Karumonix, the Rat King (Commander) - Budget Upgraded

Karumonix, the Rat King
Rank #407
35decks
As CommanderAs CardAverage DeckDecks
Bracket
All1234
5
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
94%inclusion33 decks35 decks
91%synergy
Typhoid Rats
89%inclusion31 decks35 decks
85%synergy
Lord Skitter's Butcher
80%inclusion28 decks35 decks
77%synergy
Ichor Rats
77%inclusion27 decks35 decks
74%synergy
Septic Rats
74%inclusion26 decks35 decks
73%synergy
Vraska's Fall
74%inclusion26 decks35 decks
71%synergy
Drown in Ichor
74%inclusion26 decks35 decks
71%synergy
Piper of the Swarm
77%inclusion27 decks35 decks
70%synergy
Rancid Rats
71%inclusion25 decks35 decks
69%synergy
Infectious Inquiry
71%inclusion25 decks35 decks
69%synergy
Top Cards
Ogre Slumlord
74%inclusion26 decks35 decks
65%synergy
Lord Skitter, Sewer King
74%inclusion26 decks35 decks
66%synergy
Pack Rat
74%inclusion26 decks35 decks
68%synergy
Voracious Vermin
69%inclusion24 decks35 decks
66%synergy
Whisper of the Dross
66%inclusion23 decks35 decks
63%synergy
Marrow-Gnawer
66%inclusion23 decks35 decks
62%synergy
Crypt Rats
66%inclusion23 decks35 decks
61%synergy
Tangled Colony
66%inclusion23 decks35 decks
63%synergy
Persistent Marshstalker
63%inclusion22 decks35 decks
60%synergy
Burglar Rat
60%inclusion21 decks35 decks
50%synergy
Game Changers
Bolas's Citadel
23%inclusion8 decks35 decks
-5%synergy
Creatures
Rat King, Pale Piper
58%inclusion7 decks12 decks
55%synergy
Gnat Miser
57%inclusion20 decks35 decks
54%synergy
Undercity Dire Rat
57%inclusion16 decks28 decks
55%synergy
Ravenous Rats
49%inclusion17 decks35 decks
47%synergy
Nezumi Cutthroat
49%inclusion17 decks35 decks
48%synergy
Chittering Skitterling
46%inclusion16 decks35 decks
45%synergy
Twisted Sewer-Witch
46%inclusion16 decks35 decks
44%synergy
Changeling Outcast
46%inclusion16 decks35 decks
41%synergy
Drainpipe Vermin
46%inclusion16 decks35 decks
44%synergy
Ruin Rat
46%inclusion16 decks35 decks
44%synergy
Wave of Rats
43%inclusion15 decks35 decks
41%synergy
Stronghold Rats
43%inclusion15 decks35 decks
39%synergy
Razortooth Rats
40%inclusion14 decks35 decks
39%synergy
Nezumi Informant
40%inclusion14 decks35 decks
34%synergy
Pestilence Rats
40%inclusion14 decks35 decks
38%synergy
Gnawing Vermin
37%inclusion13 decks35 decks
36%synergy
Engine Rat
37%inclusion13 decks35 decks
35%synergy
Rotting Rats
34%inclusion12 decks35 decks
31%synergy
Swarm of Rats
34%inclusion12 decks35 decks
32%synergy
Chittering Witch
34%inclusion12 decks35 decks
30%synergy
Nezumi Prowler
34%inclusion12 decks35 decks
33%synergy
Rat Colony
31%inclusion11 decks35 decks
26%synergy
Rat King, Verminister
31%inclusion4 decks13 decks
28%synergy
Ratcatcher
29%inclusion10 decks35 decks
25%synergy
Ayara, First of Locthwain
26%inclusion9 decks35 decks
1%synergy
Bog Rats
23%inclusion8 decks35 decks
22%synergy
Chittering Rats
23%inclusion8 decks35 decks
22%synergy
Nezumi Graverobber
23%inclusion8 decks35 decks
22%synergy
Gray Merchant of Asphodel
23%inclusion8 decks35 decks
-27%synergy
Ink-Eyes, Servant of Oni
23%inclusion8 decks35 decks
20%synergy
Valley Rotcaller
23%inclusion8 decks35 decks
20%synergy
Refurbished Familiar
20%inclusion7 decks35 decks
18%synergy
Throat Slitter
20%inclusion7 decks35 decks
18%synergy
Old Flitterfang
20%inclusion7 decks35 decks
19%synergy
Innocuous Rat
17%inclusion6 decks35 decks
16%synergy
Mukotai Ambusher
17%inclusion6 decks35 decks
16%synergy
Nezumi Bladeblesser
17%inclusion6 decks35 decks
17%synergy
Skullsnatcher
17%inclusion6 decks35 decks
17%synergy
Adaptive Automaton
17%inclusion6 decks35 decks
16%synergy
Locust Miser
17%inclusion6 decks35 decks
16%synergy
Nezumi Bone-Reader
17%inclusion6 decks35 decks
16%synergy
Splinter, Hamato Yoshi
17%inclusion2 decks12 decks
16%synergy
Elephant-Rat
16%inclusion4 decks25 decks
16%synergy
Gutter Skulk
14%inclusion5 decks35 decks
14%synergy
Nezumi Linkbreaker
14%inclusion5 decks35 decks
13%synergy
Muck Rats
14%inclusion5 decks35 decks
14%synergy
Sewer Rats
14%inclusion5 decks35 decks
14%synergy
Nashi, Moon Sage's Scion
14%inclusion5 decks35 decks
11%synergy
Patron of the Nezumi
11%inclusion4 decks35 decks
11%synergy
Relentless Rats
11%inclusion4 decks35 decks
10%synergy
Instants
Dark Ritual
57%inclusion20 decks35 decks
-10%synergy
Grim Affliction
49%inclusion17 decks35 decks
47%synergy
Village Rites
46%inclusion16 decks35 decks
20%synergy
Rat Out
37%inclusion13 decks35 decks
36%synergy
Deadly Dispute
37%inclusion13 decks35 decks
10%synergy
Murder
37%inclusion13 decks35 decks
27%synergy
Go for the Throat
29%inclusion10 decks35 decks
6%synergy
Virulent Wound
26%inclusion9 decks35 decks
25%synergy
Defile
23%inclusion8 decks35 decks
-12%synergy
Hero's Downfall
20%inclusion7 decks35 decks
13%synergy
Consuming Corruption
17%inclusion6 decks35 decks
2%synergy
Tainted Strike
17%inclusion6 decks35 decks
14%synergy
Tragic Slip
17%inclusion6 decks35 decks
-2%synergy
Anoint with Affliction
14%inclusion5 decks35 decks
14%synergy
Doom Blade
14%inclusion5 decks35 decks
7%synergy
Raise the Draugr
14%inclusion5 decks35 decks
13%synergy
Infernal Grasp
14%inclusion5 decks35 decks
-11%synergy
Corrupted Conviction
14%inclusion5 decks35 decks
2%synergy
Altar's Reap
11%inclusion4 decks35 decks
9%synergy
Drag to the Underworld
11%inclusion4 decks35 decks
10%synergy
Foul-Tongue Shriek
11%inclusion4 decks35 decks
10%synergy
Fake Your Own Death
11%inclusion4 decks35 decks
4%synergy
Sheoldred's Edict
8.6%inclusion3 decks35 decks
-6%synergy
Culling the Weak
8.6%inclusion3 decks35 decks
-9%synergy
Undying Malice
8.6%inclusion3 decks35 decks
-2%synergy
Offer Immortality
8.6%inclusion3 decks35 decks
7%synergy
Gravepurge
8.6%inclusion3 decks35 decks
7%synergy
Breathe Your Last
8.6%inclusion3 decks35 decks
7%synergy
Withering Torment
8.6%inclusion3 decks35 decks
-23%synergy
Archenemy's Charm
8.0%inclusion2 decks25 decks
-1%synergy
Hazel's Nocturne
5.7%inclusion2 decks35 decks
5%synergy
Give In to Violence
5.7%inclusion2 decks35 decks
5%synergy
Imp's Mischief
5.7%inclusion2 decks35 decks
-20%synergy
Not Dead After All
5.7%inclusion2 decks35 decks
-6%synergy
Death Denied
5.7%inclusion2 decks35 decks
5%synergy
Black Sun's Twilight
5.7%inclusion2 decks35 decks
3%synergy
Consumed by Greed
5.7%inclusion2 decks35 decks
5%synergy
Cremate
5.7%inclusion2 decks35 decks
4%synergy
Defenestrate
5.7%inclusion2 decks35 decks
6%synergy
Merciless Resolve
5.7%inclusion2 decks35 decks
6%synergy
Sorceries
Revenge of the Rats
54%inclusion19 decks35 decks
51%synergy
Vat Emergence
43%inclusion15 decks35 decks
42%synergy
Crippling Fear
40%inclusion14 decks35 decks
37%synergy
Spread the Sickness
34%inclusion12 decks35 decks
34%synergy
Diabolic Tutor
34%inclusion12 decks35 decks
21%synergy
Feed the Swarm
34%inclusion12 decks35 decks
-16%synergy
Read the Bones
29%inclusion10 decks35 decks
13%synergy
Sign in Blood
29%inclusion10 decks35 decks
-6%synergy
Bloodline Bidding
27%inclusion4 decks15 decks
23%synergy
Victimize
23%inclusion8 decks35 decks
-5%synergy
Feed the Infection
23%inclusion8 decks35 decks
22%synergy
Unearth
20%inclusion7 decks35 decks
11%synergy
Night's Whisper
20%inclusion7 decks35 decks
-5%synergy
Phyresis Outbreak
17%inclusion6 decks35 decks
16%synergy
Mutilate
17%inclusion6 decks35 decks
2%synergy
Caress of Phyrexia
17%inclusion6 decks35 decks
17%synergy
Syphon Mind
17%inclusion6 decks35 decks
5%synergy
Return from Extinction
14%inclusion5 decks35 decks
14%synergy
Swarmyard Massacre
14%inclusion5 decks35 decks
12%synergy
Geth's Summons
14%inclusion5 decks35 decks
14%synergy
Kindred Dominance
14%inclusion5 decks35 decks
10%synergy
Gruesome Fate
14%inclusion5 decks35 decks
12%synergy
Predators' Hour
11%inclusion4 decks35 decks
10%synergy
In Garruk's Wake
11%inclusion4 decks35 decks
8%synergy
Lab Rats
11%inclusion4 decks35 decks
11%synergy
Eaten Alive
11%inclusion4 decks35 decks
8%synergy
Pull from the Grave
9.1%inclusion1 decks11 decks
8%synergy
Send in the Pest
9.1%inclusion1 decks11 decks
7%synergy
Bone Splinters
8.6%inclusion3 decks35 decks
7%synergy
Patriarch's Bidding
8.6%inclusion3 decks35 decks
5%synergy
Forever Young
8.6%inclusion3 decks35 decks
7%synergy
Echoing Return
8.6%inclusion3 decks35 decks
6%synergy
Ancient Craving
8.6%inclusion3 decks35 decks
7%synergy
Ambition's Cost
8.6%inclusion3 decks35 decks
6%synergy
Fell
8.6%inclusion3 decks35 decks
5%synergy
Decree of Pain
8.6%inclusion3 decks35 decks
4%synergy
Strategic Betrayal
6.1%inclusion2 decks33 decks
6%synergy
Command the Dreadhorde
5.7%inclusion2 decks35 decks
4%synergy
Profane Tutor
5.7%inclusion2 decks35 decks
2%synergy
Haunting Voyage
5.7%inclusion2 decks35 decks
5%synergy
Duress
5.7%inclusion2 decks35 decks
-1%synergy
March of the Returned
5.7%inclusion2 decks35 decks
6%synergy
Bone Shards
5.7%inclusion2 decks35 decks
2%synergy
Profane Command
5.7%inclusion2 decks35 decks
4%synergy
Exsanguinate
5.7%inclusion2 decks35 decks
-19%synergy
Hex
5.7%inclusion2 decks35 decks
5%synergy
Living Death
5.7%inclusion2 decks35 decks
-5%synergy
Toxic Deluge
5.7%inclusion2 decks35 decks
-31%synergy
Dirge of Dread
5.7%inclusion2 decks35 decks
5%synergy
Pact of the Serpent
5.7%inclusion2 decks35 decks
4%synergy
Utility Artifacts
Bontu's Monument
57%inclusion20 decks35 decks
29%synergy
Herald's Horn
40%inclusion14 decks35 decks
34%synergy
Contagion Clasp
37%inclusion13 decks35 decks
35%synergy
Icon of Ancestry
23%inclusion8 decks35 decks
22%synergy
Vanquisher's Banner
23%inclusion8 decks35 decks
19%synergy
Jet Medallion
23%inclusion8 decks35 decks
-39%synergy
Swiftfoot Boots
23%inclusion8 decks35 decks
-9%synergy
Wayfarer's Bauble
14%inclusion5 decks35 decks
-0%synergy
Skullclamp
11%inclusion4 decks35 decks
-11%synergy
Hall of Triumph
11%inclusion4 decks35 decks
11%synergy
Thieves' Tools
11%inclusion4 decks35 decks
10%synergy
Door of Destinies
11%inclusion4 decks35 decks
9%synergy
Thornbite Staff
11%inclusion4 decks35 decks
9%synergy
Vat of Rebirth
8.6%inclusion3 decks35 decks
5%synergy
Grafted Exoskeleton
8.6%inclusion3 decks35 decks
7%synergy
Anchovy & Banana Pizza
8.3%inclusion1 decks12 decks
8%synergy
Gathering Stone
6.7%inclusion1 decks15 decks
5%synergy
Stalactite Dagger
6.7%inclusion1 decks15 decks
7%synergy
Ashnod's Altar
5.7%inclusion2 decks35 decks
-14%synergy
Coat of Arms
5.7%inclusion2 decks35 decks
3%synergy
Sword of the Squeak
5.7%inclusion2 decks35 decks
5%synergy
Prosthetic Injector
5.7%inclusion2 decks35 decks
5%synergy
Recon Craft Theta
5.7%inclusion2 decks35 decks
6%synergy
Horn of the Mark
5.7%inclusion2 decks35 decks
6%synergy
Lightning Greaves
5.7%inclusion2 decks35 decks
-28%synergy
Ring of Xathrid
5.7%inclusion2 decks35 decks
5%synergy
Enchantments
Necrogen Communion
51%inclusion18 decks35 decks
50%synergy
Phyresis
29%inclusion10 decks35 decks
27%synergy
Black Market
20%inclusion7 decks35 decks
-0%synergy
Tribute to Horobi
20%inclusion7 decks35 decks
19%synergy
Cover of Darkness
20%inclusion7 decks35 decks
17%synergy
Bad Moon
17%inclusion6 decks35 decks
14%synergy
Intimidation
14%inclusion5 decks35 decks
14%synergy
Oversold Cemetery
14%inclusion5 decks35 decks
9%synergy
Phyrexian Arena
14%inclusion5 decks35 decks
-25%synergy
Haunted One
11%inclusion4 decks35 decks
9%synergy
Lord Skitter's Blessing
11%inclusion4 decks35 decks
11%synergy
Okiba Reckoner Raid
8.6%inclusion3 decks35 decks
8%synergy
Vampiric Rites
8.6%inclusion3 decks35 decks
3%synergy
Relic Putrescence
8.6%inclusion3 decks35 decks
8%synergy
Mornsong Aria
6.7%inclusion1 decks15 decks
5%synergy
Greed
5.7%inclusion2 decks35 decks
-1%synergy
Fear
5.7%inclusion2 decks35 decks
5%synergy
Glistening Oil
5.7%inclusion2 decks35 decks
5%synergy
Phyrexian Reclamation
5.7%inclusion2 decks35 decks
-4%synergy
Snake Cult Initiation
5.7%inclusion2 decks35 decks
6%synergy
Bastion of Remembrance
5.7%inclusion2 decks35 decks
-11%synergy
Black Market Connections
5.7%inclusion2 decks35 decks
-19%synergy
Planeswalkers
Vraska, Betrayal's Sting
26%inclusion9 decks35 decks
23%synergy
Liliana of the Dark Realms
11%inclusion4 decks35 decks
-2%synergy
Utility Lands
Mudflat Village
49%inclusion17 decks35 decks
46%synergy
Karn's Bastion
46%inclusion16 decks35 decks
42%synergy
Rogue's Passage
46%inclusion16 decks35 decks
26%synergy
Mortuary Mire
37%inclusion13 decks35 decks
24%synergy
Bojuka Bog
34%inclusion12 decks35 decks
-13%synergy
Swarmyard
26%inclusion9 decks35 decks
20%synergy
Witch's Cottage
20%inclusion7 decks35 decks
-4%synergy
Barren Moor
17%inclusion6 decks35 decks
8%synergy
Access Tunnel
17%inclusion6 decks35 decks
14%synergy
Temple of the False God
14%inclusion5 decks35 decks
7%synergy
Memorial to Folly
11%inclusion4 decks35 decks
8%synergy
Reliquary Tower
11%inclusion4 decks35 decks
-18%synergy
Adventurer's Inn
7.1%inclusion2 decks28 decks
6%synergy
Subterranean Hangar
5.7%inclusion2 decks35 decks
6%synergy
Haunted Fengraf
5.7%inclusion2 decks35 decks
5%synergy
Thespian's Stage
5.7%inclusion2 decks35 decks
1%synergy
Mana Artifacts
Sol Ring
74%inclusion26 decks35 decks
-11%synergy
Arcane Signet
46%inclusion16 decks35 decks
-16%synergy
Charcoal Diamond
37%inclusion13 decks35 decks
15%synergy
Heraldic Banner
29%inclusion10 decks35 decks
23%synergy
Mind Stone
26%inclusion9 decks35 decks
-2%synergy
Phyrexian Atlas
23%inclusion8 decks35 decks
23%synergy
Patchwork Banner
20%inclusion7 decks35 decks
16%synergy
Commander's Sphere
11%inclusion4 decks35 decks
4%synergy
Thought Vessel
11%inclusion4 decks35 decks
-13%synergy
Caged Sun
5.7%inclusion2 decks35 decks
-5%synergy
Staff of Compleation
5.7%inclusion2 decks35 decks
4%synergy
Worn Powerstone
5.7%inclusion2 decks35 decks
2%synergy
Lands
Swamp
100%inclusion35 decks35 decks
5%synergy
Path of Ancestry
34%inclusion12 decks35 decks
29%synergy
Command Tower
23%inclusion8 decks35 decks
17%synergy
Myriad Landscape
23%inclusion8 decks35 decks
-2%synergy
Big Apple, 3 a.m.
17%inclusion2 decks12 decks
15%synergy
Terramorphic Expanse
11%inclusion4 decks35 decks
9%synergy
Evolving Wilds
8.6%inclusion3 decks35 decks
5%synergy
Daily Bugle Building
8.3%inclusion2 decks24 decks
8%synergy
Escape Tunnel
5.7%inclusion2 decks35 decks
5%synergy
The Seedcore
5.7%inclusion2 decks35 decks
6%synergy
Mirrex
5.7%inclusion2 decks35 decks
5%synergy
Ash Barrens
5.7%inclusion2 decks35 decks
4%synergy
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