Karumonix, the Rat King (Commander) - Expensive Core

Karumonix, the Rat King
Rank #384
93decks
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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Rat King, Verminister
44%inclusion12 decks27 decks
41%synergy
Rat King, Pale Piper
35%inclusion8 decks23 decks
30%synergy
Big Apple, 3 a.m.
13%inclusion3 decks23 decks
11%synergy
Shredder's Technique
4.3%inclusion1 decks23 decks
1%synergy
Foot Chopper
4.3%inclusion1 decks23 decks
4%synergy
High Synergy Cards
Marrow-Gnawer
90%inclusion84 decks93 decks
87%synergy
Piper of the Swarm
85%inclusion79 decks93 decks
78%synergy
Swarmyard
81%inclusion75 decks93 decks
75%synergy
Ashcoat of the Shadow Swarm
70%inclusion65 decks93 decks
67%synergy
Pack Rat
72%inclusion67 decks93 decks
66%synergy
Ogre Slumlord
71%inclusion66 decks93 decks
61%synergy
Lord Skitter, Sewer King
69%inclusion64 decks93 decks
60%synergy
Rat Colony
65%inclusion60 decks93 decks
59%synergy
Blightbelly Rat
60%inclusion56 decks93 decks
57%synergy
Herald's Horn
58%inclusion54 decks93 decks
52%synergy
Top Cards
Jet Medallion
86%inclusion80 decks93 decks
24%synergy
Bontu's Monument
65%inclusion60 decks93 decks
36%synergy
Dark Ritual
56%inclusion52 decks93 decks
-11%synergy
Ichor Rats
55%inclusion51 decks93 decks
52%synergy
Cover of Darkness
53%inclusion49 decks93 decks
50%synergy
Phyresis Outbreak
52%inclusion48 decks93 decks
50%synergy
Vraska's Fall
52%inclusion48 decks93 decks
48%synergy
Skullclamp
52%inclusion48 decks93 decks
30%synergy
Phyrexian Arena
51%inclusion47 decks93 decks
11%synergy
Infectious Inquiry
49%inclusion46 decks93 decks
47%synergy
Creatures
Lord Skitter's Butcher
47%inclusion44 decks93 decks
44%synergy
Tangled Colony
44%inclusion41 decks93 decks
41%synergy
Ratcatcher
44%inclusion41 decks93 decks
41%synergy
Crypt Rats
42%inclusion39 decks93 decks
37%synergy
Species Specialist
39%inclusion36 decks93 decks
35%synergy
Septic Rats
37%inclusion34 decks93 decks
35%synergy
Persistent Marshstalker
35%inclusion30 decks85 decks
32%synergy
Typhoid Rats
34%inclusion32 decks93 decks
31%synergy
Ink-Eyes, Servant of Oni
33%inclusion31 decks93 decks
30%synergy
Ayara, First of Locthwain
32%inclusion30 decks93 decks
7%synergy
Crypt Ghast
32%inclusion30 decks93 decks
-15%synergy
Voracious Vermin
29%inclusion27 decks93 decks
26%synergy
Rancid Rats
28%inclusion26 decks93 decks
25%synergy
Burglar Rat
26%inclusion24 decks93 decks
15%synergy
Nashi, Moon Sage's Scion
26%inclusion24 decks93 decks
22%synergy
Gnat Miser
26%inclusion24 decks93 decks
23%synergy
Changeling Outcast
24%inclusion22 decks93 decks
19%synergy
Relentless Rats
22%inclusion20 decks93 decks
20%synergy
Yawgmoth, Thran Physician
22%inclusion20 decks93 decks
11%synergy
Wave of Rats
22%inclusion20 decks93 decks
20%synergy
Filth
20%inclusion19 decks93 decks
18%synergy
Stronghold Rats
20%inclusion19 decks93 decks
17%synergy
Valley Rotcaller
20%inclusion17 decks85 decks
17%synergy
Swarm of Rats
18%inclusion17 decks93 decks
16%synergy
Engine Rat
17%inclusion11 decks63 decks
16%synergy
Throat Slitter
16%inclusion15 decks93 decks
14%synergy
Chittering Skitterling
14%inclusion13 decks93 decks
13%synergy
Roaming Throne
14%inclusion13 decks93 decks
11%synergy
Nezumi Informant
14%inclusion13 decks93 decks
7%synergy
Gray Merchant of Asphodel
13%inclusion12 decks93 decks
-38%synergy
Zodiac Rat
13%inclusion12 decks93 decks
13%synergy
Gnawing Vermin
12%inclusion11 decks93 decks
10%synergy
Locust Miser
12%inclusion11 decks93 decks
10%synergy
Twisted Sewer-Witch
12%inclusion11 decks93 decks
10%synergy
Nezumi Prowler
12%inclusion11 decks93 decks
10%synergy
Undercity Dire Rat
12%inclusion6 decks52 decks
10%synergy
Nezumi Graverobber
11%inclusion10 decks93 decks
9%synergy
Nezumi Cutthroat
11%inclusion10 decks93 decks
10%synergy
Drainpipe Vermin
11%inclusion10 decks93 decks
9%synergy
Rotting Rats
10%inclusion9 decks93 decks
6%synergy
Pestilence Rats
10%inclusion9 decks93 decks
8%synergy
Chittering Witch
8.6%inclusion8 decks93 decks
4%synergy
Ruthless Radrat
7.5%inclusion7 decks93 decks
7%synergy
Refurbished Familiar
6.7%inclusion6 decks89 decks
5%synergy
Mirkwood Bats
6.5%inclusion6 decks93 decks
-2%synergy
Old Flitterfang
6.5%inclusion6 decks93 decks
5%synergy
Zulaport Cutthroat
6.5%inclusion6 decks93 decks
-17%synergy
Patron of the Nezumi
5.4%inclusion5 decks93 decks
5%synergy
Skullsnatcher
5.4%inclusion5 decks93 decks
5%synergy
Grim Haruspex
5.4%inclusion5 decks93 decks
-4%synergy
Instants
Deadly Rollick
32%inclusion30 decks93 decks
8%synergy
Village Rites
29%inclusion27 decks93 decks
4%synergy
Defile
29%inclusion27 decks93 decks
-7%synergy
Whisper of the Dross
28%inclusion26 decks93 decks
25%synergy
Malakir Rebirth
26%inclusion24 decks93 decks
3%synergy
Fell the Profane
23%inclusion21 decks91 decks
4%synergy
Tainted Strike
22%inclusion20 decks93 decks
18%synergy
Grim Affliction
20%inclusion19 decks93 decks
18%synergy
Go for the Throat
18%inclusion17 decks93 decks
-5%synergy
Withering Torment
18%inclusion13 decks74 decks
-14%synergy
Infernal Grasp
16%inclusion15 decks93 decks
-9%synergy
Consuming Corruption
16%inclusion14 decks89 decks
0%synergy
Deadly Dispute
15%inclusion14 decks93 decks
-11%synergy
Foul-Tongue Shriek
15%inclusion14 decks93 decks
13%synergy
Tragic Slip
14%inclusion13 decks93 decks
-6%synergy
Sudden Spoiling
13%inclusion12 decks93 decks
4%synergy
Anoint with Affliction
12%inclusion11 decks93 decks
11%synergy
Rat Out
11%inclusion10 decks93 decks
9%synergy
Corrupted Conviction
11%inclusion10 decks93 decks
-2%synergy
Bitter Triumph
10%inclusion9 decks93 decks
0%synergy
Snuff Out
8.6%inclusion8 decks93 decks
-4%synergy
Darkness
8.6%inclusion8 decks93 decks
-1%synergy
Imp's Mischief
7.5%inclusion7 decks93 decks
-17%synergy
Feign Death
7.5%inclusion7 decks93 decks
-1%synergy
Hero's Downfall
6.5%inclusion6 decks93 decks
0%synergy
Gravepurge
6.5%inclusion6 decks93 decks
5%synergy
Sheoldred's Edict
5.4%inclusion5 decks93 decks
-9%synergy
Not Dead After All
5.4%inclusion5 decks93 decks
-6%synergy
Sorceries
Feed the Swarm
44%inclusion41 decks93 decks
-6%synergy
Patriarch's Bidding
41%inclusion38 decks93 decks
37%synergy
Drown in Ichor
40%inclusion37 decks93 decks
36%synergy
Kindred Dominance
39%inclusion36 decks93 decks
34%synergy
Swarmyard Massacre
37%inclusion31 decks83 decks
35%synergy
Sign in Blood
31%inclusion29 decks93 decks
-4%synergy
Toxic Deluge
29%inclusion27 decks93 decks
-8%synergy
Bloodline Bidding
29%inclusion8 decks28 decks
24%synergy
Echoing Return
24%inclusion22 decks93 decks
21%synergy
Crippling Fear
22%inclusion20 decks93 decks
18%synergy
Plague of Vermin
22%inclusion20 decks93 decks
19%synergy
Night's Whisper
19%inclusion18 decks93 decks
-5%synergy
Revenge of the Rats
19%inclusion13 decks70 decks
16%synergy
Damnation
18%inclusion17 decks93 decks
-2%synergy
Pact of the Serpent
15%inclusion14 decks93 decks
13%synergy
Diabolic Intent
14%inclusion13 decks93 decks
-1%synergy
Reanimate
14%inclusion13 decks93 decks
-26%synergy
Vat Emergence
13%inclusion12 decks93 decks
11%synergy
Unearth
12%inclusion11 decks93 decks
3%synergy
Agadeem's Awakening
12%inclusion11 decks93 decks
5%synergy
Haunting Voyage
11%inclusion10 decks93 decks
10%synergy
Exsanguinate
10%inclusion9 decks93 decks
-15%synergy
Insatiable Avarice
10%inclusion9 decks93 decks
-2%synergy
Read the Bones
8.6%inclusion8 decks93 decks
-8%synergy
Living Death
8.6%inclusion8 decks93 decks
-2%synergy
Diabolic Tutor
7.5%inclusion7 decks93 decks
-7%synergy
Forever Young
6.5%inclusion6 decks93 decks
5%synergy
Mutilate
6.5%inclusion6 decks93 decks
-11%synergy
Geth's Summons
6.5%inclusion6 decks93 decks
6%synergy
Blasphemous Edict
5.7%inclusion4 decks70 decks
-11%synergy
Feed the Infection
5.4%inclusion5 decks93 decks
5%synergy
Torment of Hailfire
5.4%inclusion5 decks93 decks
-10%synergy
Syphon Mind
5.4%inclusion5 decks93 decks
-7%synergy
Utility Artifacts
Thrumming Stone
47%inclusion44 decks93 decks
43%synergy
Vanquisher's Banner
40%inclusion37 decks93 decks
36%synergy
Contagion Engine
27%inclusion25 decks93 decks
25%synergy
Chronicle of Victory
25%inclusion7 decks28 decks
22%synergy
Lightning Greaves
24%inclusion22 decks93 decks
-10%synergy
Whip of Erebos
23%inclusion21 decks93 decks
12%synergy
Door of Destinies
20%inclusion19 decks93 decks
18%synergy
Contagion Clasp
19%inclusion18 decks93 decks
17%synergy
Coat of Arms
19%inclusion18 decks93 decks
17%synergy
Eldrazi Monument
17%inclusion16 decks93 decks
16%synergy
Banner of Kinship
14%inclusion10 decks70 decks
12%synergy
Swiftfoot Boots
13%inclusion12 decks93 decks
-19%synergy
Akroma's Memorial
12%inclusion11 decks93 decks
11%synergy
Ashnod's Altar
11%inclusion10 decks93 decks
-9%synergy
Sword of Truth and Justice
10%inclusion9 decks93 decks
9%synergy
Wayfarer's Bauble
8.6%inclusion8 decks93 decks
-7%synergy
Expedition Map
7.5%inclusion7 decks93 decks
-4%synergy
Gathering Stone
7.1%inclusion2 decks28 decks
6%synergy
Grafted Exoskeleton
6.5%inclusion6 decks93 decks
5%synergy
The Darkness Crystal
5.8%inclusion3 decks52 decks
-14%synergy
Sword of Hearth and Home
5.4%inclusion5 decks93 decks
4%synergy
Urza's Incubator
5.4%inclusion5 decks93 decks
3%synergy
Whispersilk Cloak
5.4%inclusion5 decks93 decks
-1%synergy
Enchantments
Black Market Connections
39%inclusion36 decks93 decks
15%synergy
Haunted One
30%inclusion28 decks93 decks
27%synergy
Grave Pact
26%inclusion24 decks93 decks
6%synergy
Necrogen Communion
20%inclusion19 decks93 decks
19%synergy
Black Market
16%inclusion15 decks93 decks
-5%synergy
Bad Moon
16%inclusion15 decks93 decks
13%synergy
Phyresis
15%inclusion14 decks93 decks
13%synergy
Oversold Cemetery
15%inclusion14 decks93 decks
10%synergy
The Meathook Massacre
14%inclusion13 decks93 decks
-3%synergy
Vampiric Rites
11%inclusion10 decks93 decks
5%synergy
Dictate of Erebos
11%inclusion10 decks93 decks
0%synergy
Dark Prophecy
8.6%inclusion8 decks93 decks
5%synergy
Glistening Oil
7.5%inclusion7 decks93 decks
7%synergy
Phyrexian Reclamation
7.5%inclusion7 decks93 decks
-2%synergy
Tribute to Horobi
5.4%inclusion5 decks93 decks
4%synergy
Planeswalkers
Vraska, Betrayal's Sting
29%inclusion27 decks93 decks
26%synergy
Liliana of the Dark Realms
15%inclusion14 decks93 decks
1%synergy
Utility Lands
Cabal Coffers
85%inclusion79 decks93 decks
30%synergy
Urborg, Tomb of Yawgmoth
72%inclusion67 decks93 decks
35%synergy
Nykthos, Shrine to Nyx
60%inclusion56 decks93 decks
30%synergy
Cabal Stronghold
55%inclusion51 decks93 decks
20%synergy
Three Tree City
49%inclusion42 decks85 decks
45%synergy
Bojuka Bog
42%inclusion39 decks93 decks
-5%synergy
Karn's Bastion
42%inclusion39 decks93 decks
38%synergy
Mudflat Village
39%inclusion33 decks85 decks
36%synergy
Phyrexian Tower
35%inclusion33 decks93 decks
10%synergy
Rogue's Passage
34%inclusion32 decks93 decks
15%synergy
Reliquary Tower
29%inclusion27 decks93 decks
-1%synergy
Shizo, Death's Storehouse
27%inclusion25 decks93 decks
17%synergy
Crypt of Agadeem
26%inclusion24 decks93 decks
15%synergy
Takenuma, Abandoned Mire
23%inclusion21 decks93 decks
7%synergy
Castle Locthwain
20%inclusion19 decks93 decks
3%synergy
Secret Tunnel
18%inclusion7 decks39 decks
17%synergy
Minas Morgul, Dark Fortress
16%inclusion15 decks93 decks
13%synergy
Witch's Cottage
16%inclusion15 decks93 decks
-8%synergy
Mortuary Mire
15%inclusion14 decks93 decks
2%synergy
War Room
15%inclusion14 decks93 decks
-1%synergy
Mutavault
13%inclusion12 decks93 decks
12%synergy
Midgar, City of Mako
12%inclusion6 decks52 decks
0%synergy
Susur Secundi, Void Altar
11%inclusion5 decks45 decks
4%synergy
Inkmoth Nexus
8.6%inclusion8 decks93 decks
8%synergy
Temple of the False God
8.6%inclusion8 decks93 decks
1%synergy
Volrath's Stronghold
8.6%inclusion8 decks93 decks
5%synergy
Vesuva
7.5%inclusion7 decks93 decks
5%synergy
Access Tunnel
7.5%inclusion7 decks93 decks
5%synergy
The Black Gate
6.5%inclusion6 decks93 decks
3%synergy
High Market
5.4%inclusion5 decks93 decks
-2%synergy
Deserted Temple
5.4%inclusion5 decks93 decks
1%synergy
Mana Artifacts
Sol Ring
73%inclusion68 decks93 decks
-13%synergy
Glistening Sphere
44%inclusion41 decks93 decks
43%synergy
Arcane Signet
43%inclusion40 decks93 decks
-19%synergy
Patchwork Banner
33%inclusion28 decks85 decks
29%synergy
The Soul Stone
21%inclusion9 decks43 decks
7%synergy
Staff of Compleation
19%inclusion18 decks93 decks
18%synergy
Charcoal Diamond
12%inclusion11 decks93 decks
-11%synergy
Heraldic Banner
10%inclusion9 decks93 decks
4%synergy
Caged Sun
7.5%inclusion7 decks93 decks
-4%synergy
Gauntlet of Power
7.5%inclusion7 decks93 decks
4%synergy
Throne of Eldraine
7.5%inclusion7 decks93 decks
-2%synergy
Thought Vessel
7.5%inclusion7 decks93 decks
-18%synergy
Mind Stone
7.5%inclusion7 decks93 decks
-22%synergy
Lands
Swamp
96%inclusion89 decks93 decks
1%synergy
Cavern of Souls
48%inclusion45 decks93 decks
42%synergy
Path of Ancestry
33%inclusion31 decks93 decks
28%synergy
Malakir Rebirth
26%inclusion24 decks93 decks
3%synergy
Fell the Profane
23%inclusion21 decks91 decks
4%synergy
Myriad Landscape
19%inclusion18 decks93 decks
-6%synergy
Urza's Cave
12%inclusion11 decks92 decks
4%synergy
Agadeem's Awakening
12%inclusion11 decks93 decks
5%synergy
Command Tower
10%inclusion9 decks93 decks
4%synergy
Verdant Catacombs
8.6%inclusion8 decks93 decks
5%synergy
Polluted Delta
8.6%inclusion8 decks93 decks
5%synergy
Bloodstained Mire
7.5%inclusion7 decks93 decks
4%synergy
Snow-Covered Swamp
6.5%inclusion6 decks93 decks
0%synergy
Marsh Flats
6.5%inclusion6 decks93 decks
3%synergy
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