Karumonix, the Rat King (Commander) - Budget Upgraded

Karumonix, the Rat King
Rank #393
31decks
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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Sorceries
Utility Artifacts
Enchantments
Planeswalkers
Utility Lands
Mana Artifacts
Lands
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Send in the Pest
11%inclusion1 decks9 decks
9%synergy
Pull from the Grave
10%inclusion1 decks10 decks
9%synergy
High Synergy Cards
Blightbelly Rat
94%inclusion29 decks31 decks
90%synergy
Typhoid Rats
94%inclusion29 decks31 decks
90%synergy
Lord Skitter's Butcher
84%inclusion26 decks31 decks
81%synergy
Piper of the Swarm
84%inclusion26 decks31 decks
77%synergy
Rancid Rats
77%inclusion24 decks31 decks
75%synergy
Infectious Inquiry
77%inclusion24 decks31 decks
75%synergy
Tangled Colony
77%inclusion24 decks31 decks
74%synergy
Vraska's Fall
77%inclusion24 decks31 decks
74%synergy
Ogre Slumlord
84%inclusion26 decks31 decks
74%synergy
Septic Rats
74%inclusion23 decks31 decks
72%synergy
Top Cards
Lord Skitter, Sewer King
77%inclusion24 decks31 decks
69%synergy
Ichor Rats
74%inclusion23 decks31 decks
71%synergy
Voracious Vermin
74%inclusion23 decks31 decks
71%synergy
Pack Rat
71%inclusion22 decks31 decks
65%synergy
Drown in Ichor
71%inclusion22 decks31 decks
67%synergy
Marrow-Gnawer
68%inclusion21 decks31 decks
64%synergy
Persistent Marshstalker
68%inclusion21 decks31 decks
65%synergy
Crypt Rats
65%inclusion20 decks31 decks
60%synergy
Undercity Dire Rat
63%inclusion15 decks24 decks
61%synergy
Whisper of the Dross
61%inclusion19 decks31 decks
59%synergy
Game Changers
Bolas's Citadel
23%inclusion7 decks31 decks
-6%synergy
Creatures
Burglar Rat
61%inclusion19 decks31 decks
51%synergy
Chittering Skitterling
58%inclusion18 decks31 decks
57%synergy
Rat King, Pale Piper
55%inclusion6 decks11 decks
50%synergy
Rat King, Verminister
55%inclusion6 decks11 decks
51%synergy
Gnat Miser
52%inclusion16 decks31 decks
49%synergy
Stronghold Rats
52%inclusion16 decks31 decks
48%synergy
Changeling Outcast
48%inclusion15 decks31 decks
43%synergy
Nezumi Cutthroat
48%inclusion15 decks31 decks
48%synergy
Ruin Rat
48%inclusion15 decks31 decks
47%synergy
Pestilence Rats
45%inclusion14 decks31 decks
43%synergy
Twisted Sewer-Witch
39%inclusion12 decks31 decks
37%synergy
Nezumi Informant
39%inclusion12 decks31 decks
32%synergy
Swarm of Rats
39%inclusion12 decks31 decks
36%synergy
Drainpipe Vermin
39%inclusion12 decks31 decks
37%synergy
Ravenous Rats
39%inclusion12 decks31 decks
37%synergy
Chittering Witch
39%inclusion12 decks31 decks
34%synergy
Nezumi Prowler
39%inclusion12 decks31 decks
37%synergy
Wave of Rats
39%inclusion12 decks31 decks
37%synergy
Razortooth Rats
35%inclusion11 decks31 decks
35%synergy
Engine Rat
35%inclusion11 decks31 decks
34%synergy
Gnawing Vermin
35%inclusion11 decks31 decks
34%synergy
Rotting Rats
32%inclusion10 decks31 decks
29%synergy
Ratcatcher
29%inclusion9 decks31 decks
26%synergy
Rat Colony
29%inclusion9 decks31 decks
23%synergy
Ink-Eyes, Servant of Oni
29%inclusion9 decks31 decks
26%synergy
Splinter, Hamato Yoshi
27%inclusion3 decks11 decks
27%synergy
Valley Rotcaller
26%inclusion8 decks31 decks
23%synergy
Refurbished Familiar
26%inclusion8 decks31 decks
24%synergy
Ayara, First of Locthwain
26%inclusion8 decks31 decks
0%synergy
Gray Merchant of Asphodel
23%inclusion7 decks31 decks
-28%synergy
Throat Slitter
23%inclusion7 decks31 decks
21%synergy
Chittering Rats
19%inclusion6 decks31 decks
19%synergy
Innocuous Rat
19%inclusion6 decks31 decks
18%synergy
Nezumi Graverobber
19%inclusion6 decks31 decks
18%synergy
Mukotai Ambusher
19%inclusion6 decks31 decks
19%synergy
Nezumi Bladeblesser
19%inclusion6 decks31 decks
19%synergy
Bog Rats
19%inclusion6 decks31 decks
19%synergy
Adaptive Automaton
19%inclusion6 decks31 decks
18%synergy
Skullsnatcher
16%inclusion5 decks31 decks
15%synergy
Old Flitterfang
16%inclusion5 decks31 decks
15%synergy
Nashi, Moon Sage's Scion
16%inclusion5 decks31 decks
12%synergy
Changeling Wayfinder
15%inclusion2 decks13 decks
15%synergy
Elephant-Rat
14%inclusion3 decks21 decks
14%synergy
Patron of the Nezumi
13%inclusion4 decks31 decks
12%synergy
Thornplate Intimidator
13%inclusion4 decks31 decks
12%synergy
Nezumi Shortfang
13%inclusion4 decks31 decks
12%synergy
Bloodline Pretender
13%inclusion4 decks31 decks
12%synergy
Sinuous Vermin
13%inclusion4 decks31 decks
12%synergy
Sewer Rats
13%inclusion4 decks31 decks
13%synergy
Nezumi Bone-Reader
13%inclusion4 decks31 decks
12%synergy
Instants
Dark Ritual
55%inclusion17 decks31 decks
-12%synergy
Village Rites
48%inclusion15 decks31 decks
23%synergy
Grim Affliction
48%inclusion15 decks31 decks
47%synergy
Deadly Dispute
42%inclusion13 decks31 decks
16%synergy
Rat Out
39%inclusion12 decks31 decks
37%synergy
Murder
35%inclusion11 decks31 decks
26%synergy
Hero's Downfall
26%inclusion8 decks31 decks
19%synergy
Go for the Throat
26%inclusion8 decks31 decks
3%synergy
Defile
23%inclusion7 decks31 decks
-13%synergy
Consuming Corruption
23%inclusion7 decks31 decks
7%synergy
Virulent Wound
19%inclusion6 decks31 decks
19%synergy
Tragic Slip
19%inclusion6 decks31 decks
-0%synergy
Raise the Draugr
19%inclusion6 decks31 decks
18%synergy
Anoint with Affliction
16%inclusion5 decks31 decks
16%synergy
Drag to the Underworld
16%inclusion5 decks31 decks
15%synergy
Tainted Strike
16%inclusion5 decks31 decks
13%synergy
Corrupted Conviction
16%inclusion5 decks31 decks
4%synergy
Fake Your Own Death
16%inclusion5 decks31 decks
9%synergy
Altar's Reap
13%inclusion4 decks31 decks
10%synergy
Infernal Grasp
13%inclusion4 decks31 decks
-12%synergy
Doom Blade
13%inclusion4 decks31 decks
6%synergy
Gravepurge
13%inclusion4 decks31 decks
11%synergy
Foul-Tongue Shriek
10%inclusion3 decks31 decks
8%synergy
Breathe Your Last
10%inclusion3 decks31 decks
8%synergy
Not Dead After All
10%inclusion3 decks31 decks
-2%synergy
Undying Malice
10%inclusion3 decks31 decks
-0%synergy
Archenemy's Charm
10%inclusion2 decks21 decks
1%synergy
Pain 101
9.1%inclusion1 decks11 decks
8%synergy
Hazel's Nocturne
6.5%inclusion2 decks31 decks
6%synergy
Give In to Violence
6.5%inclusion2 decks31 decks
6%synergy
Consumed by Greed
6.5%inclusion2 decks31 decks
5%synergy
Offer Immortality
6.5%inclusion2 decks31 decks
4%synergy
Imp's Mischief
6.5%inclusion2 decks31 decks
-18%synergy
Supernatural Stamina
6.5%inclusion2 decks31 decks
-1%synergy
Nameless Inversion
6.5%inclusion2 decks31 decks
6%synergy
Withering Torment
6.5%inclusion2 decks31 decks
-25%synergy
Sorceries
Revenge of the Rats
58%inclusion18 decks31 decks
55%synergy
Diabolic Tutor
42%inclusion13 decks31 decks
28%synergy
Spread the Sickness
42%inclusion13 decks31 decks
41%synergy
Crippling Fear
42%inclusion13 decks31 decks
39%synergy
Vat Emergence
39%inclusion12 decks31 decks
37%synergy
Feed the Swarm
35%inclusion11 decks31 decks
-15%synergy
Sign in Blood
32%inclusion10 decks31 decks
-3%synergy
Victimize
26%inclusion8 decks31 decks
-1%synergy
Night's Whisper
26%inclusion8 decks31 decks
1%synergy
Read the Bones
26%inclusion8 decks31 decks
9%synergy
Unearth
23%inclusion7 decks31 decks
14%synergy
Feed the Infection
19%inclusion6 decks31 decks
19%synergy
Return from Extinction
19%inclusion6 decks31 decks
19%synergy
Mutilate
19%inclusion6 decks31 decks
3%synergy
Caress of Phyrexia
16%inclusion5 decks31 decks
15%synergy
Syphon Mind
16%inclusion5 decks31 decks
4%synergy
Geth's Summons
16%inclusion5 decks31 decks
16%synergy
Predators' Hour
16%inclusion5 decks31 decks
15%synergy
Swarmyard Massacre
16%inclusion5 decks31 decks
14%synergy
Eaten Alive
16%inclusion5 decks31 decks
13%synergy
Phyresis Outbreak
16%inclusion5 decks31 decks
14%synergy
Bloodline Bidding
15%inclusion2 decks13 decks
11%synergy
Decree of Pain
13%inclusion4 decks31 decks
8%synergy
Forever Young
13%inclusion4 decks31 decks
11%synergy
Lab Rats
13%inclusion4 decks31 decks
12%synergy
Toxic Deluge
10%inclusion3 decks31 decks
-27%synergy
Patriarch's Bidding
10%inclusion3 decks31 decks
6%synergy
Profane Command
10%inclusion3 decks31 decks
8%synergy
Kindred Dominance
10%inclusion3 decks31 decks
5%synergy
Strategic Betrayal
6.9%inclusion2 decks29 decks
6%synergy
Profane Tutor
6.5%inclusion2 decks31 decks
2%synergy
March of the Returned
6.5%inclusion2 decks31 decks
6%synergy
Echoing Return
6.5%inclusion2 decks31 decks
3%synergy
Exsanguinate
6.5%inclusion2 decks31 decks
-18%synergy
Ambition's Cost
6.5%inclusion2 decks31 decks
4%synergy
Fell
6.5%inclusion2 decks31 decks
3%synergy
Pact of the Serpent
6.5%inclusion2 decks31 decks
5%synergy
Haunting Voyage
6.5%inclusion2 decks31 decks
5%synergy
Dirge of Dread
6.5%inclusion2 decks31 decks
6%synergy
Bone Splinters
6.5%inclusion2 decks31 decks
5%synergy
Command the Dreadhorde
6.5%inclusion2 decks31 decks
5%synergy
Ancient Craving
6.5%inclusion2 decks31 decks
4%synergy
Living Death
6.5%inclusion2 decks31 decks
-4%synergy
In Garruk's Wake
6.5%inclusion2 decks31 decks
3%synergy
Gruesome Fate
6.5%inclusion2 decks31 decks
4%synergy
Utility Artifacts
Bontu's Monument
61%inclusion19 decks31 decks
33%synergy
Herald's Horn
45%inclusion14 decks31 decks
39%synergy
Contagion Clasp
42%inclusion13 decks31 decks
40%synergy
Swiftfoot Boots
26%inclusion8 decks31 decks
-6%synergy
Icon of Ancestry
26%inclusion8 decks31 decks
25%synergy
Jet Medallion
26%inclusion8 decks31 decks
-36%synergy
Wayfarer's Bauble
19%inclusion6 decks31 decks
4%synergy
Vanquisher's Banner
19%inclusion6 decks31 decks
15%synergy
Gathering Stone
15%inclusion2 decks13 decks
14%synergy
Hall of Triumph
13%inclusion4 decks31 decks
13%synergy
Thieves' Tools
13%inclusion4 decks31 decks
11%synergy
Vat of Rebirth
10%inclusion3 decks31 decks
6%synergy
Grafted Exoskeleton
10%inclusion3 decks31 decks
9%synergy
Door of Destinies
10%inclusion3 decks31 decks
8%synergy
Skullclamp
10%inclusion3 decks31 decks
-13%synergy
Thornbite Staff
10%inclusion3 decks31 decks
7%synergy
Stalactite Dagger
7.7%inclusion1 decks13 decks
8%synergy
Heirloom Blade
6.5%inclusion2 decks31 decks
6%synergy
Prosthetic Injector
6.5%inclusion2 decks31 decks
6%synergy
Recon Craft Theta
6.5%inclusion2 decks31 decks
6%synergy
Lightning Greaves
6.5%inclusion2 decks31 decks
-27%synergy
Ashnod's Altar
6.5%inclusion2 decks31 decks
-13%synergy
Banner of Kinship
6.5%inclusion2 decks31 decks
4%synergy
Horn of the Mark
6.5%inclusion2 decks31 decks
6%synergy
Enchantments
Necrogen Communion
42%inclusion13 decks31 decks
40%synergy
Phyresis
32%inclusion10 decks31 decks
30%synergy
Cover of Darkness
23%inclusion7 decks31 decks
20%synergy
Tribute to Horobi
19%inclusion6 decks31 decks
18%synergy
Black Market
19%inclusion6 decks31 decks
-1%synergy
Phyrexian Arena
16%inclusion5 decks31 decks
-23%synergy
Bad Moon
16%inclusion5 decks31 decks
13%synergy
Lord Skitter's Blessing
13%inclusion4 decks31 decks
12%synergy
Haunted One
13%inclusion4 decks31 decks
10%synergy
Oversold Cemetery
13%inclusion4 decks31 decks
8%synergy
Vampiric Rites
10%inclusion3 decks31 decks
4%synergy
Intimidation
10%inclusion3 decks31 decks
9%synergy
Mornsong Aria
7.7%inclusion1 decks13 decks
6%synergy
Kaya's Ghostform
6.5%inclusion2 decks31 decks
-4%synergy
Bastion of Remembrance
6.5%inclusion2 decks31 decks
-11%synergy
Glistening Oil
6.5%inclusion2 decks31 decks
6%synergy
Relic Putrescence
6.5%inclusion2 decks31 decks
6%synergy
Okiba Reckoner Raid
6.5%inclusion2 decks31 decks
6%synergy
Phyrexian Reclamation
6.5%inclusion2 decks31 decks
-3%synergy
Planeswalkers
Vraska, Betrayal's Sting
26%inclusion8 decks31 decks
23%synergy
Liliana of the Dark Realms
13%inclusion4 decks31 decks
-1%synergy
Utility Lands
Mudflat Village
55%inclusion17 decks31 decks
52%synergy
Rogue's Passage
48%inclusion15 decks31 decks
29%synergy
Karn's Bastion
45%inclusion14 decks31 decks
41%synergy
Mortuary Mire
39%inclusion12 decks31 decks
26%synergy
Bojuka Bog
39%inclusion12 decks31 decks
-8%synergy
Swarmyard
29%inclusion9 decks31 decks
23%synergy
Access Tunnel
23%inclusion7 decks31 decks
20%synergy
Barren Moor
23%inclusion7 decks31 decks
13%synergy
Witch's Cottage
19%inclusion6 decks31 decks
-5%synergy
Memorial to Folly
16%inclusion5 decks31 decks
13%synergy
Temple of the False God
16%inclusion5 decks31 decks
8%synergy
Reliquary Tower
13%inclusion4 decks31 decks
-17%synergy
Subterranean Hangar
6.5%inclusion2 decks31 decks
6%synergy
Thespian's Stage
6.5%inclusion2 decks31 decks
1%synergy
Haunted Fengraf
6.5%inclusion2 decks31 decks
6%synergy
Mana Artifacts
Sol Ring
74%inclusion23 decks31 decks
-11%synergy
Arcane Signet
52%inclusion16 decks31 decks
-10%synergy
Charcoal Diamond
35%inclusion11 decks31 decks
13%synergy
Heraldic Banner
32%inclusion10 decks31 decks
27%synergy
Mind Stone
32%inclusion10 decks31 decks
4%synergy
Patchwork Banner
16%inclusion5 decks31 decks
12%synergy
Thought Vessel
13%inclusion4 decks31 decks
-12%synergy
Phyrexian Atlas
13%inclusion4 decks31 decks
13%synergy
Commander's Sphere
10%inclusion3 decks31 decks
1%synergy
Worn Powerstone
10%inclusion3 decks31 decks
5%synergy
Caged Sun
6.5%inclusion2 decks31 decks
-4%synergy
Lands
Swamp
100%inclusion31 decks31 decks
5%synergy
Path of Ancestry
42%inclusion13 decks31 decks
37%synergy
Command Tower
23%inclusion7 decks31 decks
17%synergy
Myriad Landscape
23%inclusion7 decks31 decks
-2%synergy
Big Apple, 3 a.m.
18%inclusion2 decks11 decks
16%synergy
Terramorphic Expanse
13%inclusion4 decks31 decks
10%synergy
Daily Bugle Building
10%inclusion2 decks20 decks
9%synergy
Evolving Wilds
6.5%inclusion2 decks31 decks
3%synergy
Ash Barrens
6.5%inclusion2 decks31 decks
5%synergy
Demolition Field
6.5%inclusion2 decks31 decks
1%synergy
Mirrex
6.5%inclusion2 decks31 decks
6%synergy
Vibrant Cityscape
5.0%inclusion1 decks20 decks
4%synergy
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