Karumonix, the Rat King (Commander) - Expensive

Karumonix, the Rat King
Rank #393
662decks
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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Enchantments
Planeswalkers
Utility Lands
Mana Artifacts
Lands
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Decorum Dissertation
3.7%inclusion4 decks108 decks
-2%synergy
Grave Researcher
2.5%inclusion3 decks121 decks
-6%synergy
Emeritus of Woe
1.9%inclusion2 decks107 decks
-6%synergy
Arnyn, Deathbloom Botanist
1.9%inclusion2 decks107 decks
-1%synergy
Rabid Attack
0.9%inclusion1 decks107 decks
0%synergy
High Synergy Cards
Marrow-Gnawer
93%inclusion616 decks662 decks
90%synergy
Piper of the Swarm
83%inclusion547 decks662 decks
76%synergy
Ashcoat of the Shadow Swarm
75%inclusion498 decks662 decks
72%synergy
Swarmyard
75%inclusion496 decks662 decks
69%synergy
Pack Rat
73%inclusion485 decks662 decks
67%synergy
Rat Colony
69%inclusion454 decks662 decks
63%synergy
Ogre Slumlord
69%inclusion456 decks662 decks
59%synergy
Lord Skitter, Sewer King
66%inclusion438 decks662 decks
58%synergy
Blightbelly Rat
61%inclusion401 decks662 decks
57%synergy
Ichor Rats
60%inclusion394 decks662 decks
57%synergy
Top Cards
Jet Medallion
80%inclusion532 decks662 decks
18%synergy
Dark Ritual
78%inclusion515 decks662 decks
11%synergy
Bontu's Monument
59%inclusion391 decks662 decks
31%synergy
Herald's Horn
52%inclusion344 decks662 decks
46%synergy
Skullclamp
52%inclusion343 decks662 decks
30%synergy
Deadly Rollick
50%inclusion330 decks662 decks
25%synergy
Vraska's Fall
46%inclusion306 decks662 decks
43%synergy
Infectious Inquiry
46%inclusion304 decks662 decks
43%synergy
Cover of Darkness
45%inclusion296 decks662 decks
42%synergy
Ratcatcher
44%inclusion290 decks662 decks
40%synergy
Game Changers
Demonic Tutor
76%inclusion506 decks662 decks
49%synergy
Vampiric Tutor
65%inclusion431 decks662 decks
44%synergy
Bolas's Citadel
38%inclusion252 decks662 decks
10%synergy
Imperial Seal
24%inclusion159 decks662 decks
17%synergy
Ancient Tomb
19%inclusion127 decks662 decks
8%synergy
Necropotence
18%inclusion119 decks662 decks
3%synergy
The One Ring
12%inclusion79 decks662 decks
3%synergy
Chrome Mox
11%inclusion72 decks662 decks
5%synergy
Mana Vault
9.2%inclusion61 decks662 decks
3%synergy
Opposition Agent
7.1%inclusion47 decks662 decks
-2%synergy
Creatures
Rat King, Verminister
42%inclusion99 decks236 decks
39%synergy
Crypt Rats
42%inclusion276 decks662 decks
37%synergy
Septic Rats
37%inclusion245 decks662 decks
35%synergy
Typhoid Rats
37%inclusion244 decks662 decks
33%synergy
Tangled Colony
37%inclusion243 decks662 decks
34%synergy
Ayara, First of Locthwain
37%inclusion242 decks662 decks
11%synergy
Rancid Rats
35%inclusion229 decks662 decks
32%synergy
Crypt Ghast
34%inclusion228 decks662 decks
-13%synergy
Ink-Eyes, Servant of Oni
33%inclusion217 decks662 decks
30%synergy
Lord Skitter's Butcher
32%inclusion215 decks662 decks
29%synergy
Gnat Miser
32%inclusion215 decks662 decks
30%synergy
Species Specialist
29%inclusion189 decks662 decks
25%synergy
Nashi, Moon Sage's Scion
28%inclusion185 decks662 decks
24%synergy
Burglar Rat
27%inclusion176 decks662 decks
16%synergy
Persistent Marshstalker
26%inclusion170 decks648 decks
23%synergy
Stronghold Rats
26%inclusion172 decks662 decks
22%synergy
Changeling Outcast
26%inclusion171 decks662 decks
21%synergy
Swarm of Rats
25%inclusion167 decks662 decks
23%synergy
Valley Rotcaller
25%inclusion160 decks649 decks
22%synergy
Rat King, Pale Piper
24%inclusion48 decks197 decks
20%synergy
Voracious Vermin
23%inclusion150 decks662 decks
20%synergy
Yawgmoth, Thran Physician
23%inclusion149 decks662 decks
13%synergy
Wave of Rats
22%inclusion147 decks662 decks
20%synergy
Gray Merchant of Asphodel
21%inclusion137 decks662 decks
-30%synergy
Throat Slitter
18%inclusion119 decks662 decks
16%synergy
Relentless Rats
18%inclusion118 decks662 decks
16%synergy
Chittering Witch
17%inclusion113 decks662 decks
13%synergy
Locust Miser
16%inclusion106 decks662 decks
14%synergy
Nezumi Informant
14%inclusion95 decks662 decks
8%synergy
Filth
14%inclusion92 decks662 decks
11%synergy
Chittering Skitterling
14%inclusion91 decks662 decks
13%synergy
Roaming Throne
13%inclusion89 decks662 decks
11%synergy
Pestilence Rats
13%inclusion85 decks662 decks
11%synergy
Nezumi Graverobber
12%inclusion79 decks662 decks
11%synergy
Nezumi Prowler
12%inclusion79 decks662 decks
11%synergy
Engine Rat
12%inclusion64 decks542 decks
10%synergy
Undercity Dire Rat
11%inclusion51 decks462 decks
9%synergy
Old Flitterfang
10%inclusion67 decks662 decks
9%synergy
Blood Artist
10%inclusion63 decks662 decks
-22%synergy
Gnawing Vermin
9.4%inclusion62 decks662 decks
8%synergy
Ruin Rat
9.2%inclusion61 decks662 decks
8%synergy
Zodiac Rat
8.8%inclusion58 decks662 decks
9%synergy
Adaptive Automaton
8.5%inclusion56 decks662 decks
7%synergy
Rotting Rats
8.3%inclusion55 decks662 decks
5%synergy
Nezumi Cutthroat
7.9%inclusion52 decks662 decks
7%synergy
Drainpipe Vermin
7.3%inclusion48 decks662 decks
6%synergy
Ravenous Rats
7.1%inclusion47 decks662 decks
5%synergy
Zulaport Cutthroat
7.1%inclusion47 decks662 decks
-16%synergy
Twisted Sewer-Witch
7.1%inclusion47 decks662 decks
6%synergy
Razortooth Rats
6.3%inclusion42 decks662 decks
6%synergy
Instants
Whisper of the Dross
27%inclusion178 decks662 decks
24%synergy
Defile
26%inclusion172 decks662 decks
-10%synergy
Village Rites
26%inclusion171 decks662 decks
0%synergy
Go for the Throat
23%inclusion149 decks662 decks
-0%synergy
Malakir Rebirth
21%inclusion142 decks662 decks
-2%synergy
Deadly Dispute
20%inclusion133 decks662 decks
-6%synergy
Tainted Strike
20%inclusion132 decks662 decks
17%synergy
Cabal Ritual
19%inclusion127 decks662 decks
1%synergy
Culling the Weak
18%inclusion121 decks662 decks
1%synergy
Withering Torment
18%inclusion109 decks621 decks
-14%synergy
Infernal Grasp
17%inclusion110 decks662 decks
-9%synergy
Imp's Mischief
15%inclusion101 decks662 decks
-10%synergy
Grim Affliction
15%inclusion100 decks662 decks
13%synergy
Fell the Profane
14%inclusion95 decks662 decks
-5%synergy
Corrupted Conviction
13%inclusion84 decks662 decks
0%synergy
Tragic Slip
12%inclusion81 decks662 decks
-7%synergy
Snuff Out
12%inclusion78 decks662 decks
-2%synergy
Sudden Spoiling
11%inclusion72 decks662 decks
2%synergy
Rat Out
8.8%inclusion58 decks662 decks
7%synergy
Murder
7.6%inclusion50 decks662 decks
-2%synergy
Entomb
7.4%inclusion49 decks662 decks
-5%synergy
Darkness
6.8%inclusion45 decks662 decks
-3%synergy
Foul-Tongue Shriek
6.6%inclusion44 decks662 decks
5%synergy
Anoint with Affliction
6.5%inclusion43 decks662 decks
6%synergy
Dismember
5.6%inclusion37 decks662 decks
-5%synergy
Hero's Downfall
5.4%inclusion36 decks662 decks
-1%synergy
Consuming Corruption
5.1%inclusion34 decks662 decks
-11%synergy
Sorceries
Phyresis Outbreak
41%inclusion269 decks662 decks
39%synergy
Feed the Swarm
38%inclusion251 decks662 decks
-12%synergy
Drown in Ichor
36%inclusion238 decks662 decks
32%synergy
Kindred Dominance
35%inclusion231 decks662 decks
30%synergy
Diabolic Intent
33%inclusion216 decks662 decks
18%synergy
Patriarch's Bidding
32%inclusion213 decks662 decks
28%synergy
Toxic Deluge
29%inclusion195 decks662 decks
-7%synergy
Damnation
26%inclusion169 decks662 decks
5%synergy
Grim Tutor
26%inclusion169 decks662 decks
14%synergy
Reanimate
25%inclusion165 decks662 decks
-15%synergy
Sign in Blood
22%inclusion145 decks662 decks
-13%synergy
Revenge of the Rats
22%inclusion128 decks587 decks
19%synergy
Bloodline Bidding
21%inclusion54 decks258 decks
17%synergy
Swarmyard Massacre
19%inclusion121 decks642 decks
16%synergy
Plague of Vermin
18%inclusion117 decks662 decks
15%synergy
Night's Whisper
17%inclusion115 decks662 decks
-7%synergy
Echoing Return
15%inclusion101 decks662 decks
12%synergy
Crippling Fear
14%inclusion94 decks662 decks
11%synergy
Diabolic Tutor
12%inclusion78 decks662 decks
-2%synergy
Victimize
12%inclusion77 decks662 decks
-16%synergy
Torment of Hailfire
11%inclusion73 decks662 decks
-4%synergy
Pact of the Serpent
11%inclusion71 decks662 decks
9%synergy
Bubbling Muck
10%inclusion67 decks662 decks
-5%synergy
Living Death
10%inclusion67 decks662 decks
-0%synergy
Read the Bones
9.2%inclusion61 decks662 decks
-7%synergy
Vat Emergence
9.1%inclusion60 decks662 decks
8%synergy
Agadeem's Awakening
8.3%inclusion55 decks662 decks
1%synergy
Unearth
7.9%inclusion52 decks662 decks
-1%synergy
Insatiable Avarice
7.6%inclusion50 decks662 decks
-4%synergy
Spread the Sickness
6.9%inclusion46 decks662 decks
6%synergy
Exsanguinate
6.5%inclusion43 decks662 decks
-18%synergy
Secret Salvage
6.3%inclusion42 decks662 decks
5%synergy
Gruesome Fate
5.7%inclusion38 decks662 decks
4%synergy
Forever Young
5.3%inclusion35 decks662 decks
4%synergy
Utility Artifacts
Thrumming Stone
44%inclusion289 decks662 decks
40%synergy
Vanquisher's Banner
35%inclusion231 decks662 decks
31%synergy
Lightning Greaves
33%inclusion217 decks662 decks
-1%synergy
Chronicle of Victory
23%inclusion59 decks258 decks
20%synergy
Whip of Erebos
21%inclusion137 decks662 decks
10%synergy
Coat of Arms
20%inclusion133 decks662 decks
17%synergy
Contagion Engine
18%inclusion117 decks662 decks
16%synergy
Ashnod's Altar
18%inclusion116 decks662 decks
-2%synergy
Thornbite Staff
16%inclusion104 decks662 decks
13%synergy
Swiftfoot Boots
15%inclusion102 decks662 decks
-16%synergy
Door of Destinies
15%inclusion99 decks662 decks
13%synergy
Contagion Clasp
15%inclusion96 decks662 decks
12%synergy
Phyrexian Altar
15%inclusion96 decks662 decks
1%synergy
Eldrazi Monument
13%inclusion87 decks662 decks
11%synergy
The Darkness Crystal
12%inclusion57 decks464 decks
-8%synergy
Banner of Kinship
11%inclusion64 decks588 decks
9%synergy
Sensei's Divining Top
10%inclusion69 decks662 decks
2%synergy
Akroma's Memorial
10%inclusion63 decks662 decks
9%synergy
Sword of Truth and Justice
9.2%inclusion61 decks662 decks
8%synergy
Grafted Exoskeleton
8.9%inclusion59 decks662 decks
8%synergy
Gathering Stone
8.1%inclusion21 decks258 decks
7%synergy
Expedition Map
7.7%inclusion51 decks662 decks
-4%synergy
Urza's Incubator
7.7%inclusion51 decks662 decks
6%synergy
Aetherflux Reservoir
7.3%inclusion48 decks662 decks
-2%synergy
Enchantments
Phyrexian Arena
43%inclusion283 decks662 decks
3%synergy
Grave Pact
39%inclusion257 decks662 decks
19%synergy
Black Market Connections
39%inclusion257 decks662 decks
15%synergy
Black Market
22%inclusion148 decks662 decks
2%synergy
The Meathook Massacre
21%inclusion136 decks662 decks
3%synergy
Necrogen Communion
20%inclusion130 decks662 decks
18%synergy
Dictate of Erebos
18%inclusion120 decks662 decks
7%synergy
Haunted One
17%inclusion113 decks662 decks
14%synergy
Oversold Cemetery
15%inclusion98 decks662 decks
10%synergy
Phyresis
12%inclusion80 decks662 decks
10%synergy
Bad Moon
11%inclusion71 decks662 decks
8%synergy
Exquisite Blood
10%inclusion65 decks662 decks
-3%synergy
Phyrexian Reclamation
8.6%inclusion57 decks662 decks
-1%synergy
Contamination
6.6%inclusion44 decks662 decks
3%synergy
Dark Prophecy
6.5%inclusion43 decks662 decks
3%synergy
Sanguine Bond
6.3%inclusion42 decks662 decks
-5%synergy
Tribute to Horobi
5.3%inclusion35 decks662 decks
4%synergy
No Mercy
5.3%inclusion35 decks662 decks
-2%synergy
Planeswalkers
Vraska, Betrayal's Sting
34%inclusion223 decks662 decks
31%synergy
Liliana of the Dark Realms
13%inclusion89 decks662 decks
-0%synergy
Utility Lands
Cabal Coffers
89%inclusion592 decks662 decks
35%synergy
Urborg, Tomb of Yawgmoth
77%inclusion512 decks662 decks
40%synergy
Nykthos, Shrine to Nyx
67%inclusion441 decks662 decks
37%synergy
Bojuka Bog
52%inclusion341 decks662 decks
5%synergy
Phyrexian Tower
50%inclusion331 decks662 decks
24%synergy
Karn's Bastion
47%inclusion309 decks662 decks
43%synergy
Cabal Stronghold
46%inclusion305 decks662 decks
12%synergy
Three Tree City
45%inclusion293 decks649 decks
40%synergy
Reliquary Tower
38%inclusion249 decks662 decks
8%synergy
Rogue's Passage
31%inclusion207 decks662 decks
12%synergy
Mudflat Village
30%inclusion193 decks654 decks
27%synergy
Shizo, Death's Storehouse
29%inclusion195 decks662 decks
19%synergy
Witch's Cottage
29%inclusion191 decks662 decks
4%synergy
Castle Locthwain
27%inclusion182 decks662 decks
11%synergy
Takenuma, Abandoned Mire
25%inclusion165 decks662 decks
9%synergy
War Room
22%inclusion147 decks662 decks
6%synergy
Crypt of Agadeem
20%inclusion133 decks662 decks
9%synergy
Mortuary Mire
17%inclusion111 decks662 decks
4%synergy
Volrath's Stronghold
12%inclusion79 decks662 decks
8%synergy
Secret Tunnel
12%inclusion38 decks327 decks
10%synergy
Inkmoth Nexus
11%inclusion72 decks662 decks
10%synergy
Urza's Saga
10%inclusion63 decks662 decks
2%synergy
Minas Morgul, Dark Fortress
8.9%inclusion59 decks662 decks
6%synergy
Access Tunnel
8.6%inclusion57 decks662 decks
6%synergy
Lake of the Dead
7.6%inclusion50 decks662 decks
2%synergy
The Black Gate
7.3%inclusion48 decks662 decks
4%synergy
Mutavault
6.9%inclusion46 decks662 decks
6%synergy
Command Beacon
6.9%inclusion46 decks662 decks
-1%synergy
Temple of the False God
5.6%inclusion37 decks662 decks
-2%synergy
Deserted Temple
5.4%inclusion36 decks662 decks
1%synergy
Vesuva
5.3%inclusion35 decks662 decks
3%synergy
Mana Artifacts
Sol Ring
91%inclusion601 decks662 decks
5%synergy
Arcane Signet
56%inclusion370 decks662 decks
-6%synergy
Glistening Sphere
33%inclusion220 decks662 decks
32%synergy
The Soul Stone
28%inclusion114 decks402 decks
13%synergy
Patchwork Banner
21%inclusion136 decks646 decks
17%synergy
Staff of Compleation
19%inclusion125 decks662 decks
17%synergy
Thought Vessel
14%inclusion91 decks662 decks
-11%synergy
Throne of Eldraine
11%inclusion76 decks662 decks
2%synergy
Mind Stone
10%inclusion69 decks662 decks
-18%synergy
Charcoal Diamond
10%inclusion68 decks662 decks
-12%synergy
Lotus Petal
10%inclusion63 decks662 decks
2%synergy
Caged Sun
8.9%inclusion59 decks662 decks
-2%synergy
Fellwar Stone
7.4%inclusion49 decks662 decks
-7%synergy
Gauntlet of Power
6.9%inclusion46 decks662 decks
4%synergy
Nyx Lotus
6.8%inclusion45 decks662 decks
1%synergy
Heraldic Banner
6.2%inclusion41 decks662 decks
1%synergy
Mox Diamond
6.2%inclusion41 decks662 decks
2%synergy
Mox Amber
5.4%inclusion36 decks662 decks
1%synergy
Lands
Swamp
90%inclusion595 decks662 decks
-5%synergy
Cavern of Souls
53%inclusion348 decks662 decks
46%synergy
Path of Ancestry
29%inclusion191 decks662 decks
24%synergy
Malakir Rebirth
21%inclusion142 decks662 decks
-2%synergy
Myriad Landscape
15%inclusion101 decks662 decks
-10%synergy
Fell the Profane
14%inclusion95 decks662 decks
-5%synergy
Command Tower
13%inclusion88 decks662 decks
8%synergy
Snow-Covered Swamp
12%inclusion81 decks662 decks
6%synergy
Polluted Delta
8.5%inclusion56 decks662 decks
5%synergy
Agadeem's Awakening
8.3%inclusion55 decks662 decks
1%synergy
Bloodstained Mire
8.2%inclusion54 decks662 decks
4%synergy
Verdant Catacombs
7.6%inclusion50 decks662 decks
4%synergy
Marsh Flats
6.9%inclusion46 decks662 decks
3%synergy
Big Apple, 3 a.m.
6.6%inclusion13 decks197 decks
5%synergy
Urza's Cave
6.5%inclusion43 decks662 decks
-2%synergy
Gemstone Caverns
5.7%inclusion38 decks662 decks
1%synergy
Evolving Wilds
5.3%inclusion35 decks662 decks
1%synergy
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