Karumonix, the Rat King (Commander) - Budget Upgraded

Karumonix, the Rat King
Rank #383
29decks
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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Blightbelly Rat
93%inclusion27 decks29 decks
90%synergy
Typhoid Rats
93%inclusion27 decks29 decks
89%synergy
Ichor Rats
86%inclusion25 decks29 decks
83%synergy
Ogre Slumlord
90%inclusion26 decks29 decks
80%synergy
Rancid Rats
79%inclusion23 decks29 decks
77%synergy
Infectious Inquiry
79%inclusion23 decks29 decks
77%synergy
Lord Skitter's Butcher
79%inclusion23 decks29 decks
76%synergy
Voracious Vermin
76%inclusion22 decks29 decks
73%synergy
Vraska's Fall
76%inclusion22 decks29 decks
72%synergy
Piper of the Swarm
79%inclusion23 decks29 decks
72%synergy
Top Cards
Lord Skitter, Sewer King
79%inclusion23 decks29 decks
71%synergy
Tangled Colony
72%inclusion21 decks29 decks
69%synergy
Drown in Ichor
72%inclusion21 decks29 decks
69%synergy
Pack Rat
69%inclusion20 decks29 decks
63%synergy
Septic Rats
69%inclusion20 decks29 decks
67%synergy
Marrow-Gnawer
66%inclusion19 decks29 decks
62%synergy
Crypt Rats
62%inclusion18 decks29 decks
57%synergy
Persistent Marshstalker
62%inclusion18 decks29 decks
59%synergy
Chittering Skitterling
62%inclusion18 decks29 decks
61%synergy
Whisper of the Dross
59%inclusion17 decks29 decks
56%synergy
Game Changers
Bolas's Citadel
21%inclusion6 decks29 decks
-8%synergy
Creatures
Burglar Rat
59%inclusion17 decks29 decks
48%synergy
Gnat Miser
55%inclusion16 decks29 decks
52%synergy
Undercity Dire Rat
55%inclusion12 decks22 decks
53%synergy
Stronghold Rats
48%inclusion14 decks29 decks
45%synergy
Ravenous Rats
45%inclusion13 decks29 decks
43%synergy
Nezumi Cutthroat
45%inclusion13 decks29 decks
44%synergy
Pestilence Rats
45%inclusion13 decks29 decks
43%synergy
Ruin Rat
45%inclusion13 decks29 decks
43%synergy
Twisted Sewer-Witch
45%inclusion13 decks29 decks
43%synergy
Rat King, Verminister
44%inclusion4 decks9 decks
41%synergy
Swarm of Rats
41%inclusion12 decks29 decks
39%synergy
Chittering Witch
41%inclusion12 decks29 decks
37%synergy
Razortooth Rats
41%inclusion12 decks29 decks
41%synergy
Changeling Outcast
41%inclusion12 decks29 decks
36%synergy
Gnawing Vermin
38%inclusion11 decks29 decks
36%synergy
Drainpipe Vermin
38%inclusion11 decks29 decks
37%synergy
Nezumi Prowler
34%inclusion10 decks29 decks
33%synergy
Rat King, Pale Piper
33%inclusion3 decks9 decks
29%synergy
Refurbished Familiar
31%inclusion9 decks29 decks
29%synergy
Wave of Rats
31%inclusion9 decks29 decks
29%synergy
Engine Rat
31%inclusion9 decks29 decks
29%synergy
Ratcatcher
28%inclusion8 decks29 decks
24%synergy
Nezumi Informant
28%inclusion8 decks29 decks
21%synergy
Bog Rats
24%inclusion7 decks29 decks
24%synergy
Innocuous Rat
24%inclusion7 decks29 decks
23%synergy
Ayara, First of Locthwain
24%inclusion7 decks29 decks
-1%synergy
Rotting Rats
24%inclusion7 decks29 decks
21%synergy
Gray Merchant of Asphodel
24%inclusion7 decks29 decks
-27%synergy
Valley Rotcaller
24%inclusion7 decks29 decks
21%synergy
Ink-Eyes, Servant of Oni
24%inclusion7 decks29 decks
21%synergy
Chittering Rats
21%inclusion6 decks29 decks
20%synergy
Nezumi Graverobber
21%inclusion6 decks29 decks
19%synergy
Nezumi Bladeblesser
21%inclusion6 decks29 decks
20%synergy
Rat Colony
21%inclusion6 decks29 decks
15%synergy
Changeling Wayfinder
18%inclusion2 decks11 decks
18%synergy
Mukotai Ambusher
17%inclusion5 decks29 decks
16%synergy
Daggerfang Duo
17%inclusion5 decks29 decks
17%synergy
Throat Slitter
17%inclusion5 decks29 decks
15%synergy
Sinuous Vermin
17%inclusion5 decks29 decks
17%synergy
Adaptive Automaton
17%inclusion5 decks29 decks
16%synergy
Nashi, Moon Sage's Scion
17%inclusion5 decks29 decks
13%synergy
Old Flitterfang
17%inclusion5 decks29 decks
16%synergy
Relentless Rats
14%inclusion4 decks29 decks
12%synergy
Graveshifter
14%inclusion4 decks29 decks
13%synergy
Thornplate Intimidator
14%inclusion4 decks29 decks
13%synergy
Bloodline Pretender
14%inclusion4 decks29 decks
13%synergy
Skullsnatcher
14%inclusion4 decks29 decks
13%synergy
Nezumi Linkbreaker
14%inclusion4 decks29 decks
13%synergy
Sewer Rats
14%inclusion4 decks29 decks
14%synergy
Gulping Scraptrap
14%inclusion4 decks29 decks
13%synergy
Instants
Dark Ritual
48%inclusion14 decks29 decks
-18%synergy
Grim Affliction
48%inclusion14 decks29 decks
46%synergy
Village Rites
45%inclusion13 decks29 decks
19%synergy
Rat Out
41%inclusion12 decks29 decks
40%synergy
Deadly Dispute
41%inclusion12 decks29 decks
15%synergy
Murder
38%inclusion11 decks29 decks
28%synergy
Hero's Downfall
34%inclusion10 decks29 decks
28%synergy
Go for the Throat
31%inclusion9 decks29 decks
8%synergy
Corrupted Conviction
31%inclusion9 decks29 decks
19%synergy
Anoint with Affliction
24%inclusion7 decks29 decks
24%synergy
Consuming Corruption
24%inclusion7 decks29 decks
9%synergy
Raise the Draugr
24%inclusion7 decks29 decks
23%synergy
Virulent Wound
21%inclusion6 decks29 decks
20%synergy
Infernal Grasp
21%inclusion6 decks29 decks
-4%synergy
Defile
17%inclusion5 decks29 decks
-19%synergy
Altar's Reap
17%inclusion5 decks29 decks
15%synergy
Drag to the Underworld
17%inclusion5 decks29 decks
16%synergy
Not Dead After All
14%inclusion4 decks29 decks
2%synergy
Tainted Strike
14%inclusion4 decks29 decks
11%synergy
Foul-Tongue Shriek
14%inclusion4 decks29 decks
12%synergy
Fake Your Own Death
14%inclusion4 decks29 decks
7%synergy
Tragic Slip
14%inclusion4 decks29 decks
-6%synergy
Doom Blade
10%inclusion3 decks29 decks
3%synergy
Breathe Your Last
10%inclusion3 decks29 decks
8%synergy
Gravepurge
10%inclusion3 decks29 decks
9%synergy
Zuko's Conviction
7.7%inclusion1 decks13 decks
7%synergy
Alesha's Legacy
7.1%inclusion2 decks28 decks
6%synergy
Hazel's Nocturne
6.9%inclusion2 decks29 decks
6%synergy
Imp's Mischief
6.9%inclusion2 decks29 decks
-18%synergy
Undying Malice
6.9%inclusion2 decks29 decks
-3%synergy
Consumed by Greed
6.9%inclusion2 decks29 decks
6%synergy
Offer Immortality
6.9%inclusion2 decks29 decks
5%synergy
Nasty End
6.9%inclusion2 decks29 decks
4%synergy
Withering Torment
6.9%inclusion2 decks29 decks
-25%synergy
Maximum Overdrive
6.9%inclusion2 decks29 decks
6%synergy
Scorpion's Sting
5.3%inclusion1 decks19 decks
5%synergy
Archenemy's Charm
5.3%inclusion1 decks19 decks
-4%synergy
Sorceries
Revenge of the Rats
59%inclusion17 decks29 decks
56%synergy
Spread the Sickness
45%inclusion13 decks29 decks
44%synergy
Diabolic Tutor
41%inclusion12 decks29 decks
27%synergy
Sign in Blood
41%inclusion12 decks29 decks
6%synergy
Crippling Fear
41%inclusion12 decks29 decks
38%synergy
Vat Emergence
38%inclusion11 decks29 decks
37%synergy
Feed the Swarm
38%inclusion11 decks29 decks
-12%synergy
Victimize
31%inclusion9 decks29 decks
4%synergy
Read the Bones
31%inclusion9 decks29 decks
14%synergy
Night's Whisper
28%inclusion8 decks29 decks
3%synergy
Unearth
24%inclusion7 decks29 decks
15%synergy
Feed the Infection
24%inclusion7 decks29 decks
23%synergy
Mutilate
21%inclusion6 decks29 decks
4%synergy
Return from Extinction
17%inclusion5 decks29 decks
17%synergy
Predators' Hour
17%inclusion5 decks29 decks
16%synergy
Geth's Summons
17%inclusion5 decks29 decks
17%synergy
Caress of Phyrexia
17%inclusion5 decks29 decks
17%synergy
Phyresis Outbreak
14%inclusion4 decks29 decks
12%synergy
Swarmyard Massacre
14%inclusion4 decks29 decks
11%synergy
Lab Rats
14%inclusion4 decks29 decks
13%synergy
Decree of Pain
14%inclusion4 decks29 decks
8%synergy
Patriarch's Bidding
10%inclusion3 decks29 decks
6%synergy
Forever Young
10%inclusion3 decks29 decks
9%synergy
Syphon Mind
10%inclusion3 decks29 decks
-2%synergy
Profane Command
10%inclusion3 decks29 decks
8%synergy
Kindred Dominance
10%inclusion3 decks29 decks
6%synergy
Eaten Alive
10%inclusion3 decks29 decks
7%synergy
Bloodline Bidding
9.1%inclusion1 decks11 decks
5%synergy
Darkness Descends
9.1%inclusion1 decks11 decks
9%synergy
Strategic Betrayal
7.1%inclusion2 decks28 decks
7%synergy
Bone Splinters
6.9%inclusion2 decks29 decks
5%synergy
Command the Dreadhorde
6.9%inclusion2 decks29 decks
6%synergy
Profane Tutor
6.9%inclusion2 decks29 decks
3%synergy
March of the Returned
6.9%inclusion2 decks29 decks
7%synergy
Lash of the Balrog
6.9%inclusion2 decks29 decks
6%synergy
Ancient Craving
6.9%inclusion2 decks29 decks
5%synergy
Ambition's Cost
6.9%inclusion2 decks29 decks
4%synergy
Fell
6.9%inclusion2 decks29 decks
3%synergy
In Garruk's Wake
6.9%inclusion2 decks29 decks
3%synergy
Dirge of Dread
6.9%inclusion2 decks29 decks
6%synergy
Gruesome Fate
6.9%inclusion2 decks29 decks
5%synergy
Final Vengeance
6.9%inclusion2 decks29 decks
5%synergy
Exsanguinate
6.9%inclusion2 decks29 decks
-18%synergy
Annihilating Glare
6.9%inclusion2 decks29 decks
6%synergy
Deadly Precision
6.7%inclusion1 decks15 decks
6%synergy
Embrace Oblivion
5.3%inclusion1 decks19 decks
4%synergy
Temporal Intervention
5.3%inclusion1 decks19 decks
5%synergy
Utility Artifacts
Bontu's Monument
48%inclusion14 decks29 decks
20%synergy
Contagion Clasp
41%inclusion12 decks29 decks
39%synergy
Herald's Horn
41%inclusion12 decks29 decks
36%synergy
Icon of Ancestry
38%inclusion11 decks29 decks
37%synergy
Vanquisher's Banner
24%inclusion7 decks29 decks
20%synergy
Swiftfoot Boots
24%inclusion7 decks29 decks
-7%synergy
Wayfarer's Bauble
21%inclusion6 decks29 decks
6%synergy
Jet Medallion
21%inclusion6 decks29 decks
-41%synergy
Thieves' Tools
14%inclusion4 decks29 decks
12%synergy
Hall of Triumph
14%inclusion4 decks29 decks
13%synergy
Grafted Exoskeleton
14%inclusion4 decks29 decks
13%synergy
Vat of Rebirth
10%inclusion3 decks29 decks
7%synergy
Heirloom Blade
10%inclusion3 decks29 decks
10%synergy
Prosthetic Injector
10%inclusion3 decks29 decks
10%synergy
Door of Destinies
10%inclusion3 decks29 decks
8%synergy
Skullclamp
10%inclusion3 decks29 decks
-12%synergy
Chronicle of Victory
9.1%inclusion1 decks11 decks
6%synergy
Ashnod's Altar
6.9%inclusion2 decks29 decks
-13%synergy
Horn of the Mark
6.9%inclusion2 decks29 decks
7%synergy
Pyre of Heroes
6.9%inclusion2 decks29 decks
7%synergy
Recon Craft Theta
6.9%inclusion2 decks29 decks
7%synergy
Thornbite Staff
6.9%inclusion2 decks29 decks
4%synergy
Nutrient Block
5.3%inclusion1 decks19 decks
5%synergy
Enchantments
Necrogen Communion
48%inclusion14 decks29 decks
47%synergy
Phyresis
34%inclusion10 decks29 decks
32%synergy
Phyrexian Arena
24%inclusion7 decks29 decks
-16%synergy
Tribute to Horobi
21%inclusion6 decks29 decks
20%synergy
Bad Moon
21%inclusion6 decks29 decks
17%synergy
Vampiric Rites
17%inclusion5 decks29 decks
11%synergy
Cover of Darkness
17%inclusion5 decks29 decks
14%synergy
Oversold Cemetery
17%inclusion5 decks29 decks
12%synergy
Black Market
14%inclusion4 decks29 decks
-7%synergy
Lord Skitter's Blessing
14%inclusion4 decks29 decks
13%synergy
Haunted One
10%inclusion3 decks29 decks
8%synergy
Relic Putrescence
10%inclusion3 decks29 decks
10%synergy
Intimidation
10%inclusion3 decks29 decks
10%synergy
Bastion of Remembrance
10%inclusion3 decks29 decks
-7%synergy
Greed
6.9%inclusion2 decks29 decks
0%synergy
Glistening Oil
6.9%inclusion2 decks29 decks
6%synergy
Phyrexian Reclamation
6.9%inclusion2 decks29 decks
-3%synergy
Chthonian Nightmare
6.9%inclusion2 decks29 decks
3%synergy
Painful Quandary
6.9%inclusion2 decks29 decks
-3%synergy
Sothera, the Supervoid
5.3%inclusion1 decks19 decks
2%synergy
Planeswalkers
Vraska, Betrayal's Sting
14%inclusion4 decks29 decks
11%synergy
Liliana of the Dark Realms
10%inclusion3 decks29 decks
-4%synergy
Ob Nixilis Reignited
6.9%inclusion2 decks29 decks
5%synergy
Utility Lands
Mudflat Village
48%inclusion14 decks29 decks
46%synergy
Rogue's Passage
45%inclusion13 decks29 decks
26%synergy
Karn's Bastion
45%inclusion13 decks29 decks
41%synergy
Mortuary Mire
38%inclusion11 decks29 decks
25%synergy
Bojuka Bog
34%inclusion10 decks29 decks
-12%synergy
Witch's Cottage
24%inclusion7 decks29 decks
0%synergy
Barren Moor
21%inclusion6 decks29 decks
11%synergy
Memorial to Folly
17%inclusion5 decks29 decks
14%synergy
Swarmyard
17%inclusion5 decks29 decks
12%synergy
Access Tunnel
17%inclusion5 decks29 decks
14%synergy
Temple of the False God
14%inclusion4 decks29 decks
6%synergy
Subterranean Hangar
6.9%inclusion2 decks29 decks
7%synergy
Haunted Fengraf
6.9%inclusion2 decks29 decks
6%synergy
Reliquary Tower
6.9%inclusion2 decks29 decks
-23%synergy
Mana Artifacts
Sol Ring
76%inclusion22 decks29 decks
-10%synergy
Arcane Signet
52%inclusion15 decks29 decks
-10%synergy
Heraldic Banner
45%inclusion13 decks29 decks
39%synergy
Charcoal Diamond
41%inclusion12 decks29 decks
19%synergy
Mind Stone
38%inclusion11 decks29 decks
9%synergy
Patchwork Banner
17%inclusion5 decks29 decks
13%synergy
Phyrexian Atlas
17%inclusion5 decks29 decks
17%synergy
Commander's Sphere
14%inclusion4 decks29 decks
5%synergy
Worn Powerstone
14%inclusion4 decks29 decks
10%synergy
Thought Vessel
10%inclusion3 decks29 decks
-15%synergy
Caged Sun
6.9%inclusion2 decks29 decks
-4%synergy
Staff of Compleation
6.9%inclusion2 decks29 decks
5%synergy
All-Fates Scroll
5.3%inclusion1 decks19 decks
5%synergy
The Soul Stone
5.3%inclusion1 decks19 decks
-9%synergy
Lands
Swamp
100%inclusion29 decks29 decks
5%synergy
Path of Ancestry
34%inclusion10 decks29 decks
29%synergy
Big Apple, 3 a.m.
22%inclusion2 decks9 decks
20%synergy
Myriad Landscape
21%inclusion6 decks29 decks
-5%synergy
Command Tower
14%inclusion4 decks29 decks
8%synergy
Terramorphic Expanse
14%inclusion4 decks29 decks
11%synergy
Daily Bugle Building
11%inclusion2 decks18 decks
11%synergy
Mirrex
6.9%inclusion2 decks29 decks
6%synergy
Ash Barrens
6.9%inclusion2 decks29 decks
6%synergy
Demolition Field
6.9%inclusion2 decks29 decks
2%synergy
Evolving Wilds
6.9%inclusion2 decks29 decks
3%synergy
Vibrant Cityscape
5.6%inclusion1 decks18 decks
5%synergy
Command Bridge
5.3%inclusion1 decks19 decks
5%synergy
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