Karumonix, the Rat King (Commander) - Core Infect

Karumonix, the Rat King
Rank #381
110decks
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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Decorum Dissertation
9.1%inclusion1 decks11 decks
4%synergy
High Synergy Cards
Piper of the Swarm
90%inclusion99 decks110 decks
83%synergy
Blightbelly Rat
86%inclusion95 decks110 decks
83%synergy
Infectious Inquiry
79%inclusion87 decks110 decks
76%synergy
Ogre Slumlord
83%inclusion91 decks110 decks
73%synergy
Typhoid Rats
75%inclusion83 decks110 decks
72%synergy
Pack Rat
76%inclusion84 decks110 decks
70%synergy
Ichor Rats
72%inclusion79 decks110 decks
69%synergy
Vraska's Fall
70%inclusion77 decks110 decks
67%synergy
Rancid Rats
69%inclusion76 decks110 decks
67%synergy
Marrow-Gnawer
69%inclusion76 decks110 decks
66%synergy
Top Cards
Lord Skitter, Sewer King
72%inclusion79 decks110 decks
63%synergy
Lord Skitter's Butcher
66%inclusion73 decks110 decks
63%synergy
Drown in Ichor
66%inclusion73 decks110 decks
63%synergy
Septic Rats
61%inclusion67 decks110 decks
59%synergy
Tangled Colony
60%inclusion66 decks110 decks
57%synergy
Whisper of the Dross
58%inclusion64 decks110 decks
55%synergy
Crypt Rats
57%inclusion63 decks110 decks
53%synergy
Voracious Vermin
55%inclusion61 decks110 decks
52%synergy
Dark Ritual
55%inclusion60 decks110 decks
-12%synergy
Phyresis Outbreak
53%inclusion58 decks110 decks
51%synergy
Creatures
Stronghold Rats
53%inclusion58 decks110 decks
49%synergy
Burglar Rat
52%inclusion57 decks110 decks
41%synergy
Chittering Skitterling
49%inclusion54 decks110 decks
48%synergy
Gnat Miser
47%inclusion52 decks110 decks
44%synergy
Wave of Rats
46%inclusion51 decks110 decks
45%synergy
Persistent Marshstalker
46%inclusion48 decks105 decks
43%synergy
Changeling Outcast
44%inclusion48 decks110 decks
39%synergy
Ratcatcher
43%inclusion47 decks110 decks
39%synergy
Rat Colony
42%inclusion46 decks110 decks
36%synergy
Ruin Rat
38%inclusion42 decks110 decks
37%synergy
Nezumi Informant
37%inclusion41 decks110 decks
31%synergy
Nezumi Cutthroat
36%inclusion40 decks110 decks
36%synergy
Chittering Witch
35%inclusion38 decks110 decks
30%synergy
Ink-Eyes, Servant of Oni
34%inclusion37 decks110 decks
30%synergy
Twisted Sewer-Witch
34%inclusion37 decks110 decks
32%synergy
Ashcoat of the Shadow Swarm
34%inclusion37 decks110 decks
30%synergy
Pestilence Rats
34%inclusion37 decks110 decks
32%synergy
Nashi, Moon Sage's Scion
33%inclusion36 decks110 decks
29%synergy
Old Flitterfang
33%inclusion36 decks110 decks
31%synergy
Engine Rat
31%inclusion28 decks90 decks
29%synergy
Gnawing Vermin
31%inclusion34 decks110 decks
29%synergy
Nezumi Prowler
31%inclusion34 decks110 decks
29%synergy
Drainpipe Vermin
31%inclusion34 decks110 decks
30%synergy
Ravenous Rats
30%inclusion33 decks110 decks
28%synergy
Swarm of Rats
29%inclusion32 decks110 decks
27%synergy
Rotting Rats
23%inclusion25 decks110 decks
20%synergy
Ruthless Radrat
23%inclusion25 decks110 decks
22%synergy
Mukotai Ambusher
23%inclusion25 decks110 decks
22%synergy
Species Specialist
23%inclusion25 decks110 decks
19%synergy
Razortooth Rats
23%inclusion25 decks110 decks
22%synergy
Rat King, Pale Piper
23%inclusion7 decks31 decks
18%synergy
Locust Miser
22%inclusion24 decks110 decks
20%synergy
Undercity Dire Rat
20%inclusion15 decks74 decks
18%synergy
Skullsnatcher
20%inclusion22 decks110 decks
19%synergy
Throat Slitter
20%inclusion22 decks110 decks
18%synergy
Valley Rotcaller
20%inclusion21 decks105 decks
17%synergy
Ayara, First of Locthwain
19%inclusion21 decks110 decks
-7%synergy
Crypt Ghast
19%inclusion21 decks110 decks
-28%synergy
Nezumi Graverobber
18%inclusion20 decks110 decks
17%synergy
Okiba-Gang Shinobi
15%inclusion17 decks110 decks
15%synergy
Innocuous Rat
15%inclusion15 decks99 decks
14%synergy
Rat King, Verminister
15%inclusion6 decks41 decks
12%synergy
Relentless Rats
15%inclusion16 decks110 decks
13%synergy
Sinuous Vermin
15%inclusion16 decks110 decks
14%synergy
Refurbished Familiar
13%inclusion14 decks108 decks
11%synergy
Chittering Rats
13%inclusion14 decks110 decks
12%synergy
Bog Rats
13%inclusion14 decks110 decks
12%synergy
Gray Merchant of Asphodel
13%inclusion14 decks110 decks
-38%synergy
Nezumi Bladeblesser
12%inclusion13 decks110 decks
11%synergy
Daggerfang Duo
10%inclusion11 decks105 decks
10%synergy
Instants
Village Rites
46%inclusion51 decks110 decks
21%synergy
Defile
42%inclusion46 decks110 decks
6%synergy
Grim Affliction
34%inclusion37 decks110 decks
32%synergy
Rat Out
32%inclusion35 decks110 decks
30%synergy
Anoint with Affliction
30%inclusion33 decks110 decks
29%synergy
Corrupted Conviction
27%inclusion30 decks110 decks
15%synergy
Go for the Throat
25%inclusion27 decks110 decks
2%synergy
Deadly Dispute
22%inclusion24 decks110 decks
-4%synergy
Tainted Strike
21%inclusion23 decks110 decks
18%synergy
Virulent Wound
20%inclusion22 decks110 decks
20%synergy
Consuming Corruption
18%inclusion19 decks108 decks
2%synergy
Tragic Slip
17%inclusion19 decks110 decks
-2%synergy
Murder
15%inclusion17 decks110 decks
5%synergy
Raise the Draugr
15%inclusion16 decks110 decks
14%synergy
Infernal Grasp
15%inclusion16 decks110 decks
-11%synergy
Withering Torment
14%inclusion14 decks99 decks
-17%synergy
Fell the Profane
12%inclusion13 decks108 decks
-7%synergy
Deadly Rollick
12%inclusion13 decks110 decks
-13%synergy
Gravepurge
11%inclusion12 decks110 decks
9%synergy
Hero's Downfall
10%inclusion11 decks110 decks
3%synergy
Not Dead After All
10%inclusion11 decks110 decks
-1%synergy
Bitter Triumph
10%inclusion11 decks110 decks
0%synergy
Foul-Tongue Shriek
9.1%inclusion10 decks110 decks
7%synergy
Malakir Rebirth
9.1%inclusion10 decks110 decks
-14%synergy
Undying Malice
8.2%inclusion9 decks110 decks
-2%synergy
Baleful Mastery
8.2%inclusion9 decks110 decks
0%synergy
Feign Death
8.2%inclusion9 decks110 decks
0%synergy
Offer Immortality
7.3%inclusion8 decks110 decks
5%synergy
Sheoldred's Edict
6.4%inclusion7 decks110 decks
-8%synergy
Altar's Reap
6.4%inclusion7 decks110 decks
4%synergy
Sudden Spoiling
6.4%inclusion7 decks110 decks
-2%synergy
Dismember
6.4%inclusion7 decks110 decks
-4%synergy
Doom Blade
5.5%inclusion6 decks110 decks
-2%synergy
Cabal Ritual
5.5%inclusion6 decks110 decks
-13%synergy
Darkness
5.5%inclusion6 decks110 decks
-5%synergy
Death Denied
5.5%inclusion6 decks110 decks
5%synergy
Sorceries
Crippling Fear
45%inclusion50 decks110 decks
42%synergy
Feed the Swarm
44%inclusion48 decks110 decks
-7%synergy
Vat Emergence
37%inclusion41 decks110 decks
36%synergy
Sign in Blood
36%inclusion40 decks110 decks
1%synergy
Revenge of the Rats
35%inclusion34 decks96 decks
32%synergy
Read the Bones
28%inclusion31 decks110 decks
11%synergy
Unearth
27%inclusion30 decks110 decks
19%synergy
Patriarch's Bidding
25%inclusion27 decks110 decks
20%synergy
Night's Whisper
25%inclusion27 decks110 decks
0%synergy
Kindred Dominance
22%inclusion24 decks110 decks
17%synergy
Spread the Sickness
20%inclusion22 decks110 decks
19%synergy
Swarmyard Massacre
19%inclusion20 decks105 decks
17%synergy
Feed the Infection
18%inclusion20 decks110 decks
18%synergy
Diabolic Tutor
14%inclusion15 decks110 decks
-1%synergy
Victimize
14%inclusion15 decks110 decks
-13%synergy
Geth's Summons
13%inclusion14 decks110 decks
12%synergy
Caress of Phyrexia
12%inclusion13 decks110 decks
11%synergy
Plague of Vermin
12%inclusion13 decks110 decks
9%synergy
Bloodline Bidding
12%inclusion5 decks43 decks
7%synergy
Mutilate
11%inclusion12 decks110 decks
-6%synergy
Toxic Deluge
11%inclusion12 decks110 decks
-26%synergy
Reanimate
10%inclusion11 decks110 decks
-30%synergy
Lab Rats
10%inclusion11 decks110 decks
10%synergy
Syphon Mind
9.1%inclusion10 decks110 decks
-3%synergy
Return from Extinction
8.2%inclusion9 decks110 decks
8%synergy
Echoing Return
8.2%inclusion9 decks110 decks
5%synergy
Exsanguinate
8.2%inclusion9 decks110 decks
-16%synergy
Pact of the Serpent
8.2%inclusion9 decks110 decks
6%synergy
Haunting Voyage
7.3%inclusion8 decks110 decks
6%synergy
Forever Young
6.4%inclusion7 decks110 decks
5%synergy
Bubbling Muck
5.5%inclusion6 decks110 decks
-10%synergy
Corrupt
5.5%inclusion6 decks110 decks
3%synergy
Insatiable Avarice
5.5%inclusion6 decks110 decks
-6%synergy
Utility Artifacts
Jet Medallion
51%inclusion56 decks110 decks
-11%synergy
Bontu's Monument
47%inclusion52 decks110 decks
19%synergy
Herald's Horn
45%inclusion49 decks110 decks
39%synergy
Contagion Clasp
34%inclusion37 decks110 decks
31%synergy
Vanquisher's Banner
29%inclusion32 decks110 decks
25%synergy
Skullclamp
27%inclusion30 decks110 decks
5%synergy
Contagion Engine
21%inclusion23 decks110 decks
19%synergy
Prosthetic Injector
17%inclusion19 decks110 decks
17%synergy
Lightning Greaves
15%inclusion17 decks110 decks
-18%synergy
Swiftfoot Boots
15%inclusion17 decks110 decks
-16%synergy
Whip of Erebos
15%inclusion16 decks110 decks
4%synergy
Door of Destinies
15%inclusion16 decks110 decks
12%synergy
Thrumming Stone
15%inclusion16 decks110 decks
10%synergy
Whispersilk Cloak
12%inclusion13 decks110 decks
6%synergy
Chronicle of Victory
11%inclusion5 decks44 decks
8%synergy
Coat of Arms
11%inclusion12 decks110 decks
8%synergy
Grafted Exoskeleton
11%inclusion12 decks110 decks
10%synergy
Vat of Rebirth
9.1%inclusion10 decks110 decks
6%synergy
Icon of Ancestry
9.1%inclusion10 decks110 decks
8%synergy
Wayfarer's Bauble
7.3%inclusion8 decks110 decks
-8%synergy
Ashnod's Altar
5.5%inclusion6 decks110 decks
-14%synergy
Thieves' Tools
5.5%inclusion6 decks110 decks
4%synergy
Enchantments
Necrogen Communion
49%inclusion54 decks110 decks
47%synergy
Phyrexian Arena
36%inclusion40 decks110 decks
-3%synergy
Cover of Darkness
30%inclusion33 decks110 decks
27%synergy
Phyresis
27%inclusion30 decks110 decks
25%synergy
Oversold Cemetery
24%inclusion26 decks110 decks
18%synergy
Bad Moon
20%inclusion22 decks110 decks
17%synergy
Haunted One
18%inclusion20 decks110 decks
16%synergy
Tribute to Horobi
15%inclusion17 decks110 decks
14%synergy
Grave Pact
12%inclusion13 decks110 decks
-8%synergy
Black Market Connections
11%inclusion12 decks110 decks
-13%synergy
Lord Skitter's Blessing
11%inclusion12 decks110 decks
10%synergy
Black Market
10%inclusion11 decks110 decks
-11%synergy
Phyrexian Reclamation
10%inclusion11 decks110 decks
0%synergy
Vampiric Rites
10%inclusion11 decks110 decks
4%synergy
Dictate of Erebos
7.3%inclusion8 decks110 decks
-4%synergy
Glistening Oil
5.5%inclusion6 decks110 decks
5%synergy
Intimidation
5.5%inclusion6 decks110 decks
5%synergy
Snake Cult Initiation
5.5%inclusion6 decks110 decks
5%synergy
Planeswalkers
Vraska, Betrayal's Sting
28%inclusion31 decks110 decks
26%synergy
Liliana of the Dark Realms
10%inclusion11 decks110 decks
-4%synergy
Utility Lands
Swarmyard
62%inclusion68 decks110 decks
56%synergy
Karn's Bastion
55%inclusion61 decks110 decks
52%synergy
Bojuka Bog
45%inclusion50 decks110 decks
-1%synergy
Rogue's Passage
45%inclusion50 decks110 decks
26%synergy
Mudflat Village
40%inclusion42 decks106 decks
37%synergy
Cabal Coffers
31%inclusion34 decks110 decks
-24%synergy
Witch's Cottage
30%inclusion33 decks110 decks
5%synergy
Cabal Stronghold
28%inclusion31 decks110 decks
-6%synergy
Mortuary Mire
27%inclusion30 decks110 decks
14%synergy
Access Tunnel
23%inclusion25 decks110 decks
20%synergy
Three Tree City
22%inclusion23 decks105 decks
17%synergy
Nykthos, Shrine to Nyx
21%inclusion23 decks110 decks
-9%synergy
Urborg, Tomb of Yawgmoth
19%inclusion21 decks110 decks
-18%synergy
Barren Moor
17%inclusion19 decks110 decks
8%synergy
Reliquary Tower
17%inclusion19 decks110 decks
-13%synergy
Secret Tunnel
17%inclusion9 decks53 decks
16%synergy
Phyrexian Tower
15%inclusion16 decks110 decks
-11%synergy
Castle Locthwain
15%inclusion16 decks110 decks
-2%synergy
Shizo, Death's Storehouse
11%inclusion12 decks110 decks
1%synergy
Crypt of Agadeem
11%inclusion12 decks110 decks
0%synergy
The Dross Pits
9.1%inclusion10 decks110 decks
8%synergy
Inkmoth Nexus
8.2%inclusion9 decks110 decks
7%synergy
War Room
8.2%inclusion9 decks110 decks
-8%synergy
Minas Morgul, Dark Fortress
8.2%inclusion9 decks110 decks
5%synergy
Takenuma, Abandoned Mire
7.3%inclusion8 decks110 decks
-8%synergy
Temple of the False God
6.4%inclusion7 decks110 decks
-1%synergy
Vesuva
5.5%inclusion6 decks110 decks
3%synergy
Mutavault
5.5%inclusion6 decks110 decks
5%synergy
Polluted Mire
5.5%inclusion6 decks110 decks
2%synergy
Mana Artifacts
Sol Ring
68%inclusion75 decks110 decks
-18%synergy
Arcane Signet
49%inclusion54 decks110 decks
-13%synergy
Glistening Sphere
49%inclusion54 decks110 decks
48%synergy
Staff of Compleation
25%inclusion27 decks110 decks
23%synergy
Patchwork Banner
23%inclusion24 decks105 decks
19%synergy
Charcoal Diamond
21%inclusion23 decks110 decks
-1%synergy
Mind Stone
21%inclusion23 decks110 decks
-8%synergy
Heraldic Banner
14%inclusion15 decks110 decks
8%synergy
Phyrexian Atlas
14%inclusion15 decks110 decks
13%synergy
Caged Sun
13%inclusion14 decks110 decks
2%synergy
Commander's Sphere
9.1%inclusion10 decks110 decks
1%synergy
Gauntlet of Power
6.4%inclusion7 decks110 decks
3%synergy
The Soul Stone
6.3%inclusion4 decks64 decks
-8%synergy
Thought Vessel
5.5%inclusion6 decks110 decks
-20%synergy
Lands
Swamp
98%inclusion108 decks110 decks
3%synergy
Path of Ancestry
44%inclusion48 decks110 decks
38%synergy
Myriad Landscape
23%inclusion25 decks110 decks
-3%synergy
Fell the Profane
12%inclusion13 decks108 decks
-7%synergy
Cavern of Souls
12%inclusion13 decks110 decks
5%synergy
Escape Tunnel
11%inclusion12 decks110 decks
10%synergy
Big Apple, 3 a.m.
10%inclusion3 decks31 decks
8%synergy
Malakir Rebirth
9.1%inclusion10 decks110 decks
-14%synergy
Command Tower
8.2%inclusion9 decks110 decks
3%synergy
Terramorphic Expanse
5.5%inclusion6 decks110 decks
3%synergy
Urza's Cave
5.5%inclusion6 decks110 decks
-3%synergy
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