Karumonix, the Rat King (Commander) - Budget Upgraded

Karumonix, the Rat King
Rank #384
27decks
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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Enchantments
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Utility Lands
Mana Artifacts
Lands
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Rat King, Pale Piper
33%inclusion2 decks6 decks
29%synergy
Rat King, Verminister
17%inclusion1 decks6 decks
14%synergy
Splinter, Hamato Yoshi
17%inclusion1 decks6 decks
16%synergy
Big Apple, 3 a.m.
17%inclusion1 decks6 decks
15%synergy
Tunnel Rats
17%inclusion1 decks6 decks
16%synergy
High Synergy Cards
Blightbelly Rat
93%inclusion25 decks27 decks
89%synergy
Typhoid Rats
93%inclusion25 decks27 decks
89%synergy
Ichor Rats
85%inclusion23 decks27 decks
82%synergy
Ogre Slumlord
89%inclusion24 decks27 decks
79%synergy
Infectious Inquiry
81%inclusion22 decks27 decks
79%synergy
Rancid Rats
78%inclusion21 decks27 decks
75%synergy
Lord Skitter's Butcher
78%inclusion21 decks27 decks
74%synergy
Vraska's Fall
78%inclusion21 decks27 decks
74%synergy
Drown in Ichor
78%inclusion21 decks27 decks
74%synergy
Lord Skitter, Sewer King
81%inclusion22 decks27 decks
73%synergy
Top Cards
Piper of the Swarm
78%inclusion21 decks27 decks
71%synergy
Tangled Colony
74%inclusion20 decks27 decks
71%synergy
Septic Rats
74%inclusion20 decks27 decks
72%synergy
Voracious Vermin
74%inclusion20 decks27 decks
71%synergy
Pack Rat
70%inclusion19 decks27 decks
64%synergy
Crypt Rats
67%inclusion18 decks27 decks
62%synergy
Marrow-Gnawer
67%inclusion18 decks27 decks
63%synergy
Whisper of the Dross
63%inclusion17 decks27 decks
60%synergy
Revenge of the Rats
59%inclusion16 decks27 decks
56%synergy
Burglar Rat
59%inclusion16 decks27 decks
48%synergy
Game Changers
Bolas's Citadel
22%inclusion6 decks27 decks
-6%synergy
Creatures
Persistent Marshstalker
59%inclusion16 decks27 decks
56%synergy
Chittering Skitterling
59%inclusion16 decks27 decks
58%synergy
Gnat Miser
56%inclusion15 decks27 decks
53%synergy
Stronghold Rats
52%inclusion14 decks27 decks
48%synergy
Undercity Dire Rat
50%inclusion10 decks20 decks
48%synergy
Pestilence Rats
48%inclusion13 decks27 decks
46%synergy
Swarm of Rats
44%inclusion12 decks27 decks
42%synergy
Changeling Outcast
44%inclusion12 decks27 decks
39%synergy
Ruin Rat
44%inclusion12 decks27 decks
43%synergy
Chittering Witch
44%inclusion12 decks27 decks
40%synergy
Twisted Sewer-Witch
44%inclusion12 decks27 decks
43%synergy
Ravenous Rats
41%inclusion11 decks27 decks
39%synergy
Gnawing Vermin
41%inclusion11 decks27 decks
39%synergy
Nezumi Cutthroat
41%inclusion11 decks27 decks
40%synergy
Razortooth Rats
37%inclusion10 decks27 decks
36%synergy
Nezumi Prowler
33%inclusion9 decks27 decks
32%synergy
Drainpipe Vermin
33%inclusion9 decks27 decks
32%synergy
Wave of Rats
33%inclusion9 decks27 decks
31%synergy
Engine Rat
30%inclusion8 decks27 decks
28%synergy
Ratcatcher
30%inclusion8 decks27 decks
26%synergy
Refurbished Familiar
26%inclusion7 decks27 decks
24%synergy
Gray Merchant of Asphodel
26%inclusion7 decks27 decks
-25%synergy
Rotting Rats
26%inclusion7 decks27 decks
23%synergy
Ayara, First of Locthwain
26%inclusion7 decks27 decks
0%synergy
Nezumi Informant
26%inclusion7 decks27 decks
19%synergy
Bog Rats
22%inclusion6 decks27 decks
22%synergy
Chittering Rats
22%inclusion6 decks27 decks
22%synergy
Nezumi Graverobber
22%inclusion6 decks27 decks
21%synergy
Ink-Eyes, Servant of Oni
22%inclusion6 decks27 decks
19%synergy
Valley Rotcaller
22%inclusion6 decks27 decks
20%synergy
Rat Colony
22%inclusion6 decks27 decks
17%synergy
Innocuous Rat
19%inclusion5 decks27 decks
17%synergy
Adaptive Automaton
19%inclusion5 decks27 decks
17%synergy
Nezumi Bladeblesser
19%inclusion5 decks27 decks
18%synergy
Throat Slitter
19%inclusion5 decks27 decks
17%synergy
Nashi, Moon Sage's Scion
19%inclusion5 decks27 decks
15%synergy
Old Flitterfang
19%inclusion5 decks27 decks
17%synergy
Relentless Rats
15%inclusion4 decks27 decks
13%synergy
Bloodline Pretender
15%inclusion4 decks27 decks
14%synergy
Sinuous Vermin
15%inclusion4 decks27 decks
14%synergy
Mukotai Ambusher
15%inclusion4 decks27 decks
14%synergy
Sewer Rats
15%inclusion4 decks27 decks
15%synergy
Gulping Scraptrap
15%inclusion4 decks27 decks
14%synergy
Elephant-Rat
12%inclusion2 decks17 decks
11%synergy
Plague Stinger
11%inclusion3 decks27 decks
10%synergy
Graveshifter
11%inclusion3 decks27 decks
10%synergy
Thornplate Intimidator
11%inclusion3 decks27 decks
10%synergy
Skullsnatcher
11%inclusion3 decks27 decks
10%synergy
Ruthless Radrat
11%inclusion3 decks27 decks
10%synergy
Daggerfang Duo
11%inclusion3 decks27 decks
10%synergy
Instants
Grim Affliction
52%inclusion14 decks27 decks
50%synergy
Dark Ritual
48%inclusion13 decks27 decks
-18%synergy
Village Rites
48%inclusion13 decks27 decks
23%synergy
Deadly Dispute
44%inclusion12 decks27 decks
19%synergy
Rat Out
41%inclusion11 decks27 decks
39%synergy
Murder
37%inclusion10 decks27 decks
27%synergy
Go for the Throat
33%inclusion9 decks27 decks
10%synergy
Hero's Downfall
30%inclusion8 decks27 decks
23%synergy
Corrupted Conviction
30%inclusion8 decks27 decks
17%synergy
Anoint with Affliction
26%inclusion7 decks27 decks
25%synergy
Virulent Wound
22%inclusion6 decks27 decks
22%synergy
Infernal Grasp
22%inclusion6 decks27 decks
-3%synergy
Raise the Draugr
22%inclusion6 decks27 decks
21%synergy
Consuming Corruption
19%inclusion5 decks27 decks
3%synergy
Drag to the Underworld
19%inclusion5 decks27 decks
17%synergy
Defile
19%inclusion5 decks27 decks
-18%synergy
Altar's Reap
19%inclusion5 decks27 decks
16%synergy
Not Dead After All
15%inclusion4 decks27 decks
4%synergy
Fake Your Own Death
15%inclusion4 decks27 decks
8%synergy
Tragic Slip
15%inclusion4 decks27 decks
-5%synergy
Tainted Strike
15%inclusion4 decks27 decks
12%synergy
Doom Blade
11%inclusion3 decks27 decks
4%synergy
Breathe Your Last
11%inclusion3 decks27 decks
9%synergy
Foul-Tongue Shriek
11%inclusion3 decks27 decks
9%synergy
Hazel's Nocturne
7.4%inclusion2 decks27 decks
7%synergy
Imp's Mischief
7.4%inclusion2 decks27 decks
-17%synergy
Consumed by Greed
7.4%inclusion2 decks27 decks
6%synergy
Gravepurge
7.4%inclusion2 decks27 decks
6%synergy
Withering Torment
7.4%inclusion2 decks27 decks
-24%synergy
Nasty End
7.4%inclusion2 decks27 decks
4%synergy
Undying Malice
7.4%inclusion2 decks27 decks
-2%synergy
Archenemy's Charm
5.9%inclusion1 decks17 decks
-3%synergy
Scorpion's Sting
5.9%inclusion1 decks17 decks
6%synergy
Vayne's Treachery
5.0%inclusion1 decks20 decks
4%synergy
Sorceries
Spread the Sickness
44%inclusion12 decks27 decks
44%synergy
Diabolic Tutor
44%inclusion12 decks27 decks
30%synergy
Feed the Swarm
44%inclusion12 decks27 decks
-6%synergy
Sign in Blood
44%inclusion12 decks27 decks
9%synergy
Vat Emergence
41%inclusion11 decks27 decks
39%synergy
Crippling Fear
37%inclusion10 decks27 decks
34%synergy
Read the Bones
33%inclusion9 decks27 decks
16%synergy
Victimize
30%inclusion8 decks27 decks
3%synergy
Night's Whisper
30%inclusion8 decks27 decks
5%synergy
Feed the Infection
26%inclusion7 decks27 decks
25%synergy
Unearth
26%inclusion7 decks27 decks
17%synergy
Mutilate
19%inclusion5 decks27 decks
1%synergy
Caress of Phyrexia
19%inclusion5 decks27 decks
18%synergy
Return from Extinction
15%inclusion4 decks27 decks
14%synergy
Phyresis Outbreak
15%inclusion4 decks27 decks
13%synergy
Predators' Hour
15%inclusion4 decks27 decks
14%synergy
Swarmyard Massacre
15%inclusion4 decks27 decks
12%synergy
Geth's Summons
15%inclusion4 decks27 decks
14%synergy
Lab Rats
15%inclusion4 decks27 decks
14%synergy
Bloodline Bidding
13%inclusion1 decks8 decks
8%synergy
Patriarch's Bidding
11%inclusion3 decks27 decks
7%synergy
Forever Young
11%inclusion3 decks27 decks
10%synergy
Syphon Mind
11%inclusion3 decks27 decks
-1%synergy
Eaten Alive
11%inclusion3 decks27 decks
8%synergy
Decree of Pain
11%inclusion3 decks27 decks
6%synergy
Kindred Dominance
11%inclusion3 decks27 decks
6%synergy
Strategic Betrayal
7.7%inclusion2 decks26 decks
7%synergy
Command the Dreadhorde
7.4%inclusion2 decks27 decks
6%synergy
Bone Splinters
7.4%inclusion2 decks27 decks
6%synergy
Profane Tutor
7.4%inclusion2 decks27 decks
3%synergy
March of the Returned
7.4%inclusion2 decks27 decks
7%synergy
Ancient Craving
7.4%inclusion2 decks27 decks
5%synergy
Exsanguinate
7.4%inclusion2 decks27 decks
-17%synergy
Ambition's Cost
7.4%inclusion2 decks27 decks
4%synergy
Profane Command
7.4%inclusion2 decks27 decks
5%synergy
Gruesome Fate
7.4%inclusion2 decks27 decks
5%synergy
Fell
7.4%inclusion2 decks27 decks
4%synergy
In Garruk's Wake
7.4%inclusion2 decks27 decks
3%synergy
Annihilating Glare
7.4%inclusion2 decks27 decks
6%synergy
Embrace Oblivion
5.9%inclusion1 decks17 decks
5%synergy
Resentful Revelation
5.0%inclusion1 decks20 decks
3%synergy
Utility Artifacts
Bontu's Monument
52%inclusion14 decks27 decks
24%synergy
Contagion Clasp
44%inclusion12 decks27 decks
42%synergy
Herald's Horn
44%inclusion12 decks27 decks
39%synergy
Icon of Ancestry
37%inclusion10 decks27 decks
36%synergy
Vanquisher's Banner
26%inclusion7 decks27 decks
22%synergy
Swiftfoot Boots
26%inclusion7 decks27 decks
-6%synergy
Jet Medallion
22%inclusion6 decks27 decks
-39%synergy
Wayfarer's Bauble
19%inclusion5 decks27 decks
3%synergy
Hall of Triumph
15%inclusion4 decks27 decks
14%synergy
Grafted Exoskeleton
15%inclusion4 decks27 decks
14%synergy
Thieves' Tools
15%inclusion4 decks27 decks
13%synergy
Vat of Rebirth
11%inclusion3 decks27 decks
8%synergy
Door of Destinies
11%inclusion3 decks27 decks
9%synergy
Skullclamp
11%inclusion3 decks27 decks
-11%synergy
Prosthetic Injector
11%inclusion3 decks27 decks
11%synergy
Pyre of Heroes
7.4%inclusion2 decks27 decks
7%synergy
Ashnod's Altar
7.4%inclusion2 decks27 decks
-12%synergy
Recon Craft Theta
7.4%inclusion2 decks27 decks
7%synergy
Horn of the Mark
7.4%inclusion2 decks27 decks
7%synergy
Thornbite Staff
7.4%inclusion2 decks27 decks
5%synergy
Nutrient Block
5.9%inclusion1 decks17 decks
6%synergy
Enchantments
Necrogen Communion
48%inclusion13 decks27 decks
46%synergy
Phyresis
37%inclusion10 decks27 decks
35%synergy
Phyrexian Arena
26%inclusion7 decks27 decks
-14%synergy
Tribute to Horobi
22%inclusion6 decks27 decks
21%synergy
Bad Moon
22%inclusion6 decks27 decks
19%synergy
Cover of Darkness
19%inclusion5 decks27 decks
16%synergy
Black Market
15%inclusion4 decks27 decks
-6%synergy
Vampiric Rites
15%inclusion4 decks27 decks
9%synergy
Oversold Cemetery
15%inclusion4 decks27 decks
9%synergy
Lord Skitter's Blessing
15%inclusion4 decks27 decks
14%synergy
Bastion of Remembrance
11%inclusion3 decks27 decks
-6%synergy
Haunted One
11%inclusion3 decks27 decks
8%synergy
Relic Putrescence
11%inclusion3 decks27 decks
11%synergy
Intimidation
11%inclusion3 decks27 decks
11%synergy
Greed
7.4%inclusion2 decks27 decks
1%synergy
Okiba Reckoner Raid
7.4%inclusion2 decks27 decks
7%synergy
Glistening Oil
7.4%inclusion2 decks27 decks
7%synergy
Phyrexian Reclamation
7.4%inclusion2 decks27 decks
-3%synergy
Chthonian Nightmare
7.4%inclusion2 decks27 decks
4%synergy
Sothera, the Supervoid
5.9%inclusion1 decks17 decks
3%synergy
Planeswalkers
Vraska, Betrayal's Sting
15%inclusion4 decks27 decks
12%synergy
Liliana of the Dark Realms
11%inclusion3 decks27 decks
-3%synergy
Ob Nixilis Reignited
7.4%inclusion2 decks27 decks
5%synergy
Utility Lands
Karn's Bastion
48%inclusion13 decks27 decks
44%synergy
Mudflat Village
48%inclusion13 decks27 decks
45%synergy
Rogue's Passage
48%inclusion13 decks27 decks
29%synergy
Mortuary Mire
37%inclusion10 decks27 decks
24%synergy
Bojuka Bog
33%inclusion9 decks27 decks
-14%synergy
Barren Moor
22%inclusion6 decks27 decks
12%synergy
Witch's Cottage
22%inclusion6 decks27 decks
-2%synergy
Swarmyard
19%inclusion5 decks27 decks
13%synergy
Memorial to Folly
15%inclusion4 decks27 decks
12%synergy
Temple of the False God
15%inclusion4 decks27 decks
7%synergy
Access Tunnel
15%inclusion4 decks27 decks
12%synergy
Subterranean Hangar
7.4%inclusion2 decks27 decks
7%synergy
Reliquary Tower
7.4%inclusion2 decks27 decks
-23%synergy
Haunted Fengraf
7.4%inclusion2 decks27 decks
7%synergy
Mana Artifacts
Sol Ring
74%inclusion20 decks27 decks
-12%synergy
Arcane Signet
48%inclusion13 decks27 decks
-14%synergy
Charcoal Diamond
44%inclusion12 decks27 decks
22%synergy
Heraldic Banner
41%inclusion11 decks27 decks
35%synergy
Mind Stone
37%inclusion10 decks27 decks
8%synergy
Patchwork Banner
19%inclusion5 decks27 decks
14%synergy
Phyrexian Atlas
19%inclusion5 decks27 decks
18%synergy
Commander's Sphere
15%inclusion4 decks27 decks
6%synergy
Thought Vessel
11%inclusion3 decks27 decks
-15%synergy
Worn Powerstone
11%inclusion3 decks27 decks
7%synergy
Caged Sun
7.4%inclusion2 decks27 decks
-4%synergy
Staff of Compleation
7.4%inclusion2 decks27 decks
6%synergy
All-Fates Scroll
5.9%inclusion1 decks17 decks
6%synergy
Lands
Swamp
100%inclusion27 decks27 decks
5%synergy
Path of Ancestry
37%inclusion10 decks27 decks
32%synergy
Myriad Landscape
22%inclusion6 decks27 decks
-3%synergy
Command Tower
15%inclusion4 decks27 decks
9%synergy
Daily Bugle Building
13%inclusion2 decks15 decks
13%synergy
Terramorphic Expanse
11%inclusion3 decks27 decks
8%synergy
Mirrex
7.4%inclusion2 decks27 decks
7%synergy
Evolving Wilds
7.4%inclusion2 decks27 decks
4%synergy
Ash Barrens
7.4%inclusion2 decks27 decks
6%synergy
Vibrant Cityscape
6.7%inclusion1 decks15 decks
6%synergy
Command Bridge
5.9%inclusion1 decks17 decks
6%synergy
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