Karumonix, the Rat King (Commander) - Aggro

Karumonix, the Rat King
Rank #400
61decks
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
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Piper of the Swarm
89%inclusion54 decks61 decks
82%synergy
Blightbelly Rat
84%inclusion51 decks61 decks
80%synergy
Marrow-Gnawer
74%inclusion45 decks61 decks
70%synergy
Ichor Rats
70%inclusion43 decks61 decks
68%synergy
Lord Skitter, Sewer King
75%inclusion46 decks61 decks
67%synergy
Ogre Slumlord
77%inclusion47 decks61 decks
67%synergy
Pack Rat
70%inclusion43 decks61 decks
65%synergy
Infectious Inquiry
64%inclusion39 decks61 decks
61%synergy
Drown in Ichor
62%inclusion38 decks61 decks
59%synergy
Typhoid Rats
59%inclusion36 decks61 decks
55%synergy
Top Cards
Dark Ritual
62%inclusion38 decks61 decks
-5%synergy
Jet Medallion
61%inclusion37 decks61 decks
-2%synergy
Rat Colony
59%inclusion36 decks61 decks
53%synergy
Rancid Rats
57%inclusion35 decks61 decks
55%synergy
Tangled Colony
56%inclusion34 decks61 decks
53%synergy
Lord Skitter's Butcher
56%inclusion34 decks61 decks
53%synergy
Septic Rats
54%inclusion33 decks61 decks
52%synergy
Crypt Rats
52%inclusion32 decks61 decks
48%synergy
Vraska's Fall
48%inclusion29 decks61 decks
44%synergy
Rat King, Pale Piper
47%inclusion9 decks19 decks
43%synergy
Game Changers
Vampiric Tutor
16%inclusion10 decks61 decks
-5%synergy
Demonic Tutor
15%inclusion9 decks61 decks
-12%synergy
Bolas's Citadel
13%inclusion8 decks61 decks
-15%synergy
Creatures
Burglar Rat
46%inclusion28 decks61 decks
35%synergy
Stronghold Rats
46%inclusion28 decks61 decks
42%synergy
Gnat Miser
44%inclusion27 decks61 decks
42%synergy
Persistent Marshstalker
43%inclusion26 decks61 decks
40%synergy
Chittering Skitterling
41%inclusion25 decks61 decks
40%synergy
Voracious Vermin
41%inclusion25 decks61 decks
38%synergy
Ashcoat of the Shadow Swarm
41%inclusion25 decks61 decks
37%synergy
Changeling Outcast
39%inclusion24 decks61 decks
34%synergy
Nashi, Moon Sage's Scion
34%inclusion21 decks61 decks
31%synergy
Ruin Rat
34%inclusion21 decks61 decks
33%synergy
Wave of Rats
33%inclusion20 decks61 decks
31%synergy
Chittering Witch
31%inclusion19 decks61 decks
27%synergy
Nezumi Prowler
31%inclusion19 decks61 decks
30%synergy
Ratcatcher
31%inclusion19 decks61 decks
28%synergy
Species Specialist
30%inclusion18 decks61 decks
26%synergy
Locust Miser
30%inclusion18 decks61 decks
28%synergy
Swarm of Rats
30%inclusion18 decks61 decks
27%synergy
Engine Rat
29%inclusion15 decks51 decks
28%synergy
Rat King, Verminister
28%inclusion7 decks25 decks
25%synergy
Ink-Eyes, Servant of Oni
28%inclusion17 decks61 decks
25%synergy
Nezumi Cutthroat
28%inclusion17 decks61 decks
27%synergy
Undercity Dire Rat
26%inclusion10 decks38 decks
24%synergy
Throat Slitter
26%inclusion16 decks61 decks
24%synergy
Drainpipe Vermin
26%inclusion16 decks61 decks
25%synergy
Gnawing Vermin
25%inclusion15 decks61 decks
23%synergy
Nezumi Informant
25%inclusion15 decks61 decks
18%synergy
Rotting Rats
23%inclusion14 decks61 decks
20%synergy
Twisted Sewer-Witch
23%inclusion14 decks61 decks
22%synergy
Pestilence Rats
21%inclusion13 decks61 decks
19%synergy
Splinter, Hamato Yoshi
21%inclusion4 decks19 decks
21%synergy
Chittering Rats
18%inclusion11 decks61 decks
18%synergy
Ayara, First of Locthwain
18%inclusion11 decks61 decks
-7%synergy
Skullsnatcher
18%inclusion11 decks61 decks
17%synergy
Valley Rotcaller
18%inclusion11 decks61 decks
15%synergy
Elephant-Rat
17%inclusion5 decks30 decks
16%synergy
Ravenous Rats
16%inclusion10 decks61 decks
15%synergy
Razortooth Rats
16%inclusion10 decks61 decks
16%synergy
Nezumi Bone-Reader
16%inclusion10 decks61 decks
16%synergy
Nezumi Graverobber
15%inclusion9 decks61 decks
13%synergy
Ruthless Radrat
15%inclusion9 decks61 decks
14%synergy
Yawgmoth, Thran Physician
15%inclusion9 decks61 decks
5%synergy
Crypt Ghast
15%inclusion9 decks61 decks
-33%synergy
Innocuous Rat
13%inclusion8 decks60 decks
12%synergy
Gray Merchant of Asphodel
13%inclusion8 decks61 decks
-37%synergy
Mukotai Ambusher
13%inclusion8 decks61 decks
12%synergy
Refurbished Familiar
11%inclusion7 decks61 decks
9%synergy
Relentless Rats
11%inclusion7 decks61 decks
10%synergy
Sewer Rats
11%inclusion7 decks61 decks
11%synergy
Okiba-Gang Shinobi
11%inclusion7 decks61 decks
11%synergy
Tunnel Rats
11%inclusion2 decks18 decks
11%synergy
Instants
Whisper of the Dross
43%inclusion26 decks61 decks
40%synergy
Village Rites
34%inclusion21 decks61 decks
9%synergy
Go for the Throat
30%inclusion18 decks61 decks
7%synergy
Defile
28%inclusion17 decks61 decks
-8%synergy
Rat Out
23%inclusion14 decks61 decks
22%synergy
Tainted Strike
23%inclusion14 decks61 decks
20%synergy
Grim Affliction
20%inclusion12 decks61 decks
18%synergy
Infernal Grasp
20%inclusion12 decks61 decks
-5%synergy
Corrupted Conviction
20%inclusion12 decks61 decks
7%synergy
Withering Torment
17%inclusion10 decks60 decks
-15%synergy
Deadly Dispute
16%inclusion10 decks61 decks
-10%synergy
Anoint with Affliction
15%inclusion9 decks61 decks
14%synergy
Fell the Profane
13%inclusion8 decks61 decks
-6%synergy
Culling the Weak
13%inclusion8 decks61 decks
-4%synergy
Murder
13%inclusion8 decks61 decks
3%synergy
Tragic Slip
13%inclusion8 decks61 decks
-6%synergy
Cabal Ritual
11%inclusion7 decks61 decks
-7%synergy
Virulent Wound
11%inclusion7 decks61 decks
11%synergy
Curtains' Call
11%inclusion7 decks61 decks
10%synergy
Deadly Rollick
10%inclusion6 decks61 decks
-15%synergy
Imp's Mischief
10%inclusion6 decks61 decks
-15%synergy
Malakir Rebirth
10%inclusion6 decks61 decks
-13%synergy
Consuming Corruption
8.2%inclusion5 decks61 decks
-7%synergy
Gravepurge
8.2%inclusion5 decks61 decks
7%synergy
Sudden Spoiling
8.2%inclusion5 decks61 decks
-0%synergy
Alesha's Legacy
7.1%inclusion3 decks42 decks
6%synergy
Bitter Triumph
6.6%inclusion4 decks61 decks
-3%synergy
Foul-Tongue Shriek
6.6%inclusion4 decks61 decks
5%synergy
Baleful Mastery
6.6%inclusion4 decks61 decks
-2%synergy
Archenemy's Charm
6.3%inclusion2 decks32 decks
-3%synergy
Sorceries
Revenge of the Rats
41%inclusion23 decks56 decks
38%synergy
Phyresis Outbreak
39%inclusion24 decks61 decks
38%synergy
Feed the Swarm
39%inclusion24 decks61 decks
-11%synergy
Crippling Fear
38%inclusion23 decks61 decks
35%synergy
Patriarch's Bidding
31%inclusion19 decks61 decks
27%synergy
Kindred Dominance
31%inclusion19 decks61 decks
26%synergy
Sign in Blood
30%inclusion18 decks61 decks
-6%synergy
Night's Whisper
26%inclusion16 decks61 decks
1%synergy
Echoing Return
21%inclusion13 decks61 decks
18%synergy
Read the Bones
21%inclusion13 decks61 decks
5%synergy
Vat Emergence
20%inclusion12 decks61 decks
18%synergy
Unearth
20%inclusion12 decks61 decks
11%synergy
Swarmyard Massacre
18%inclusion11 decks61 decks
16%synergy
Toxic Deluge
18%inclusion11 decks61 decks
-19%synergy
Diabolic Intent
16%inclusion10 decks61 decks
1%synergy
Plague of Vermin
15%inclusion9 decks61 decks
12%synergy
Caress of Phyrexia
13%inclusion8 decks61 decks
12%synergy
Lab Rats
13%inclusion8 decks61 decks
13%synergy
Damnation
13%inclusion8 decks61 decks
-7%synergy
Pact of the Serpent
13%inclusion8 decks61 decks
11%synergy
Spread the Sickness
11%inclusion7 decks61 decks
11%synergy
Bubbling Muck
11%inclusion7 decks61 decks
-4%synergy
Bloodline Bidding
11%inclusion3 decks28 decks
7%synergy
Diabolic Tutor
10%inclusion6 decks61 decks
-4%synergy
Forever Young
10%inclusion6 decks61 decks
8%synergy
Haunting Voyage
10%inclusion6 decks61 decks
9%synergy
Mutilate
10%inclusion6 decks61 decks
-6%synergy
Living Death
10%inclusion6 decks61 decks
-0%synergy
Geth's Summons
10%inclusion6 decks61 decks
9%synergy
Feed the Infection
8.2%inclusion5 decks61 decks
8%synergy
Grim Tutor
8.2%inclusion5 decks61 decks
-3%synergy
Victimize
6.6%inclusion4 decks61 decks
-21%synergy
Syphon Mind
6.6%inclusion4 decks61 decks
-5%synergy
Insatiable Avarice
6.6%inclusion4 decks61 decks
-5%synergy
Eaten Alive
6.6%inclusion4 decks61 decks
3%synergy
Rise of the Dark Realms
6.6%inclusion4 decks61 decks
-7%synergy
Shredder's Technique
5.3%inclusion1 decks19 decks
2%synergy
Utility Artifacts
Bontu's Monument
43%inclusion26 decks61 decks
14%synergy
Herald's Horn
36%inclusion22 decks61 decks
30%synergy
Thrumming Stone
30%inclusion18 decks61 decks
25%synergy
Contagion Clasp
28%inclusion17 decks61 decks
26%synergy
Skullclamp
28%inclusion17 decks61 decks
6%synergy
Vanquisher's Banner
25%inclusion15 decks61 decks
21%synergy
Door of Destinies
20%inclusion12 decks61 decks
18%synergy
Contagion Engine
16%inclusion10 decks61 decks
15%synergy
Whip of Erebos
16%inclusion10 decks61 decks
5%synergy
Chronicle of Victory
14%inclusion4 decks28 decks
12%synergy
Thornbite Staff
13%inclusion8 decks61 decks
10%synergy
Coat of Arms
11%inclusion7 decks61 decks
9%synergy
Swiftfoot Boots
11%inclusion7 decks61 decks
-20%synergy
Lightning Greaves
11%inclusion7 decks61 decks
-22%synergy
Gathering Stone
11%inclusion3 decks28 decks
9%synergy
The Darkness Crystal
11%inclusion4 decks38 decks
-10%synergy
Vat of Rebirth
10%inclusion6 decks61 decks
6%synergy
Ashnod's Altar
10%inclusion6 decks61 decks
-10%synergy
Expedition Map
10%inclusion6 decks61 decks
-2%synergy
Banner of Kinship
7.0%inclusion4 decks57 decks
5%synergy
Prosthetic Injector
6.6%inclusion4 decks61 decks
6%synergy
Sword of Hearth and Home
6.6%inclusion4 decks61 decks
5%synergy
Akroma's Memorial
6.6%inclusion4 decks61 decks
6%synergy
Whispersilk Cloak
6.6%inclusion4 decks61 decks
1%synergy
Enchantments
Cover of Darkness
39%inclusion24 decks61 decks
36%synergy
Phyrexian Arena
34%inclusion21 decks61 decks
-5%synergy
Necrogen Communion
23%inclusion14 decks61 decks
21%synergy
Phyrexian Reclamation
18%inclusion11 decks61 decks
8%synergy
Grave Pact
18%inclusion11 decks61 decks
-1%synergy
Black Market Connections
16%inclusion10 decks61 decks
-8%synergy
Haunted One
15%inclusion9 decks61 decks
12%synergy
Bad Moon
13%inclusion8 decks61 decks
10%synergy
The Meathook Massacre
10%inclusion6 decks61 decks
-7%synergy
Black Market
10%inclusion6 decks61 decks
-11%synergy
Phyresis
10%inclusion6 decks61 decks
8%synergy
Oversold Cemetery
10%inclusion6 decks61 decks
5%synergy
Vampiric Rites
6.6%inclusion4 decks61 decks
1%synergy
Tribute to Horobi
6.6%inclusion4 decks61 decks
6%synergy
Intimidation
6.6%inclusion4 decks61 decks
6%synergy
Kaya's Ghostform
6.6%inclusion4 decks61 decks
-3%synergy
Painful Quandary
6.6%inclusion4 decks61 decks
-4%synergy
Lord Skitter's Blessing
6.6%inclusion4 decks61 decks
6%synergy
Sothera, the Supervoid
5.9%inclusion2 decks34 decks
3%synergy
Planeswalkers
Vraska, Betrayal's Sting
31%inclusion19 decks61 decks
29%synergy
Utility Lands
Swarmyard
61%inclusion37 decks61 decks
55%synergy
Cabal Coffers
51%inclusion31 decks61 decks
-4%synergy
Bojuka Bog
46%inclusion28 decks61 decks
-1%synergy
Karn's Bastion
43%inclusion26 decks61 decks
39%synergy
Mudflat Village
41%inclusion25 decks61 decks
38%synergy
Cabal Stronghold
33%inclusion20 decks61 decks
-2%synergy
Urborg, Tomb of Yawgmoth
28%inclusion17 decks61 decks
-10%synergy
Rogue's Passage
26%inclusion16 decks61 decks
7%synergy
Witch's Cottage
23%inclusion14 decks61 decks
-2%synergy
Mortuary Mire
20%inclusion12 decks61 decks
7%synergy
Reliquary Tower
20%inclusion12 decks61 decks
-10%synergy
Three Tree City
20%inclusion12 decks61 decks
15%synergy
Phyrexian Tower
18%inclusion11 decks61 decks
-8%synergy
Crypt of Agadeem
18%inclusion11 decks61 decks
7%synergy
Barren Moor
16%inclusion10 decks61 decks
7%synergy
Nykthos, Shrine to Nyx
16%inclusion10 decks61 decks
-13%synergy
Castle Locthwain
15%inclusion9 decks61 decks
-2%synergy
Shizo, Death's Storehouse
11%inclusion7 decks61 decks
1%synergy
Access Tunnel
11%inclusion7 decks61 decks
9%synergy
The Black Gate
10%inclusion6 decks61 decks
6%synergy
The Dross Pits
10%inclusion6 decks61 decks
9%synergy
Inkmoth Nexus
8.2%inclusion5 decks61 decks
7%synergy
War Room
8.2%inclusion5 decks61 decks
-8%synergy
Minas Morgul, Dark Fortress
8.2%inclusion5 decks61 decks
5%synergy
Temple of the False God
8.2%inclusion5 decks61 decks
1%synergy
Secret Tunnel
6.9%inclusion2 decks29 decks
6%synergy
Memorial to Folly
6.6%inclusion4 decks61 decks
3%synergy
Takenuma, Abandoned Mire
6.6%inclusion4 decks61 decks
-9%synergy
Mana Artifacts
Sol Ring
70%inclusion43 decks61 decks
-15%synergy
Arcane Signet
39%inclusion24 decks61 decks
-22%synergy
Glistening Sphere
25%inclusion15 decks61 decks
23%synergy
Staff of Compleation
21%inclusion13 decks61 decks
20%synergy
Patchwork Banner
18%inclusion11 decks61 decks
14%synergy
Charcoal Diamond
13%inclusion8 decks61 decks
-9%synergy
Mind Stone
13%inclusion8 decks61 decks
-15%synergy
Caged Sun
8.2%inclusion5 decks61 decks
-3%synergy
Thought Vessel
8.2%inclusion5 decks61 decks
-17%synergy
Commander's Sphere
6.6%inclusion4 decks61 decks
-1%synergy
Heraldic Banner
6.6%inclusion4 decks61 decks
1%synergy
Lands
Swamp
97%inclusion59 decks61 decks
1%synergy
Path of Ancestry
33%inclusion20 decks61 decks
28%synergy
Myriad Landscape
15%inclusion9 decks61 decks
-10%synergy
Fell the Profane
13%inclusion8 decks61 decks
-6%synergy
Command Tower
10%inclusion6 decks61 decks
4%synergy
Cavern of Souls
10%inclusion6 decks61 decks
3%synergy
Malakir Rebirth
10%inclusion6 decks61 decks
-13%synergy
Snow-Covered Swamp
8.2%inclusion5 decks61 decks
2%synergy
Escape Tunnel
6.6%inclusion4 decks61 decks
6%synergy
Urza's Cave
6.6%inclusion4 decks61 decks
-2%synergy
Evolving Wilds
6.6%inclusion4 decks61 decks
3%synergy
Big Apple, 3 a.m.
5.3%inclusion1 decks19 decks
3%synergy
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