks22 decks
-25%synergy
Grafted Exoskeleton
9.1%inclusion2 decks22 decks
8%synergy
Enchantments
Phyrexian Arena
41%inclusion9 decks22 decks
2%synergy
Grave Pact
36%inclusion8 decks22 decks
17%synergy
Necrogen Communion
36%inclusion8 decks22 decks
35%synergy
Haunted One
23%inclusion5 decks22 decks
20%synergy
Tribute to Horobi
18%inclusion4 decks22 decks
17%synergy
Phyresis
18%inclusion4 decks22 decks
16%synergy
Bad Moon
18%inclusion4 decks22 decks
15%synergy
Black Market
14%inclusion3 decks22 decks
-7%synergy
Phyrexian Reclamation
14%inclusion3 decks22 decks
4%synergy
Vampiric Rites
9.1%inclusion2 decks22 decks
3%synergy
Sanguine Bond
9.1%inclusion2 decks22 decks
-2%synergy
Relic Putrescence
9.1%inclusion2 decks22 decks
9%synergy
Exquisite Blood
9.1%inclusion2 decks22 decks
-4%synergy
Intimidation
9.1%inclusion2 decks22 decks
9%synergy
Black Market Connections
9.1%inclusion2 decks22 decks
-16%synergy
Dark Prophecy
9.1%inclusion2 decks22 decks
5%synergy
Planeswalkers
Vraska, Betrayal's Sting
32%inclusion7 decks22 decks
29%synergy
Liliana of the Dark Realms
18%inclusion4 decks22 decks
5%synergy
Utility Lands
Bojuka Bog
68%inclusion15 decks22 decks
21%synergy
Swarmyard
64%inclusion14 decks22 decks
58%synergy
Karn's Bastion
64%inclusion14 decks22 decks
60%synergy
Cabal Coffers
59%inclusion13 decks22 decks
4%synergy
Mudflat Village
41%inclusion9 decks22 decks
38%synergy
Mortuary Mire
36%inclusion8 decks22 decks
24%synergy
Reliquary Tower
36%inclusion8 decks22 decks
7%synergy
Rogue's Passage
32%inclusion7 decks22 decks
12%synergy
Cabal Stronghold
27%inclusion6 decks22 decks
-7%synergy
Witch's Cottage
23%inclusion5 decks22 decks
-2%synergy
Three Tree City
23%inclusion5 decks22 decks
18%synergy
Urborg, Tomb of Yawgmoth
18%inclusion4 decks22 decks
-20%synergy
Secret Tunnel
17%inclusion2 decks12 decks
16%synergy
Barren Moor
14%inclusion3 decks22 decks
4%synergy
Nykthos, Shrine to Nyx
14%inclusion3 decks22 decks
-16%synergy
Access Tunnel
14%inclusion3 decks22 decks
11%synergy
Phyrexian Tower
9.1%inclusion2 decks22 decks
-17%synergy
Urza's Tower
9.1%inclusion2 decks22 decks
9%synergy
Urza's Mine
9.1%inclusion2 decks22 decks
9%synergy
Crypt of Agadeem
9.1%inclusion2 decks22 decks
-3%synergy
War Room
9.1%inclusion2 decks22 decks
-7%synergy
Urza's Power Plant
9.1%inclusion2 decks22 decks
9%synergy
Mana Artifacts
Sol Ring
73%inclusion16 decks22 decks
-13%synergy
Glistening Sphere
55%inclusion12 decks22 decks
53%synergy
Arcane Signet
50%inclusion11 decks22 decks
-11%synergy
Patchwork Banner
41%inclusion9 decks22 decks
36%synergy
Caged Sun
27%inclusion6 decks22 decks
17%synergy
Staff of Compleation
27%inclusion6 decks22 decks
26%synergy
Thought Vessel
18%inclusion4 decks22 decks
-6%synergy
Gauntlet of Power
14%inclusion3 decks22 decks
11%synergy
Charcoal Diamond
14%inclusion3 decks22 decks
-8%synergy
Everflowing Chalice
9.1%inclusion2 decks22 decks
4%synergy
Commander's Sphere
9.1%inclusion2 decks22 decks
2%synergy
Heraldic Banner
9.1%inclusion2 decks22 decks
4%synergy
Throne of Eldraine
9.1%inclusion2 decks22 decks
0%synergy
Mind Stone
9.1%inclusion2 decks22 decks
-18%synergy
The Soul Stone
7.7%inclusion1 decks13 decks
-8%synergy
Lands
Swamp
100%inclusion22 decks22 decks
5%synergy
Path of Ancestry
41%inclusion9 decks22 decks
36%synergy
Command Tower
32%inclusion7 decks22 decks
26%synergy
Cavern of Souls
27%inclusion6 decks22 decks
20%synergy
Myriad Landscape
23%inclusion5 decks22 decks
-1%synergy
Big Apple, 3 a.m.
13%inclusion1 decks8 decks
11%synergy
Escape Tunnel
9.1%inclusion2 decks22 decks
8%synergy
Fell the Profane
9.1%inclusion2 decks22 decks
-11%synergy
Evolving Wilds
9.1%inclusion2 decks22 decks
5%synergy
Daily Bugle Building
7.7%inclusion1 decks13 decks
7%synergy
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