Karumonix, the Rat King (Commander) - Rats

Karumonix, the Rat King
Rank #385
1,074decks
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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Utility Lands
Mana Artifacts
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Rat King, Pale Piper
23%inclusion16 decks70 decks
18%synergy
Rat King, Verminister
22%inclusion19 decks87 decks
19%synergy
Big Apple, 3 a.m.
8.6%inclusion6 decks70 decks
7%synergy
Shredder's Technique
5.6%inclusion4 decks72 decks
2%synergy
Splinter's Technique
4.6%inclusion4 decks87 decks
3%synergy
High Synergy Cards
Blightbelly Rat
91%inclusion974 decks1.07K decks
87%synergy
Piper of the Swarm
88%inclusion940 decks1.07K decks
81%synergy
Pack Rat
84%inclusion898 decks1.07K decks
78%synergy
Ichor Rats
80%inclusion861 decks1.07K decks
77%synergy
Ogre Slumlord
84%inclusion902 decks1.07K decks
74%synergy
Typhoid Rats
76%inclusion819 decks1.07K decks
72%synergy
Lord Skitter, Sewer King
80%inclusion855 decks1.07K decks
71%synergy
Rancid Rats
73%inclusion781 decks1.07K decks
70%synergy
Lord Skitter's Butcher
73%inclusion782 decks1.07K decks
70%synergy
Infectious Inquiry
72%inclusion773 decks1.07K decks
69%synergy
Top Cards
Marrow-Gnawer
71%inclusion766 decks1.07K decks
68%synergy
Septic Rats
70%inclusion749 decks1.07K decks
68%synergy
Vraska's Fall
69%inclusion741 decks1.07K decks
66%synergy
Tangled Colony
69%inclusion736 decks1.07K decks
65%synergy
Crypt Rats
67%inclusion721 decks1.07K decks
63%synergy
Drown in Ichor
65%inclusion698 decks1.07K decks
61%synergy
Burglar Rat
65%inclusion695 decks1.07K decks
54%synergy
Voracious Vermin
64%inclusion686 decks1.07K decks
61%synergy
Stronghold Rats
57%inclusion617 decks1.07K decks
54%synergy
Dark Ritual
57%inclusion612 decks1.07K decks
-10%synergy
Game Changers
Demonic Tutor
22%inclusion231 decks1.07K decks
-6%synergy
Vampiric Tutor
16%inclusion168 decks1.07K decks
-5%synergy
Bolas's Citadel
15%inclusion165 decks1.07K decks
-13%synergy
Creatures
Gnat Miser
53%inclusion564 decks1.07K decks
50%synergy
Persistent Marshstalker
52%inclusion412 decks793 decks
49%synergy
Rat Colony
51%inclusion547 decks1.07K decks
45%synergy
Wave of Rats
49%inclusion522 decks1.07K decks
47%synergy
Chittering Skitterling
49%inclusion521 decks1.07K decks
48%synergy
Ratcatcher
47%inclusion507 decks1.07K decks
44%synergy
Nezumi Informant
41%inclusion445 decks1.07K decks
35%synergy
Ashcoat of the Shadow Swarm
41%inclusion439 decks1.07K decks
37%synergy
Swarm of Rats
41%inclusion437 decks1.07K decks
38%synergy
Pestilence Rats
39%inclusion424 decks1.07K decks
37%synergy
Changeling Outcast
38%inclusion412 decks1.07K decks
33%synergy
Nashi, Moon Sage's Scion
38%inclusion409 decks1.07K decks
34%synergy
Nezumi Prowler
37%inclusion401 decks1.07K decks
36%synergy
Ink-Eyes, Servant of Oni
37%inclusion393 decks1.07K decks
33%synergy
Chittering Witch
37%inclusion393 decks1.07K decks
32%synergy
Ruin Rat
35%inclusion372 decks1.07K decks
33%synergy
Old Flitterfang
35%inclusion372 decks1.07K decks
33%synergy
Ravenous Rats
34%inclusion364 decks1.07K decks
32%synergy
Ruthless Radrat
33%inclusion350 decks1.07K decks
32%synergy
Gnawing Vermin
32%inclusion348 decks1.07K decks
31%synergy
Nezumi Cutthroat
29%inclusion316 decks1.07K decks
29%synergy
Drainpipe Vermin
28%inclusion297 decks1.07K decks
26%synergy
Engine Rat
27%inclusion56 decks205 decks
26%synergy
Throat Slitter
27%inclusion287 decks1.07K decks
25%synergy
Twisted Sewer-Witch
26%inclusion281 decks1.07K decks
25%synergy
Razortooth Rats
25%inclusion268 decks1.07K decks
24%synergy
Locust Miser
24%inclusion258 decks1.07K decks
22%synergy
Innocuous Rat
24%inclusion142 decks597 decks
23%synergy
Ayara, First of Locthwain
23%inclusion249 decks1.07K decks
-2%synergy
Valley Rotcaller
21%inclusion170 decks805 decks
18%synergy
Mukotai Ambusher
20%inclusion214 decks1.07K decks
19%synergy
Rotting Rats
20%inclusion211 decks1.07K decks
16%synergy
Species Specialist
19%inclusion200 decks1.07K decks
15%synergy
Gray Merchant of Asphodel
18%inclusion193 decks1.07K decks
-33%synergy
Undercity Dire Rat
18%inclusion28 decks157 decks
16%synergy
Daggerfang Duo
18%inclusion139 decks780 decks
17%synergy
Refurbished Familiar
17%inclusion159 decks935 decks
15%synergy
Nezumi Bladeblesser
16%inclusion175 decks1.07K decks
16%synergy
Okiba-Gang Shinobi
16%inclusion173 decks1.07K decks
15%synergy
Nezumi Graverobber
16%inclusion171 decks1.07K decks
14%synergy
Sinuous Vermin
16%inclusion167 decks1.07K decks
15%synergy
Crypt Ghast
16%inclusion167 decks1.07K decks
-32%synergy
Skullsnatcher
15%inclusion160 decks1.07K decks
14%synergy
Relentless Rats
14%inclusion152 decks1.07K decks
12%synergy
Chittering Rats
14%inclusion146 decks1.07K decks
13%synergy
Nezumi Linkbreaker
12%inclusion133 decks1.07K decks
11%synergy
Adaptive Automaton
12%inclusion131 decks1.07K decks
11%synergy
Nezumi Bone-Reader
12%inclusion127 decks1.07K decks
11%synergy
Scrib Nibblers
11%inclusion119 decks1.07K decks
11%synergy
Roaming Throne
11%inclusion113 decks1.07K decks
8%synergy
Instants
Whisper of the Dross
53%inclusion573 decks1.07K decks
51%synergy
Village Rites
45%inclusion485 decks1.07K decks
20%synergy
Defile
42%inclusion451 decks1.07K decks
6%synergy
Rat Out
33%inclusion350 decks1.07K decks
31%synergy
Go for the Throat
32%inclusion343 decks1.07K decks
9%synergy
Grim Affliction
30%inclusion319 decks1.07K decks
28%synergy
Corrupted Conviction
25%inclusion266 decks1.07K decks
12%synergy
Tainted Strike
22%inclusion231 decks1.07K decks
18%synergy
Anoint with Affliction
20%inclusion210 decks1.07K decks
19%synergy
Murder
19%inclusion206 decks1.07K decks
9%synergy
Tragic Slip
18%inclusion195 decks1.07K decks
-2%synergy
Deadly Dispute
18%inclusion190 decks1.07K decks
-8%synergy
Infernal Grasp
16%inclusion171 decks1.07K decks
-9%synergy
Withering Torment
16%inclusion95 decks604 decks
-16%synergy
Foul-Tongue Shriek
14%inclusion154 decks1.07K decks
13%synergy
Consuming Corruption
14%inclusion136 decks955 decks
-1%synergy
Raise the Draugr
13%inclusion137 decks1.07K decks
12%synergy
Deadly Rollick
12%inclusion134 decks1.07K decks
-12%synergy
Doom Blade
11%inclusion118 decks1.07K decks
4%synergy
Hero's Downfall
11%inclusion113 decks1.07K decks
4%synergy
Bitter Triumph
10%inclusion107 decks1.07K decks
0%synergy
Virulent Wound
10%inclusion104 decks1.07K decks
9%synergy
Malakir Rebirth
9.5%inclusion102 decks1.07K decks
-13%synergy
Gravepurge
9.4%inclusion101 decks1.07K decks
8%synergy
Fell the Profane
9.0%inclusion88 decks974 decks
-10%synergy
Not Dead After All
7.3%inclusion78 decks1.07K decks
-4%synergy
Sudden Spoiling
6.8%inclusion73 decks1.07K decks
-2%synergy
Altar's Reap
6.4%inclusion69 decks1.07K decks
4%synergy
Unbury
6.3%inclusion6 decks95 decks
6%synergy
Death Denied
6.2%inclusion67 decks1.07K decks
5%synergy
Offer Immortality
6.1%inclusion65 decks1.07K decks
4%synergy
Sheoldred's Edict
5.6%inclusion60 decks1.07K decks
-9%synergy
Cabal Ritual
5.4%inclusion58 decks1.07K decks
-13%synergy
Feign Death
5.1%inclusion55 decks1.07K decks
-3%synergy
Sorceries
Phyresis Outbreak
51%inclusion547 decks1.07K decks
49%synergy
Feed the Swarm
41%inclusion443 decks1.07K decks
-9%synergy
Revenge of the Rats
40%inclusion177 decks447 decks
37%synergy
Crippling Fear
37%inclusion394 decks1.07K decks
34%synergy
Vat Emergence
32%inclusion347 decks1.07K decks
31%synergy
Patriarch's Bidding
32%inclusion346 decks1.07K decks
28%synergy
Sign in Blood
32%inclusion340 decks1.07K decks
-4%synergy
Swarmyard Massacre
26%inclusion201 decks780 decks
23%synergy
Kindred Dominance
25%inclusion273 decks1.07K decks
21%synergy
Spread the Sickness
22%inclusion236 decks1.07K decks
21%synergy
Read the Bones
19%inclusion206 decks1.07K decks
2%synergy
Bloodline Bidding
18%inclusion17 decks96 decks
13%synergy
Feed the Infection
16%inclusion174 decks1.07K decks
16%synergy
Night's Whisper
16%inclusion174 decks1.07K decks
-8%synergy
Plague of Vermin
14%inclusion151 decks1.07K decks
12%synergy
Unearth
13%inclusion143 decks1.07K decks
5%synergy
Damnation
12%inclusion134 decks1.07K decks
-8%synergy
Toxic Deluge
12%inclusion129 decks1.07K decks
-25%synergy
Diabolic Tutor
12%inclusion124 decks1.07K decks
-3%synergy
Caress of Phyrexia
11%inclusion119 decks1.07K decks
10%synergy
Gruesome Fate
11%inclusion117 decks1.07K decks
9%synergy
Mutilate
11%inclusion116 decks1.07K decks
-6%synergy
Lab Rats
11%inclusion116 decks1.07K decks
10%synergy
Victimize
11%inclusion114 decks1.07K decks
-16%synergy
Geth's Summons
11%inclusion114 decks1.07K decks
10%synergy
Echoing Return
9.1%inclusion98 decks1.07K decks
6%synergy
Diabolic Intent
9.0%inclusion97 decks1.07K decks
-6%synergy
Reanimate
8.5%inclusion91 decks1.07K decks
-31%synergy
Return from Extinction
8.3%inclusion89 decks1.07K decks
8%synergy
Pact of the Serpent
8.3%inclusion89 decks1.07K decks
7%synergy
Fell
7.7%inclusion62 decks805 decks
4%synergy
Insatiable Avarice
7.5%inclusion81 decks1.07K decks
-4%synergy
Forever Young
7.4%inclusion79 decks1.07K decks
6%synergy
Haunting Voyage
6.3%inclusion68 decks1.07K decks
5%synergy
Bubbling Muck
5.7%inclusion61 decks1.07K decks
-10%synergy
Psychic Whorl
5.6%inclusion44 decks780 decks
5%synergy
Eaten Alive
5.5%inclusion59 decks1.07K decks
2%synergy
In Garruk's Wake
5.3%inclusion57 decks1.07K decks
1%synergy
Utility Artifacts
Bontu's Monument
56%inclusion599 decks1.07K decks
27%synergy
Jet Medallion
51%inclusion553 decks1.07K decks
-10%synergy
Herald's Horn
45%inclusion485 decks1.07K decks
39%synergy
Skullclamp
36%inclusion390 decks1.07K decks
14%synergy
Vanquisher's Banner
32%inclusion348 decks1.07K decks
28%synergy
Contagion Clasp
32%inclusion346 decks1.07K decks
30%synergy
Swiftfoot Boots
20%inclusion220 decks1.07K decks
-11%synergy
Contagion Engine
16%inclusion174 decks1.07K decks
14%synergy
Banner of Kinship
16%inclusion71 decks455 decks
13%synergy
Coat of Arms
13%inclusion136 decks1.07K decks
10%synergy
Lightning Greaves
12%inclusion132 decks1.07K decks
-21%synergy
Icon of Ancestry
12%inclusion131 decks1.07K decks
11%synergy
Door of Destinies
12%inclusion131 decks1.07K decks
10%synergy
Whip of Erebos
11%inclusion123 decks1.07K decks
1%synergy
Thrumming Stone
9.5%inclusion102 decks1.07K decks
5%synergy
Grafted Exoskeleton
9.4%inclusion101 decks1.07K decks
8%synergy
Chronicle of Victory
9.4%inclusion9 decks96 decks
6%synergy
Prosthetic Injector
9.0%inclusion97 decks1.07K decks
9%synergy
The Darkness Crystal
8.9%inclusion14 decks157 decks
-11%synergy
Wayfarer's Bauble
7.1%inclusion76 decks1.07K decks
-8%synergy
Vat of Rebirth
6.3%inclusion68 decks1.07K decks
3%synergy
Ashnod's Altar
6.3%inclusion68 decks1.07K decks
-13%synergy
Eldrazi Monument
6.3%inclusion68 decks1.07K decks
5%synergy
Hall of Triumph
5.9%inclusion63 decks1.07K decks
6%synergy
Sword of the Squeak
5.5%inclusion43 decks780 decks
5%synergy
Sword of Truth and Justice
5.3%inclusion57 decks1.07K decks
5%synergy
Gathering Stone
5.2%inclusion5 decks96 decks
4%synergy
Enchantments
Necrogen Communion
43%inclusion466 decks1.07K decks
42%synergy
Phyrexian Arena
37%inclusion397 decks1.07K decks
-3%synergy
Cover of Darkness
30%inclusion317 decks1.07K decks
27%synergy
Bad Moon
25%inclusion265 decks1.07K decks
21%synergy
Haunted One
24%inclusion256 decks1.07K decks
21%synergy
Oversold Cemetery
23%inclusion245 decks1.07K decks
17%synergy
Phyresis
22%inclusion240 decks1.07K decks
20%synergy
Grave Pact
17%inclusion187 decks1.07K decks
-2%synergy
Tribute to Horobi
17%inclusion180 decks1.07K decks
16%synergy
Black Market
16%inclusion176 decks1.07K decks
-5%synergy
Black Market Connections
14%inclusion152 decks1.07K decks
-10%synergy
Vampiric Rites
12%inclusion130 decks1.07K decks
6%synergy
Lord Skitter's Blessing
11%inclusion115 decks1.07K decks
10%synergy
Intimidation
7.9%inclusion85 decks1.07K decks
7%synergy
Dictate of Erebos
6.6%inclusion71 decks1.07K decks
-4%synergy
Dark Prophecy
6.6%inclusion71 decks1.07K decks
3%synergy
The Meathook Massacre
6.2%inclusion67 decks1.07K decks
-11%synergy
Phyrexian Reclamation
6.2%inclusion67 decks1.07K decks
-4%synergy
Planeswalkers
Vraska, Betrayal's Sting
30%inclusion324 decks1.07K decks
28%synergy
Liliana of the Dark Realms
10%inclusion111 decks1.07K decks
-4%synergy
Utility Lands
Swarmyard
54%inclusion578 decks1.07K decks
48%synergy
Bojuka Bog
50%inclusion540 decks1.07K decks
3%synergy
Karn's Bastion
50%inclusion535 decks1.07K decks
46%synergy
Mudflat Village
40%inclusion331 decks832 decks
37%synergy
Rogue's Passage
40%inclusion425 decks1.07K decks
21%synergy
Cabal Coffers
36%inclusion389 decks1.07K decks
-19%synergy
Witch's Cottage
34%inclusion360 decks1.07K decks
9%synergy
Mortuary Mire
27%inclusion285 decks1.07K decks
13%synergy
Cabal Stronghold
26%inclusion282 decks1.07K decks
-8%synergy
Reliquary Tower
22%inclusion236 decks1.07K decks
-8%synergy
Urborg, Tomb of Yawgmoth
21%inclusion230 decks1.07K decks
-16%synergy
Nykthos, Shrine to Nyx
18%inclusion196 decks1.07K decks
-12%synergy
Three Tree City
18%inclusion143 decks805 decks
13%synergy
Access Tunnel
17%inclusion183 decks1.07K decks
14%synergy
Phyrexian Tower
15%inclusion159 decks1.07K decks
-10%synergy
Castle Locthwain
12%inclusion131 decks1.07K decks
-5%synergy
Shizo, Death's Storehouse
11%inclusion123 decks1.07K decks
1%synergy
Crypt of Agadeem
11%inclusion113 decks1.07K decks
-1%synergy
War Room
10%inclusion112 decks1.07K decks
-6%synergy
Secret Tunnel
10%inclusion12 decks122 decks
9%synergy
Barren Moor
10%inclusion105 decks1.07K decks
0%synergy
Temple of the False God
8.1%inclusion87 decks1.07K decks
0%synergy
Takenuma, Abandoned Mire
7.0%inclusion75 decks1.07K decks
-9%synergy
The Dross Pits
6.9%inclusion74 decks1.07K decks
5%synergy
Minas Morgul, Dark Fortress
6.0%inclusion64 decks1.07K decks
3%synergy
Mana Artifacts
Sol Ring
81%inclusion867 decks1.07K decks
-5%synergy
Arcane Signet
53%inclusion569 decks1.07K decks
-9%synergy
Glistening Sphere
40%inclusion431 decks1.07K decks
39%synergy
Patchwork Banner
29%inclusion225 decks788 decks
24%synergy
Charcoal Diamond
23%inclusion251 decks1.07K decks
1%synergy
Mind Stone
19%inclusion200 decks1.07K decks
-10%synergy
Staff of Compleation
16%inclusion171 decks1.07K decks
14%synergy
Heraldic Banner
14%inclusion151 decks1.07K decks
9%synergy
Phyrexian Atlas
12%inclusion126 decks1.07K decks
11%synergy
Caged Sun
11%inclusion115 decks1.07K decks
-1%synergy
Thought Vessel
10%inclusion108 decks1.07K decks
-16%synergy
Commander's Sphere
8.8%inclusion94 decks1.07K decks
0%synergy
The Soul Stone
7.0%inclusion10 decks142 decks
-7%synergy
Throne of Eldraine
5.9%inclusion63 decks1.07K decks
-4%synergy
Gauntlet of Power
5.3%inclusion57 decks1.07K decks
2%synergy
Lands
Swamp
98%inclusion1.05K decks1.07K decks
3%synergy
Path of Ancestry
37%inclusion397 decks1.07K decks
32%synergy
Myriad Landscape
24%inclusion255 decks1.07K decks
-2%synergy
Cavern of Souls
15%inclusion156 decks1.07K decks
8%synergy
Command Tower
13%inclusion141 decks1.07K decks
8%synergy
Malakir Rebirth
9.5%inclusion102 decks1.07K decks
-13%synergy
Fell the Profane
9.0%inclusion88 decks974 decks
-10%synergy
Escape Tunnel
8.9%inclusion96 decks1.07K decks
8%synergy
Evolving Wilds
8.1%inclusion87 decks1.07K decks
4%synergy
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