Karumonix, the Rat King (Commander) - Core

Karumonix, the Rat King
Rank #400
880decks
As CommanderAs CardAverage DeckDecks
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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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Blightbelly Rat
85%inclusion747 decks880 decks
81%synergy
Piper of the Swarm
82%inclusion723 decks880 decks
75%synergy
Pack Rat
75%inclusion660 decks880 decks
69%synergy
Ichor Rats
71%inclusion626 decks880 decks
68%synergy
Ogre Slumlord
77%inclusion675 decks880 decks
67%synergy
Marrow-Gnawer
70%inclusion616 decks880 decks
67%synergy
Typhoid Rats
69%inclusion607 decks880 decks
65%synergy
Infectious Inquiry
67%inclusion587 decks880 decks
64%synergy
Rancid Rats
64%inclusion561 decks880 decks
61%synergy
Vraska's Fall
64%inclusion559 decks880 decks
60%synergy
Top Cards
Lord Skitter, Sewer King
68%inclusion601 decks880 decks
60%synergy
Septic Rats
62%inclusion546 decks880 decks
60%synergy
Lord Skitter's Butcher
61%inclusion539 decks880 decks
58%synergy
Drown in Ichor
60%inclusion530 decks880 decks
57%synergy
Crypt Rats
59%inclusion523 decks880 decks
55%synergy
Tangled Colony
57%inclusion504 decks880 decks
54%synergy
Burglar Rat
56%inclusion494 decks880 decks
46%synergy
Voracious Vermin
56%inclusion492 decks880 decks
53%synergy
Dark Ritual
52%inclusion454 decks880 decks
-15%synergy
Rat Colony
51%inclusion453 decks880 decks
46%synergy
Creatures
Stronghold Rats
48%inclusion425 decks880 decks
45%synergy
Persistent Marshstalker
46%inclusion403 decks876 decks
43%synergy
Chittering Skitterling
45%inclusion398 decks880 decks
44%synergy
Gnat Miser
44%inclusion391 decks880 decks
42%synergy
Wave of Rats
42%inclusion372 decks880 decks
41%synergy
Ratcatcher
40%inclusion349 decks880 decks
36%synergy
Pestilence Rats
39%inclusion347 decks880 decks
37%synergy
Ruin Rat
36%inclusion317 decks880 decks
35%synergy
Nezumi Prowler
36%inclusion317 decks880 decks
35%synergy
Swarm of Rats
36%inclusion316 decks880 decks
33%synergy
Chittering Witch
33%inclusion292 decks880 decks
29%synergy
Nezumi Informant
33%inclusion290 decks880 decks
27%synergy
Ravenous Rats
33%inclusion289 decks880 decks
31%synergy
Changeling Outcast
33%inclusion287 decks880 decks
28%synergy
Gnawing Vermin
32%inclusion285 decks880 decks
31%synergy
Nezumi Cutthroat
32%inclusion283 decks880 decks
31%synergy
Ashcoat of the Shadow Swarm
31%inclusion275 decks880 decks
28%synergy
Nashi, Moon Sage's Scion
31%inclusion273 decks880 decks
27%synergy
Ink-Eyes, Servant of Oni
30%inclusion266 decks880 decks
27%synergy
Old Flitterfang
29%inclusion259 decks880 decks
28%synergy
Drainpipe Vermin
29%inclusion252 decks880 decks
27%synergy
Rat King, Pale Piper
28%inclusion53 decks186 decks
24%synergy
Razortooth Rats
27%inclusion241 decks880 decks
27%synergy
Twisted Sewer-Witch
27%inclusion236 decks880 decks
25%synergy
Rat King, Verminister
26%inclusion57 decks216 decks
23%synergy
Engine Rat
25%inclusion141 decks566 decks
23%synergy
Ruthless Radrat
25%inclusion216 decks880 decks
24%synergy
Undercity Dire Rat
20%inclusion88 decks439 decks
18%synergy
Nezumi Graverobber
20%inclusion176 decks880 decks
19%synergy
Mukotai Ambusher
20%inclusion173 decks880 decks
19%synergy
Throat Slitter
20%inclusion173 decks880 decks
18%synergy
Rotting Rats
19%inclusion171 decks880 decks
16%synergy
Innocuous Rat
19%inclusion150 decks780 decks
18%synergy
Valley Rotcaller
19%inclusion167 decks880 decks
16%synergy
Locust Miser
18%inclusion162 decks880 decks
17%synergy
Relentless Rats
18%inclusion154 decks880 decks
16%synergy
Refurbished Familiar
17%inclusion153 decks880 decks
15%synergy
Ayara, First of Locthwain
17%inclusion153 decks880 decks
-8%synergy
Species Specialist
17%inclusion152 decks880 decks
14%synergy
Sinuous Vermin
17%inclusion147 decks880 decks
16%synergy
Nezumi Bladeblesser
16%inclusion143 decks880 decks
16%synergy
Skullsnatcher
16%inclusion140 decks880 decks
15%synergy
Daggerfang Duo
14%inclusion121 decks861 decks
13%synergy
Chittering Rats
13%inclusion116 decks880 decks
13%synergy
Gray Merchant of Asphodel
13%inclusion112 decks880 decks
-38%synergy
Okiba-Gang Shinobi
13%inclusion111 decks880 decks
12%synergy
Adaptive Automaton
12%inclusion108 decks880 decks
11%synergy
Bog Rats
11%inclusion101 decks880 decks
11%synergy
Crypt Ghast
11%inclusion101 decks880 decks
-36%synergy
Thornplate Intimidator
10%inclusion89 decks871 decks
9%synergy
Instants
Whisper of the Dross
51%inclusion445 decks880 decks
48%synergy
Village Rites
40%inclusion355 decks880 decks
15%synergy
Defile
40%inclusion353 decks880 decks
4%synergy
Grim Affliction
31%inclusion274 decks880 decks
29%synergy
Rat Out
30%inclusion262 decks880 decks
28%synergy
Go for the Throat
29%inclusion258 decks880 decks
7%synergy
Tainted Strike
21%inclusion188 decks880 decks
18%synergy
Corrupted Conviction
21%inclusion186 decks880 decks
9%synergy
Anoint with Affliction
20%inclusion178 decks880 decks
20%synergy
Deadly Dispute
19%inclusion168 decks880 decks
-7%synergy
Murder
19%inclusion167 decks880 decks
9%synergy
Tragic Slip
17%inclusion149 decks880 decks
-2%synergy
Infernal Grasp
17%inclusion148 decks880 decks
-8%synergy
Consuming Corruption
15%inclusion132 decks880 decks
-1%synergy
Foul-Tongue Shriek
15%inclusion130 decks880 decks
13%synergy
Hero's Downfall
13%inclusion117 decks880 decks
7%synergy
Raise the Draugr
12%inclusion108 decks880 decks
11%synergy
Doom Blade
12%inclusion106 decks880 decks
5%synergy
Withering Torment
12%inclusion93 decks783 decks
-20%synergy
Virulent Wound
12%inclusion103 decks880 decks
11%synergy
Gravepurge
10%inclusion91 decks880 decks
9%synergy
Fell the Profane
9.3%inclusion82 decks880 decks
-10%synergy
Malakir Rebirth
8.9%inclusion78 decks880 decks
-14%synergy
Deadly Rollick
8.0%inclusion70 decks880 decks
-17%synergy
Offer Immortality
7.6%inclusion67 decks880 decks
6%synergy
Altar's Reap
7.2%inclusion63 decks880 decks
5%synergy
Bitter Triumph
7.2%inclusion63 decks880 decks
-3%synergy
Not Dead After All
6.9%inclusion61 decks880 decks
-4%synergy
Death Denied
6.4%inclusion56 decks880 decks
6%synergy
Sheoldred's Edict
5.9%inclusion52 decks880 decks
-9%synergy
Feign Death
5.7%inclusion50 decks880 decks
-3%synergy
Sudden Spoiling
5.2%inclusion46 decks880 decks
-3%synergy
Sorceries
Phyresis Outbreak
44%inclusion385 decks880 decks
42%synergy
Feed the Swarm
40%inclusion349 decks880 decks
-11%synergy
Crippling Fear
37%inclusion328 decks880 decks
34%synergy
Revenge of the Rats
34%inclusion243 decks713 decks
31%synergy
Sign in Blood
31%inclusion276 decks880 decks
-4%synergy
Vat Emergence
31%inclusion269 decks880 decks
29%synergy
Patriarch's Bidding
28%inclusion242 decks880 decks
23%synergy
Kindred Dominance
24%inclusion212 decks880 decks
19%synergy
Spread the Sickness
21%inclusion185 decks880 decks
20%synergy
Swarmyard Massacre
19%inclusion160 decks861 decks
16%synergy
Bloodline Bidding
18%inclusion40 decks226 decks
14%synergy
Read the Bones
18%inclusion155 decks880 decks
1%synergy
Feed the Infection
16%inclusion143 decks880 decks
16%synergy
Night's Whisper
15%inclusion135 decks880 decks
-10%synergy
Unearth
13%inclusion113 decks880 decks
4%synergy
Diabolic Tutor
13%inclusion110 decks880 decks
-1%synergy
Echoing Return
12%inclusion105 decks880 decks
9%synergy
Gruesome Fate
12%inclusion104 decks880 decks
10%synergy
Geth's Summons
11%inclusion96 decks880 decks
11%synergy
Plague of Vermin
11%inclusion95 decks880 decks
8%synergy
Victimize
11%inclusion94 decks880 decks
-17%synergy
Lab Rats
10%inclusion86 decks880 decks
9%synergy
Mutilate
10%inclusion85 decks880 decks
-6%synergy
Caress of Phyrexia
9.3%inclusion82 decks880 decks
9%synergy
Return from Extinction
9.1%inclusion80 decks880 decks
9%synergy
Toxic Deluge
8.9%inclusion78 decks880 decks
-28%synergy
Forever Young
7.8%inclusion69 decks880 decks
6%synergy
Pact of the Serpent
7.4%inclusion65 decks880 decks
6%synergy
Damnation
7.2%inclusion63 decks880 decks
-13%synergy
Fell
6.5%inclusion57 decks880 decks
3%synergy
Haunting Voyage
6.3%inclusion55 decks880 decks
5%synergy
Reanimate
5.6%inclusion49 decks880 decks
-35%synergy
Diabolic Intent
5.3%inclusion47 decks880 decks
-10%synergy
Syphon Mind
5.3%inclusion47 decks880 decks
-7%synergy
Utility Artifacts
Bontu's Monument
49%inclusion430 decks880 decks
21%synergy
Jet Medallion
45%inclusion397 decks880 decks
-17%synergy
Herald's Horn
41%inclusion364 decks880 decks
36%synergy
Contagion Clasp
32%inclusion279 decks880 decks
30%synergy
Vanquisher's Banner
30%inclusion261 decks880 decks
26%synergy
Skullclamp
29%inclusion255 decks880 decks
7%synergy
Swiftfoot Boots
19%inclusion169 decks880 decks
-12%synergy
Thrumming Stone
15%inclusion135 decks880 decks
11%synergy
Contagion Engine
14%inclusion126 decks880 decks
13%synergy
Lightning Greaves
13%inclusion117 decks880 decks
-21%synergy
Icon of Ancestry
13%inclusion116 decks880 decks
12%synergy
Coat of Arms
12%inclusion105 decks880 decks
9%synergy
Prosthetic Injector
12%inclusion104 decks880 decks
12%synergy
Chronicle of Victory
11%inclusion26 decks227 decks
9%synergy
Door of Destinies
11%inclusion93 decks880 decks
8%synergy
Banner of Kinship
10%inclusion75 decks715 decks
8%synergy
Whip of Erebos
10%inclusion91 decks880 decks
-1%synergy
Grafted Exoskeleton
10%inclusion88 decks880 decks
9%synergy
Wayfarer's Bauble
7.3%inclusion64 decks880 decks
-8%synergy
Eldrazi Monument
6.5%inclusion57 decks880 decks
5%synergy
The Darkness Crystal
5.8%inclusion26 decks446 decks
-14%synergy
Hall of Triumph
5.6%inclusion49 decks880 decks
5%synergy
Vat of Rebirth
5.3%inclusion47 decks880 decks
2%synergy
Enchantments
Necrogen Communion
43%inclusion377 decks880 decks
41%synergy
Phyrexian Arena
35%inclusion305 decks880 decks
-5%synergy
Cover of Darkness
29%inclusion253 decks880 decks
26%synergy
Bad Moon
23%inclusion202 decks880 decks
20%synergy
Phyresis
21%inclusion188 decks880 decks
19%synergy
Haunted One
20%inclusion173 decks880 decks
17%synergy
Oversold Cemetery
18%inclusion157 decks880 decks
13%synergy
Tribute to Horobi
16%inclusion141 decks880 decks
15%synergy
Grave Pact
12%inclusion107 decks880 decks
-7%synergy
Black Market
12%inclusion103 decks880 decks
-9%synergy
Black Market Connections
11%inclusion95 decks880 decks
-14%synergy
Vampiric Rites
10%inclusion87 decks880 decks
4%synergy
Intimidation
8.8%inclusion77 decks880 decks
8%synergy
Lord Skitter's Blessing
8.4%inclusion74 decks880 decks
8%synergy
Dictate of Erebos
6.1%inclusion54 decks880 decks
-5%synergy
Phyrexian Reclamation
5.8%inclusion51 decks880 decks
-4%synergy
Relic Putrescence
5.0%inclusion44 decks880 decks
5%synergy
Dark Prophecy
5.0%inclusion44 decks880 decks
1%synergy
Planeswalkers
Vraska, Betrayal's Sting
26%inclusion225 decks880 decks
23%synergy
Liliana of the Dark Realms
8.1%inclusion71 decks880 decks
-6%synergy
Utility Lands
Swarmyard
49%inclusion434 decks880 decks
44%synergy
Karn's Bastion
41%inclusion365 decks880 decks
38%synergy
Rogue's Passage
40%inclusion353 decks880 decks
21%synergy
Bojuka Bog
39%inclusion340 decks880 decks
-8%synergy
Mudflat Village
38%inclusion335 decks880 decks
35%synergy
Cabal Coffers
29%inclusion251 decks880 decks
-26%synergy
Witch's Cottage
26%inclusion228 decks880 decks
1%synergy
Mortuary Mire
23%inclusion204 decks880 decks
10%synergy
Cabal Stronghold
21%inclusion184 decks880 decks
-13%synergy
Reliquary Tower
18%inclusion156 decks880 decks
-12%synergy
Access Tunnel
17%inclusion151 decks880 decks
14%synergy
Three Tree City
16%inclusion143 decks880 decks
12%synergy
Urborg, Tomb of Yawgmoth
14%inclusion125 decks880 decks
-23%synergy
Nykthos, Shrine to Nyx
12%inclusion108 decks880 decks
-18%synergy
Castle Locthwain
10%inclusion90 decks880 decks
-6%synergy
Barren Moor
10%inclusion87 decks880 decks
0%synergy
Secret Tunnel
8.9%inclusion26 decks291 decks
8%synergy
Crypt of Agadeem
8.3%inclusion73 decks880 decks
-3%synergy
Phyrexian Tower
8.2%inclusion72 decks880 decks
-18%synergy
War Room
7.3%inclusion64 decks880 decks
-9%synergy
The Dross Pits
6.4%inclusion56 decks880 decks
5%synergy
Temple of the False God
6.4%inclusion56 decks880 decks
-1%synergy
Shizo, Death's Storehouse
5.8%inclusion51 decks880 decks
-4%synergy
Memorial to Folly
5.3%inclusion47 decks880 decks
2%synergy
Takenuma, Abandoned Mire
5.1%inclusion45 decks880 decks
-11%synergy
Mana Artifacts
Sol Ring
75%inclusion656 decks880 decks
-11%synergy
Arcane Signet
47%inclusion411 decks880 decks
-15%synergy
Glistening Sphere
33%inclusion294 decks880 decks
32%synergy
Charcoal Diamond
26%inclusion230 decks880 decks
4%synergy
Patchwork Banner
24%inclusion205 decks871 decks
19%synergy
Heraldic Banner
18%inclusion161 decks880 decks
13%synergy
Mind Stone
18%inclusion156 decks880 decks
-11%synergy
Staff of Compleation
16%inclusion139 decks880 decks
14%synergy
Phyrexian Atlas
14%inclusion122 decks880 decks
14%synergy
Caged Sun
9.3%inclusion82 decks880 decks
-1%synergy
Thought Vessel
8.2%inclusion72 decks880 decks
-17%synergy
Commander's Sphere
7.6%inclusion67 decks880 decks
-0%synergy
Lands
Swamp
99%inclusion870 decks880 decks
4%synergy
Path of Ancestry
35%inclusion306 decks880 decks
30%synergy
Myriad Landscape
19%inclusion168 decks880 decks
-6%synergy
Big Apple, 3 a.m.
10%inclusion19 decks186 decks
8%synergy
Fell the Profane
9.3%inclusion82 decks880 decks
-10%synergy
Cavern of Souls
9.0%inclusion79 decks880 decks
2%synergy
Malakir Rebirth
8.9%inclusion78 decks880 decks
-14%synergy
Command Tower
8.2%inclusion72 decks880 decks
2%synergy
Escape Tunnel
8.0%inclusion70 decks880 decks
7%synergy
Evolving Wilds
5.2%inclusion46 decks880 decks
1%synergy
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