Karumonix, the Rat King (Commander) - Aggro

Karumonix, the Rat King
Rank #384
62decks
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, Pale Piper
47%inclusion7 decks15 decks
42%synergy
Rat King, Verminister
19%inclusion4 decks21 decks
16%synergy
Tunnel Rats
14%inclusion2 decks14 decks
14%synergy
Splinter, Hamato Yoshi
13%inclusion2 decks15 decks
13%synergy
Shredder's Technique
6.7%inclusion1 decks15 decks
3%synergy
High Synergy Cards
Piper of the Swarm
90%inclusion56 decks62 decks
83%synergy
Blightbelly Rat
85%inclusion53 decks62 decks
82%synergy
Ichor Rats
71%inclusion44 decks62 decks
68%synergy
Marrow-Gnawer
71%inclusion44 decks62 decks
68%synergy
Pack Rat
73%inclusion45 decks62 decks
67%synergy
Ogre Slumlord
76%inclusion47 decks62 decks
66%synergy
Lord Skitter, Sewer King
73%inclusion45 decks62 decks
64%synergy
Drown in Ichor
66%inclusion41 decks62 decks
62%synergy
Infectious Inquiry
63%inclusion39 decks62 decks
60%synergy
Rancid Rats
60%inclusion37 decks62 decks
57%synergy
Top Cards
Dark Ritual
61%inclusion38 decks62 decks
-5%synergy
Typhoid Rats
60%inclusion37 decks62 decks
56%synergy
Lord Skitter's Butcher
58%inclusion36 decks62 decks
55%synergy
Jet Medallion
58%inclusion36 decks62 decks
-4%synergy
Tangled Colony
56%inclusion35 decks62 decks
53%synergy
Septic Rats
56%inclusion35 decks62 decks
55%synergy
Rat Colony
56%inclusion35 decks62 decks
51%synergy
Crypt Rats
55%inclusion34 decks62 decks
50%synergy
Burglar Rat
48%inclusion30 decks62 decks
37%synergy
Stronghold Rats
47%inclusion29 decks62 decks
43%synergy
Game Changers
Demonic Tutor
18%inclusion11 decks62 decks
-10%synergy
Vampiric Tutor
18%inclusion11 decks62 decks
-3%synergy
Bolas's Citadel
13%inclusion8 decks62 decks
-16%synergy
Creatures
Gnat Miser
45%inclusion28 decks62 decks
42%synergy
Persistent Marshstalker
42%inclusion25 decks59 decks
39%synergy
Voracious Vermin
42%inclusion26 decks62 decks
39%synergy
Chittering Skitterling
40%inclusion25 decks62 decks
39%synergy
Changeling Outcast
40%inclusion25 decks62 decks
35%synergy
Wave of Rats
39%inclusion24 decks62 decks
37%synergy
Nashi, Moon Sage's Scion
37%inclusion23 decks62 decks
33%synergy
Ruin Rat
37%inclusion23 decks62 decks
36%synergy
Chittering Witch
35%inclusion22 decks62 decks
31%synergy
Ashcoat of the Shadow Swarm
35%inclusion22 decks62 decks
32%synergy
Species Specialist
32%inclusion20 decks62 decks
29%synergy
Nezumi Cutthroat
31%inclusion19 decks62 decks
30%synergy
Ink-Eyes, Servant of Oni
29%inclusion18 decks62 decks
26%synergy
Swarm of Rats
29%inclusion18 decks62 decks
27%synergy
Nezumi Informant
29%inclusion18 decks62 decks
22%synergy
Nezumi Prowler
29%inclusion18 decks62 decks
28%synergy
Engine Rat
29%inclusion14 decks49 decks
27%synergy
Undercity Dire Rat
29%inclusion10 decks35 decks
27%synergy
Throat Slitter
27%inclusion17 decks62 decks
26%synergy
Locust Miser
27%inclusion17 decks62 decks
26%synergy
Twisted Sewer-Witch
27%inclusion17 decks62 decks
26%synergy
Ratcatcher
27%inclusion17 decks62 decks
24%synergy
Drainpipe Vermin
27%inclusion17 decks62 decks
26%synergy
Gnawing Vermin
26%inclusion16 decks62 decks
24%synergy
Rotting Rats
24%inclusion15 decks62 decks
21%synergy
Pestilence Rats
23%inclusion14 decks62 decks
21%synergy
Elephant-Rat
22%inclusion6 decks27 decks
22%synergy
Skullsnatcher
21%inclusion13 decks62 decks
20%synergy
Chittering Rats
19%inclusion12 decks62 decks
19%synergy
Ravenous Rats
19%inclusion12 decks62 decks
18%synergy
Ruthless Radrat
19%inclusion12 decks62 decks
19%synergy
Nezumi Bone-Reader
18%inclusion11 decks62 decks
17%synergy
Valley Rotcaller
17%inclusion10 decks59 decks
14%synergy
Nezumi Graverobber
16%inclusion10 decks62 decks
15%synergy
Ayara, First of Locthwain
16%inclusion10 decks62 decks
-9%synergy
Razortooth Rats
16%inclusion10 decks62 decks
16%synergy
Gray Merchant of Asphodel
15%inclusion9 decks62 decks
-37%synergy
Mukotai Ambusher
15%inclusion9 decks62 decks
14%synergy
Sewer Rats
15%inclusion9 decks62 decks
14%synergy
Innocuous Rat
14%inclusion8 decks58 decks
13%synergy
Bog Rats
13%inclusion8 decks62 decks
12%synergy
Nezumi Linkbreaker
13%inclusion8 decks62 decks
12%synergy
Yawgmoth, Thran Physician
13%inclusion8 decks62 decks
3%synergy
Crypt Ghast
13%inclusion8 decks62 decks
-35%synergy
Relentless Rats
11%inclusion7 decks62 decks
10%synergy
Defiler of Flesh
11%inclusion7 decks62 decks
7%synergy
Filth
11%inclusion7 decks62 decks
9%synergy
Nezumi Shortfang
11%inclusion7 decks62 decks
10%synergy
Okiba-Gang Shinobi
11%inclusion7 decks62 decks
10%synergy
Old Flitterfang
11%inclusion7 decks62 decks
10%synergy
Instants
Vraska's Fall
45%inclusion28 decks62 decks
42%synergy
Whisper of the Dross
40%inclusion25 decks62 decks
38%synergy
Village Rites
35%inclusion22 decks62 decks
10%synergy
Go for the Throat
29%inclusion18 decks62 decks
6%synergy
Defile
29%inclusion18 decks62 decks
-7%synergy
Rat Out
24%inclusion15 decks62 decks
23%synergy
Tainted Strike
24%inclusion15 decks62 decks
21%synergy
Grim Affliction
19%inclusion12 decks62 decks
17%synergy
Corrupted Conviction
19%inclusion12 decks62 decks
7%synergy
Infernal Grasp
18%inclusion11 decks62 decks
-7%synergy
Deadly Dispute
16%inclusion10 decks62 decks
-10%synergy
Anoint with Affliction
15%inclusion9 decks62 decks
14%synergy
Murder
15%inclusion9 decks62 decks
4%synergy
Withering Torment
14%inclusion8 decks58 decks
-18%synergy
Virulent Wound
13%inclusion8 decks62 decks
12%synergy
Malakir Rebirth
13%inclusion8 decks62 decks
-10%synergy
Tragic Slip
13%inclusion8 decks62 decks
-7%synergy
Fell the Profane
11%inclusion7 decks61 decks
-7%synergy
Deadly Rollick
11%inclusion7 decks62 decks
-13%synergy
Culling the Weak
11%inclusion7 decks62 decks
-5%synergy
Curtains' Call
11%inclusion7 decks62 decks
10%synergy
Cabal Ritual
10%inclusion6 decks62 decks
-8%synergy
Consuming Corruption
8.2%inclusion5 decks61 decks
-7%synergy
Not Dead After All
8.1%inclusion5 decks62 decks
-3%synergy
Foul-Tongue Shriek
8.1%inclusion5 decks62 decks
6%synergy
Baleful Mastery
8.1%inclusion5 decks62 decks
-1%synergy
Sudden Spoiling
8.1%inclusion5 decks62 decks
-1%synergy
Dismember
8.1%inclusion5 decks62 decks
-2%synergy
Alesha's Legacy
7.7%inclusion3 decks39 decks
6%synergy
Archenemy's Charm
6.9%inclusion2 decks29 decks
-2%synergy
Imp's Mischief
6.5%inclusion4 decks62 decks
-18%synergy
Bitter Triumph
6.5%inclusion4 decks62 decks
-3%synergy
Gravepurge
6.5%inclusion4 decks62 decks
5%synergy
Sorceries
Phyresis Outbreak
42%inclusion26 decks62 decks
40%synergy
Revenge of the Rats
39%inclusion21 decks54 decks
36%synergy
Feed the Swarm
37%inclusion23 decks62 decks
-13%synergy
Crippling Fear
37%inclusion23 decks62 decks
34%synergy
Kindred Dominance
34%inclusion21 decks62 decks
29%synergy
Patriarch's Bidding
31%inclusion19 decks62 decks
26%synergy
Sign in Blood
29%inclusion18 decks62 decks
-6%synergy
Night's Whisper
27%inclusion17 decks62 decks
3%synergy
Unearth
23%inclusion14 decks62 decks
14%synergy
Read the Bones
21%inclusion13 decks62 decks
4%synergy
Swarmyard Massacre
20%inclusion12 decks59 decks
18%synergy
Echoing Return
19%inclusion12 decks62 decks
16%synergy
Vat Emergence
18%inclusion11 decks62 decks
16%synergy
Diabolic Intent
16%inclusion10 decks62 decks
1%synergy
Lab Rats
16%inclusion10 decks62 decks
16%synergy
Toxic Deluge
15%inclusion9 decks62 decks
-22%synergy
Spread the Sickness
13%inclusion8 decks62 decks
12%synergy
Caress of Phyrexia
13%inclusion8 decks62 decks
12%synergy
Plague of Vermin
13%inclusion8 decks62 decks
10%synergy
Pact of the Serpent
13%inclusion8 decks62 decks
11%synergy
Bloodline Bidding
13%inclusion3 decks24 decks
8%synergy
Haunting Voyage
11%inclusion7 decks62 decks
10%synergy
Living Death
11%inclusion7 decks62 decks
1%synergy
Geth's Summons
11%inclusion7 decks62 decks
11%synergy
Damnation
11%inclusion7 decks62 decks
-9%synergy
Diabolic Tutor
10%inclusion6 decks62 decks
-5%synergy
Bubbling Muck
10%inclusion6 decks62 decks
-6%synergy
Mutilate
10%inclusion6 decks62 decks
-7%synergy
Forever Young
8.1%inclusion5 decks62 decks
7%synergy
Feed the Infection
8.1%inclusion5 decks62 decks
7%synergy
Grim Tutor
8.1%inclusion5 decks62 decks
-4%synergy
Reanimate
6.5%inclusion4 decks62 decks
-33%synergy
Gruesome Fate
6.5%inclusion4 decks62 decks
4%synergy
Eaten Alive
6.5%inclusion4 decks62 decks
3%synergy
Rise of the Dark Realms
6.5%inclusion4 decks62 decks
-6%synergy
Fell
5.1%inclusion3 decks59 decks
2%synergy
Utility Artifacts
Bontu's Monument
39%inclusion24 decks62 decks
10%synergy
Herald's Horn
34%inclusion21 decks62 decks
28%synergy
Thrumming Stone
29%inclusion18 decks62 decks
25%synergy
Vanquisher's Banner
27%inclusion17 decks62 decks
23%synergy
Contagion Clasp
26%inclusion16 decks62 decks
23%synergy
Skullclamp
26%inclusion16 decks62 decks
4%synergy
Door of Destinies
21%inclusion13 decks62 decks
19%synergy
Whip of Erebos
16%inclusion10 decks62 decks
5%synergy
Contagion Engine
15%inclusion9 decks62 decks
13%synergy
Expedition Map
13%inclusion8 decks62 decks
1%synergy
Coat of Arms
11%inclusion7 decks62 decks
9%synergy
Swiftfoot Boots
11%inclusion7 decks62 decks
-20%synergy
Vat of Rebirth
10%inclusion6 decks62 decks
6%synergy
Lightning Greaves
10%inclusion6 decks62 decks
-24%synergy
Banner of Kinship
9.1%inclusion5 decks55 decks
7%synergy
The Darkness Crystal
8.6%inclusion3 decks35 decks
-11%synergy
Chronicle of Victory
8.3%inclusion2 decks24 decks
5%synergy
Gathering Stone
8.3%inclusion2 decks24 decks
7%synergy
Ashnod's Altar
8.1%inclusion5 decks62 decks
-12%synergy
Thornbite Staff
8.1%inclusion5 decks62 decks
5%synergy
Icon of Ancestry
6.5%inclusion4 decks62 decks
5%synergy
Prosthetic Injector
6.5%inclusion4 decks62 decks
6%synergy
Sword of Hearth and Home
6.5%inclusion4 decks62 decks
5%synergy
Akroma's Memorial
6.5%inclusion4 decks62 decks
6%synergy
Whispersilk Cloak
6.5%inclusion4 decks62 decks
0%synergy
Eldrazi Monument
6.5%inclusion4 decks62 decks
5%synergy
Sword of the Squeak
5.1%inclusion3 decks59 decks
5%synergy
Enchantments
Cover of Darkness
42%inclusion26 decks62 decks
39%synergy
Phyrexian Arena
34%inclusion21 decks62 decks
-6%synergy
Necrogen Communion
23%inclusion14 decks62 decks
21%synergy
Grave Pact
18%inclusion11 decks62 decks
-2%synergy
Phyrexian Reclamation
15%inclusion9 decks62 decks
5%synergy
Bad Moon
15%inclusion9 decks62 decks
11%synergy
Haunted One
13%inclusion8 decks62 decks
10%synergy
Black Market Connections
13%inclusion8 decks62 decks
-11%synergy
The Meathook Massacre
11%inclusion7 decks62 decks
-6%synergy
Oversold Cemetery
11%inclusion7 decks62 decks
6%synergy
Black Market
10%inclusion6 decks62 decks
-11%synergy
Painful Quandary
10%inclusion6 decks62 decks
-1%synergy
Vampiric Rites
8.1%inclusion5 decks62 decks
2%synergy
Tribute to Horobi
8.1%inclusion5 decks62 decks
7%synergy
Phyresis
8.1%inclusion5 decks62 decks
6%synergy
Lord Skitter's Blessing
8.1%inclusion5 decks62 decks
7%synergy
Intimidation
6.5%inclusion4 decks62 decks
6%synergy
Sothera, the Supervoid
6.5%inclusion2 decks31 decks
4%synergy
Planeswalkers
Vraska, Betrayal's Sting
26%inclusion16 decks62 decks
23%synergy
Utility Lands
Swarmyard
60%inclusion37 decks62 decks
54%synergy
Cabal Coffers
50%inclusion31 decks62 decks
-5%synergy
Bojuka Bog
48%inclusion30 decks62 decks
2%synergy
Karn's Bastion
42%inclusion26 decks62 decks
38%synergy
Mudflat Village
39%inclusion23 decks59 decks
36%synergy
Cabal Stronghold
31%inclusion19 decks62 decks
-4%synergy
Urborg, Tomb of Yawgmoth
31%inclusion19 decks62 decks
-7%synergy
Rogue's Passage
27%inclusion17 decks62 decks
8%synergy
Witch's Cottage
24%inclusion15 decks62 decks
0%synergy
Three Tree City
22%inclusion13 decks59 decks
17%synergy
Mortuary Mire
21%inclusion13 decks62 decks
8%synergy
Nykthos, Shrine to Nyx
21%inclusion13 decks62 decks
-9%synergy
Phyrexian Tower
19%inclusion12 decks62 decks
-6%synergy
Castle Locthwain
18%inclusion11 decks62 decks
1%synergy
Reliquary Tower
18%inclusion11 decks62 decks
-13%synergy
Barren Moor
16%inclusion10 decks62 decks
6%synergy
Crypt of Agadeem
16%inclusion10 decks62 decks
5%synergy
Access Tunnel
13%inclusion8 decks62 decks
10%synergy
Shizo, Death's Storehouse
11%inclusion7 decks62 decks
1%synergy
Memorial to Folly
10%inclusion6 decks62 decks
6%synergy
The Black Gate
10%inclusion6 decks62 decks
6%synergy
The Dross Pits
10%inclusion6 decks62 decks
8%synergy
Mutavault
8.1%inclusion5 decks62 decks
7%synergy
Minas Morgul, Dark Fortress
8.1%inclusion5 decks62 decks
5%synergy
Secret Tunnel
7.7%inclusion2 decks26 decks
6%synergy
Inkmoth Nexus
6.5%inclusion4 decks62 decks
5%synergy
War Room
6.5%inclusion4 decks62 decks
-10%synergy
Takenuma, Abandoned Mire
6.5%inclusion4 decks62 decks
-9%synergy
Temple of the False God
6.5%inclusion4 decks62 decks
-1%synergy
Hidden Necropolis
6.5%inclusion4 decks62 decks
5%synergy
Mana Artifacts
Sol Ring
68%inclusion42 decks62 decks
-18%synergy
Arcane Signet
40%inclusion25 decks62 decks
-21%synergy
Glistening Sphere
23%inclusion14 decks62 decks
21%synergy
Staff of Compleation
18%inclusion11 decks62 decks
16%synergy
Patchwork Banner
17%inclusion10 decks59 decks
13%synergy
Charcoal Diamond
15%inclusion9 decks62 decks
-8%synergy
Mind Stone
13%inclusion8 decks62 decks
-16%synergy
Caged Sun
10%inclusion6 decks62 decks
-2%synergy
Heraldic Banner
10%inclusion6 decks62 decks
4%synergy
Commander's Sphere
6.5%inclusion4 decks62 decks
-2%synergy
Fellwar Stone
6.5%inclusion4 decks62 decks
-8%synergy
Thought Vessel
6.5%inclusion4 decks62 decks
-19%synergy
Lands
Swamp
97%inclusion60 decks62 decks
2%synergy
Path of Ancestry
32%inclusion20 decks62 decks
27%synergy
Myriad Landscape
18%inclusion11 decks62 decks
-8%synergy
Cavern of Souls
15%inclusion9 decks62 decks
8%synergy
Malakir Rebirth
13%inclusion8 decks62 decks
-10%synergy
Fell the Profane
11%inclusion7 decks61 decks
-7%synergy
Command Tower
10%inclusion6 decks62 decks
4%synergy
Escape Tunnel
8.1%inclusion5 decks62 decks
7%synergy
Big Apple, 3 a.m.
6.7%inclusion1 decks15 decks
5%synergy
Urza's Cave
6.5%inclusion4 decks62 decks
-2%synergy
Evolving Wilds
6.5%inclusion4 decks62 decks
3%synergy
Snow-Covered Swamp
6.5%inclusion4 decks62 decks
0%synergy
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