Karumonix, the Rat King (Commander) - Proliferate

Karumonix, the Rat King
Rank #393
41decks
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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Blightbelly Rat
95%inclusion39 decks41 decks
92%synergy
Infectious Inquiry
83%inclusion34 decks41 decks
80%synergy
Ichor Rats
83%inclusion34 decks41 decks
80%synergy
Drown in Ichor
80%inclusion33 decks41 decks
77%synergy
Vraska's Fall
78%inclusion32 decks41 decks
75%synergy
Pack Rat
80%inclusion33 decks41 decks
74%synergy
Piper of the Swarm
80%inclusion33 decks41 decks
74%synergy
Whisper of the Dross
76%inclusion31 decks41 decks
73%synergy
Marrow-Gnawer
76%inclusion31 decks41 decks
72%synergy
Crypt Rats
76%inclusion31 decks41 decks
71%synergy
Top Cards
Ogre Slumlord
76%inclusion31 decks41 decks
66%synergy
Lord Skitter, Sewer King
76%inclusion31 decks41 decks
67%synergy
Dark Ritual
73%inclusion30 decks41 decks
6%synergy
Typhoid Rats
73%inclusion30 decks41 decks
69%synergy
Rancid Rats
73%inclusion30 decks41 decks
71%synergy
Tangled Colony
66%inclusion27 decks41 decks
63%synergy
Lord Skitter's Butcher
66%inclusion27 decks41 decks
63%synergy
Phyresis Outbreak
61%inclusion25 decks41 decks
59%synergy
Rat Colony
61%inclusion25 decks41 decks
55%synergy
Septic Rats
59%inclusion24 decks41 decks
57%synergy
Game Changers
Bolas's Citadel
10%inclusion4 decks41 decks
-19%synergy
Demonic Tutor
10%inclusion4 decks41 decks
-17%synergy
Vampiric Tutor
7.3%inclusion3 decks41 decks
-14%synergy
Creatures
Voracious Vermin
54%inclusion22 decks41 decks
51%synergy
Burglar Rat
51%inclusion21 decks41 decks
40%synergy
Persistent Marshstalker
50%inclusion20 decks40 decks
47%synergy
Stronghold Rats
49%inclusion20 decks41 decks
45%synergy
Gnat Miser
46%inclusion19 decks41 decks
44%synergy
Engine Rat
41%inclusion15 decks37 decks
39%synergy
Chittering Skitterling
39%inclusion16 decks41 decks
38%synergy
Ashcoat of the Shadow Swarm
39%inclusion16 decks41 decks
36%synergy
Ratcatcher
37%inclusion15 decks41 decks
33%synergy
Nezumi Prowler
34%inclusion14 decks41 decks
33%synergy
Wave of Rats
34%inclusion14 decks41 decks
32%synergy
Nashi, Moon Sage's Scion
34%inclusion14 decks41 decks
30%synergy
Ravenous Rats
32%inclusion13 decks41 decks
30%synergy
Changeling Outcast
32%inclusion13 decks41 decks
27%synergy
Pestilence Rats
32%inclusion13 decks41 decks
30%synergy
Swarm of Rats
29%inclusion12 decks41 decks
27%synergy
Ruin Rat
29%inclusion12 decks41 decks
28%synergy
Rat King, Verminister
28%inclusion5 decks18 decks
25%synergy
Ink-Eyes, Servant of Oni
27%inclusion11 decks41 decks
24%synergy
Chittering Witch
27%inclusion11 decks41 decks
22%synergy
Old Flitterfang
27%inclusion11 decks41 decks
26%synergy
Innocuous Rat
24%inclusion9 decks38 decks
23%synergy
Gnawing Vermin
22%inclusion9 decks41 decks
20%synergy
Mukotai Ambusher
22%inclusion9 decks41 decks
21%synergy
Throat Slitter
22%inclusion9 decks41 decks
20%synergy
Undercity Dire Rat
20%inclusion7 decks35 decks
18%synergy
Elephant-Rat
20%inclusion6 decks30 decks
20%synergy
Nezumi Bladeblesser
20%inclusion8 decks41 decks
19%synergy
Nezumi Cutthroat
20%inclusion8 decks41 decks
19%synergy
Drainpipe Vermin
20%inclusion8 decks41 decks
18%synergy
Rat King, Pale Piper
18%inclusion3 decks17 decks
13%synergy
Ruthless Radrat
17%inclusion7 decks41 decks
16%synergy
Skullsnatcher
17%inclusion7 decks41 decks
16%synergy
Razortooth Rats
17%inclusion7 decks41 decks
16%synergy
Nezumi Informant
17%inclusion7 decks41 decks
11%synergy
Thornplate Intimidator
15%inclusion6 decks40 decks
14%synergy
Daggerfang Duo
15%inclusion6 decks40 decks
14%synergy
Nezumi Graverobber
15%inclusion6 decks41 decks
13%synergy
Ayara, First of Locthwain
15%inclusion6 decks41 decks
-11%synergy
Species Specialist
15%inclusion6 decks41 decks
11%synergy
Zodiac Rat
15%inclusion6 decks41 decks
14%synergy
Sinuous Vermin
15%inclusion6 decks41 decks
14%synergy
Locust Miser
15%inclusion6 decks41 decks
13%synergy
Yawgmoth, Thran Physician
15%inclusion6 decks41 decks
5%synergy
Valley Rotcaller
13%inclusion5 decks40 decks
10%synergy
Tunnel Rats
13%inclusion2 decks16 decks
12%synergy
Chittering Rats
12%inclusion5 decks41 decks
12%synergy
Filth
12%inclusion5 decks41 decks
10%synergy
Scrib Nibblers
12%inclusion5 decks41 decks
12%synergy
Crypt Ghast
12%inclusion5 decks41 decks
-35%synergy
Instants
Grim Affliction
46%inclusion19 decks41 decks
44%synergy
Village Rites
37%inclusion15 decks41 decks
11%synergy
Defile
37%inclusion15 decks41 decks
1%synergy
Go for the Throat
29%inclusion12 decks41 decks
7%synergy
Rat Out
27%inclusion11 decks41 decks
25%synergy
Tainted Strike
27%inclusion11 decks41 decks
24%synergy
Deadly Dispute
22%inclusion9 decks41 decks
-4%synergy
Tragic Slip
22%inclusion9 decks41 decks
2%synergy
Anoint with Affliction
20%inclusion8 decks41 decks
19%synergy
Murder
20%inclusion8 decks41 decks
10%synergy
Corrupted Conviction
20%inclusion8 decks41 decks
7%synergy
Fell the Profane
17%inclusion7 decks41 decks
-2%synergy
Withering Torment
16%inclusion6 decks38 decks
-16%synergy
Virulent Wound
12%inclusion5 decks41 decks
12%synergy
Infernal Grasp
12%inclusion5 decks41 decks
-13%synergy
Doom Blade
10%inclusion4 decks41 decks
3%synergy
Culling the Weak
10%inclusion4 decks41 decks
-7%synergy
Undying Malice
10%inclusion4 decks41 decks
-0%synergy
Offer Immortality
10%inclusion4 decks41 decks
8%synergy
Hagra Mauling
7.3%inclusion3 decks41 decks
3%synergy
Sheoldred's Edict
7.3%inclusion3 decks41 decks
-8%synergy
Songs of the Damned
7.3%inclusion3 decks41 decks
2%synergy
Consuming Corruption
7.3%inclusion3 decks41 decks
-8%synergy
Cabal Ritual
7.3%inclusion3 decks41 decks
-11%synergy
Darkness
7.3%inclusion3 decks41 decks
-3%synergy
Foul-Tongue Shriek
7.3%inclusion3 decks41 decks
6%synergy
Malakir Rebirth
7.3%inclusion3 decks41 decks
-16%synergy
Feign Death
7.3%inclusion3 decks41 decks
-1%synergy
Sorceries
Vat Emergence
39%inclusion16 decks41 decks
38%synergy
Feed the Swarm
37%inclusion15 decks41 decks
-14%synergy
Sign in Blood
37%inclusion15 decks41 decks
1%synergy
Crippling Fear
29%inclusion12 decks41 decks
26%synergy
Revenge of the Rats
29%inclusion11 decks38 decks
26%synergy
Spread the Sickness
24%inclusion10 decks41 decks
24%synergy
Feed the Infection
24%inclusion10 decks41 decks
24%synergy
Read the Bones
24%inclusion10 decks41 decks
8%synergy
Night's Whisper
24%inclusion10 decks41 decks
-0%synergy
Swarmyard Massacre
23%inclusion9 decks40 decks
20%synergy
Splinter's Technique
22%inclusion4 decks18 decks
20%synergy
Kindred Dominance
22%inclusion9 decks41 decks
17%synergy
Patriarch's Bidding
17%inclusion7 decks41 decks
13%synergy
Lab Rats
17%inclusion7 decks41 decks
17%synergy
Plague of Vermin
17%inclusion7 decks41 decks
15%synergy
Bloodline Bidding
16%inclusion3 decks19 decks
11%synergy
Psychic Whorl
15%inclusion6 decks40 decks
15%synergy
Victimize
12%inclusion5 decks41 decks
-15%synergy
Bubbling Muck
12%inclusion5 decks41 decks
-3%synergy
Caress of Phyrexia
12%inclusion5 decks41 decks
12%synergy
Toxic Deluge
12%inclusion5 decks41 decks
-25%synergy
Fell
10%inclusion4 decks40 decks
7%synergy
Diabolic Tutor
10%inclusion4 decks41 decks
-4%synergy
Unearth
10%inclusion4 decks41 decks
1%synergy
Diabolic Intent
7.3%inclusion3 decks41 decks
-8%synergy
Reanimate
7.3%inclusion3 decks41 decks
-33%synergy
In Garruk's Wake
7.3%inclusion3 decks41 decks
4%synergy
Insatiable Avarice
7.3%inclusion3 decks41 decks
-4%synergy
Dirge of Dread
7.3%inclusion3 decks41 decks
7%synergy
Geth's Summons
7.3%inclusion3 decks41 decks
7%synergy
Gruesome Fate
7.3%inclusion3 decks41 decks
5%synergy
Final Vengeance
5.3%inclusion2 decks38 decks
4%synergy
Utility Artifacts
Jet Medallion
56%inclusion23 decks41 decks
-6%synergy
Contagion Clasp
54%inclusion22 decks41 decks
51%synergy
Bontu's Monument
54%inclusion22 decks41 decks
25%synergy
Herald's Horn
39%inclusion16 decks41 decks
33%synergy
Contagion Engine
34%inclusion14 decks41 decks
32%synergy
Swiftfoot Boots
29%inclusion12 decks41 decks
-2%synergy
Skullclamp
24%inclusion10 decks41 decks
2%synergy
Prosthetic Injector
17%inclusion7 decks41 decks
17%synergy
Vanquisher's Banner
15%inclusion6 decks41 decks
11%synergy
Lightning Greaves
15%inclusion6 decks41 decks
-19%synergy
Banner of Kinship
13%inclusion5 decks38 decks
11%synergy
Icon of Ancestry
12%inclusion5 decks41 decks
11%synergy
Whip of Erebos
12%inclusion5 decks41 decks
1%synergy
Grafted Exoskeleton
12%inclusion5 decks41 decks
11%synergy
The Darkness Crystal
11%inclusion4 decks35 decks
-9%synergy
Whispersilk Cloak
10%inclusion4 decks41 decks
4%synergy
Ashnod's Altar
7.3%inclusion3 decks41 decks
-13%synergy
Throne of Geth
7.3%inclusion3 decks41 decks
7%synergy
Coat of Arms
7.3%inclusion3 decks41 decks
5%synergy
Expedition Map
7.3%inclusion3 decks41 decks
-4%synergy
Door of Destinies
7.3%inclusion3 decks41 decks
5%synergy
Thornbite Staff
7.3%inclusion3 decks41 decks
4%synergy
Obelisk of Urd
7.3%inclusion3 decks41 decks
7%synergy
Chronicle of Victory
5.3%inclusion1 decks19 decks
2%synergy
Gathering Stone
5.3%inclusion1 decks19 decks
4%synergy
Enchantments
Necrogen Communion
56%inclusion23 decks41 decks
54%synergy
Cover of Darkness
46%inclusion19 decks41 decks
43%synergy
Phyrexian Arena
37%inclusion15 decks41 decks
-3%synergy
Phyresis
29%inclusion12 decks41 decks
27%synergy
Bad Moon
24%inclusion10 decks41 decks
21%synergy
Haunted One
20%inclusion8 decks41 decks
17%synergy
Oversold Cemetery
20%inclusion8 decks41 decks
14%synergy
Grave Pact
15%inclusion6 decks41 decks
-5%synergy
Black Market
12%inclusion5 decks41 decks
-9%synergy
Glistening Oil
12%inclusion5 decks41 decks
12%synergy
Tribute to Horobi
12%inclusion5 decks41 decks
11%synergy
Black Market Connections
12%inclusion5 decks41 decks
-12%synergy
Lord Skitter's Blessing
10%inclusion4 decks41 decks
9%synergy
Phyrexian Reclamation
7.3%inclusion3 decks41 decks
-3%synergy
Vampiric Rites
7.3%inclusion3 decks41 decks
1%synergy
Relic Putrescence
7.3%inclusion3 decks41 decks
7%synergy
Intimidation
7.3%inclusion3 decks41 decks
7%synergy
Ninja Teen
5.6%inclusion1 decks18 decks
4%synergy
Planeswalkers
Vraska, Betrayal's Sting
54%inclusion22 decks41 decks
51%synergy
Liliana of the Dark Realms
15%inclusion6 decks41 decks
1%synergy
Utility Lands
Swarmyard
73%inclusion30 decks41 decks
67%synergy
Karn's Bastion
73%inclusion30 decks41 decks
69%synergy
Bojuka Bog
56%inclusion23 decks41 decks
9%synergy
Mudflat Village
43%inclusion17 decks40 decks
40%synergy
Witch's Cottage
41%inclusion17 decks41 decks
17%synergy
Cabal Coffers
41%inclusion17 decks41 decks
-13%synergy
Rogue's Passage
39%inclusion16 decks41 decks
20%synergy
Cabal Stronghold
34%inclusion14 decks41 decks
-0%synergy
Access Tunnel
27%inclusion11 decks41 decks
24%synergy
Reliquary Tower
24%inclusion10 decks41 decks
-6%synergy
Mortuary Mire
22%inclusion9 decks41 decks
9%synergy
Crypt of Agadeem
22%inclusion9 decks41 decks
11%synergy
Urborg, Tomb of Yawgmoth
22%inclusion9 decks41 decks
-16%synergy
Three Tree City
20%inclusion8 decks40 decks
15%synergy
Phyrexian Tower
20%inclusion8 decks41 decks
-6%synergy
Nykthos, Shrine to Nyx
20%inclusion8 decks41 decks
-10%synergy
Barren Moor
15%inclusion6 decks41 decks
5%synergy
Secret Tunnel
13%inclusion3 decks24 decks
11%synergy
The Dross Pits
10%inclusion4 decks41 decks
8%synergy
Peat Bog
10%inclusion4 decks41 decks
8%synergy
Castle Locthwain
10%inclusion4 decks41 decks
-7%synergy
Temple of the False God
10%inclusion4 decks41 decks
2%synergy
Shizo, Death's Storehouse
7.3%inclusion3 decks41 decks
-3%synergy
Vault of Whispers
7.3%inclusion3 decks41 decks
2%synergy
Command Beacon
7.3%inclusion3 decks41 decks
-1%synergy
Takenuma, Abandoned Mire
7.3%inclusion3 decks41 decks
-8%synergy
Mana Artifacts
Sol Ring
83%inclusion34 decks41 decks
-3%synergy
Glistening Sphere
61%inclusion25 decks41 decks
60%synergy
Arcane Signet
46%inclusion19 decks41 decks
-15%synergy
Staff of Compleation
41%inclusion17 decks41 decks
40%synergy
Patchwork Banner
25%inclusion10 decks40 decks
21%synergy
Charcoal Diamond
22%inclusion9 decks41 decks
-0%synergy
Phyrexian Atlas
17%inclusion7 decks41 decks
17%synergy
Mind Stone
17%inclusion7 decks41 decks
-11%synergy
Commander's Sphere
10%inclusion4 decks41 decks
2%synergy
Heraldic Banner
10%inclusion4 decks41 decks
4%synergy
Thought Vessel
7.3%inclusion3 decks41 decks
-18%synergy
Lands
Swamp
100%inclusion41 decks41 decks
5%synergy
Path of Ancestry
51%inclusion21 decks41 decks
46%synergy
Myriad Landscape
24%inclusion10 decks41 decks
-1%synergy
Fell the Profane
17%inclusion7 decks41 decks
-2%synergy
Escape Tunnel
15%inclusion6 decks41 decks
14%synergy
Cavern of Souls
15%inclusion6 decks41 decks
8%synergy
Command Tower
10%inclusion4 decks41 decks
4%synergy
Urza's Cave
10%inclusion4 decks41 decks
1%synergy
Evolving Wilds
10%inclusion4 decks41 decks
6%synergy
Hagra Mauling
7.3%inclusion3 decks41 decks
3%synergy
The Seedcore
7.3%inclusion3 decks41 decks
7%synergy
Ash Barrens
7.3%inclusion3 decks41 decks
6%synergy
Demolition Field
7.3%inclusion3 decks41 decks
2%synergy
Malakir Rebirth
7.3%inclusion3 decks41 decks
-16%synergy
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