Karumonix, the Rat King (Commander) - Budget Upgraded

Karumonix, the Rat King
Rank #401
34decks
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
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Blightbelly Rat
94%inclusion32 decks34 decks
91%synergy
Typhoid Rats
91%inclusion31 decks34 decks
88%synergy
Lord Skitter's Butcher
85%inclusion29 decks34 decks
82%synergy
Ichor Rats
79%inclusion27 decks34 decks
77%synergy
Vraska's Fall
79%inclusion27 decks34 decks
76%synergy
Septic Rats
76%inclusion26 decks34 decks
75%synergy
Infectious Inquiry
76%inclusion26 decks34 decks
74%synergy
Piper of the Swarm
79%inclusion27 decks34 decks
73%synergy
Rancid Rats
74%inclusion25 decks34 decks
71%synergy
Drown in Ichor
74%inclusion25 decks34 decks
70%synergy
Top Cards
Ogre Slumlord
79%inclusion27 decks34 decks
70%synergy
Lord Skitter, Sewer King
76%inclusion26 decks34 decks
68%synergy
Pack Rat
74%inclusion25 decks34 decks
68%synergy
Whisper of the Dross
68%inclusion23 decks34 decks
65%synergy
Tangled Colony
68%inclusion23 decks34 decks
65%synergy
Voracious Vermin
68%inclusion23 decks34 decks
65%synergy
Marrow-Gnawer
65%inclusion22 decks34 decks
61%synergy
Persistent Marshstalker
65%inclusion22 decks34 decks
62%synergy
Crypt Rats
65%inclusion22 decks34 decks
60%synergy
Rat King, Pale Piper
64%inclusion7 decks11 decks
60%synergy
Game Changers
Bolas's Citadel
24%inclusion8 decks34 decks
-5%synergy
Creatures
Burglar Rat
62%inclusion21 decks34 decks
51%synergy
Gnat Miser
59%inclusion20 decks34 decks
56%synergy
Undercity Dire Rat
56%inclusion15 decks27 decks
54%synergy
Chittering Skitterling
50%inclusion17 decks34 decks
49%synergy
Nezumi Cutthroat
50%inclusion17 decks34 decks
49%synergy
Twisted Sewer-Witch
47%inclusion16 decks34 decks
46%synergy
Changeling Outcast
47%inclusion16 decks34 decks
42%synergy
Stronghold Rats
47%inclusion16 decks34 decks
44%synergy
Ruin Rat
47%inclusion16 decks34 decks
46%synergy
Ravenous Rats
44%inclusion15 decks34 decks
42%synergy
Drainpipe Vermin
41%inclusion14 decks34 decks
40%synergy
Wave of Rats
41%inclusion14 decks34 decks
40%synergy
Engine Rat
38%inclusion13 decks34 decks
37%synergy
Swarm of Rats
38%inclusion13 decks34 decks
36%synergy
Nezumi Informant
38%inclusion13 decks34 decks
32%synergy
Pestilence Rats
38%inclusion13 decks34 decks
36%synergy
Rotting Rats
35%inclusion12 decks34 decks
32%synergy
Gnawing Vermin
35%inclusion12 decks34 decks
34%synergy
Razortooth Rats
35%inclusion12 decks34 decks
35%synergy
Rat King, Verminister
33%inclusion4 decks12 decks
30%synergy
Chittering Witch
32%inclusion11 decks34 decks
28%synergy
Nezumi Prowler
32%inclusion11 decks34 decks
31%synergy
Ratcatcher
32%inclusion11 decks34 decks
29%synergy
Rat Colony
32%inclusion11 decks34 decks
27%synergy
Splinter, Hamato Yoshi
27%inclusion3 decks11 decks
27%synergy
Refurbished Familiar
26%inclusion9 decks34 decks
24%synergy
Ink-Eyes, Servant of Oni
26%inclusion9 decks34 decks
23%synergy
Nezumi Graverobber
24%inclusion8 decks34 decks
22%synergy
Ayara, First of Locthwain
24%inclusion8 decks34 decks
-2%synergy
Gray Merchant of Asphodel
24%inclusion8 decks34 decks
-27%synergy
Throat Slitter
24%inclusion8 decks34 decks
22%synergy
Valley Rotcaller
24%inclusion8 decks34 decks
21%synergy
Bog Rats
21%inclusion7 decks34 decks
20%synergy
Chittering Rats
21%inclusion7 decks34 decks
20%synergy
Mukotai Ambusher
18%inclusion6 decks34 decks
17%synergy
Nezumi Bladeblesser
18%inclusion6 decks34 decks
17%synergy
Adaptive Automaton
18%inclusion6 decks34 decks
17%synergy
Locust Miser
18%inclusion6 decks34 decks
16%synergy
Nashi, Moon Sage's Scion
18%inclusion6 decks34 decks
14%synergy
Old Flitterfang
18%inclusion6 decks34 decks
17%synergy
Elephant-Rat
17%inclusion4 decks24 decks
16%synergy
Patron of the Nezumi
15%inclusion5 decks34 decks
14%synergy
Innocuous Rat
15%inclusion5 decks34 decks
14%synergy
Nezumi Shortfang
15%inclusion5 decks34 decks
14%synergy
Skullsnatcher
15%inclusion5 decks34 decks
14%synergy
Sewer Rats
15%inclusion5 decks34 decks
14%synergy
Nezumi Bone-Reader
15%inclusion5 decks34 decks
14%synergy
Relentless Rats
12%inclusion4 decks34 decks
10%synergy
Gutter Skulk
12%inclusion4 decks34 decks
12%synergy
Daggerfang Duo
12%inclusion4 decks34 decks
11%synergy
Instants
Dark Ritual
56%inclusion19 decks34 decks
-11%synergy
Grim Affliction
50%inclusion17 decks34 decks
48%synergy
Village Rites
47%inclusion16 decks34 decks
22%synergy
Murder
38%inclusion13 decks34 decks
28%synergy
Rat Out
35%inclusion12 decks34 decks
34%synergy
Deadly Dispute
35%inclusion12 decks34 decks
9%synergy
Go for the Throat
29%inclusion10 decks34 decks
7%synergy
Virulent Wound
26%inclusion9 decks34 decks
26%synergy
Hero's Downfall
21%inclusion7 decks34 decks
14%synergy
Defile
21%inclusion7 decks34 decks
-15%synergy
Consuming Corruption
18%inclusion6 decks34 decks
2%synergy
Tainted Strike
18%inclusion6 decks34 decks
15%synergy
Tragic Slip
18%inclusion6 decks34 decks
-1%synergy
Anoint with Affliction
15%inclusion5 decks34 decks
14%synergy
Doom Blade
15%inclusion5 decks34 decks
8%synergy
Raise the Draugr
15%inclusion5 decks34 decks
14%synergy
Infernal Grasp
15%inclusion5 decks34 decks
-10%synergy
Corrupted Conviction
15%inclusion5 decks34 decks
2%synergy
Altar's Reap
12%inclusion4 decks34 decks
9%synergy
Drag to the Underworld
12%inclusion4 decks34 decks
10%synergy
Foul-Tongue Shriek
12%inclusion4 decks34 decks
10%synergy
Fake Your Own Death
12%inclusion4 decks34 decks
4%synergy
Gravepurge
12%inclusion4 decks34 decks
10%synergy
Defenestrate
8.8%inclusion3 decks34 decks
9%synergy
Breathe Your Last
8.8%inclusion3 decks34 decks
7%synergy
Withering Torment
8.8%inclusion3 decks34 decks
-23%synergy
Archenemy's Charm
8.3%inclusion2 decks24 decks
-1%synergy
Alesha's Legacy
6.3%inclusion2 decks32 decks
5%synergy
Sheoldred's Edict
5.9%inclusion2 decks34 decks
-9%synergy
Hazel's Nocturne
5.9%inclusion2 decks34 decks
5%synergy
Give In to Violence
5.9%inclusion2 decks34 decks
5%synergy
Imp's Mischief
5.9%inclusion2 decks34 decks
-19%synergy
Not Dead After All
5.9%inclusion2 decks34 decks
-5%synergy
Culling the Weak
5.9%inclusion2 decks34 decks
-12%synergy
Undying Malice
5.9%inclusion2 decks34 decks
-4%synergy
Death Denied
5.9%inclusion2 decks34 decks
5%synergy
Consumed by Greed
5.9%inclusion2 decks34 decks
5%synergy
Offer Immortality
5.9%inclusion2 decks34 decks
4%synergy
Sorceries
Revenge of the Rats
59%inclusion20 decks34 decks
56%synergy
Vat Emergence
44%inclusion15 decks34 decks
43%synergy
Diabolic Tutor
38%inclusion13 decks34 decks
24%synergy
Crippling Fear
38%inclusion13 decks34 decks
35%synergy
Spread the Sickness
35%inclusion12 decks34 decks
35%synergy
Feed the Swarm
32%inclusion11 decks34 decks
-18%synergy
Sign in Blood
29%inclusion10 decks34 decks
-6%synergy
Read the Bones
26%inclusion9 decks34 decks
10%synergy
Feed the Infection
24%inclusion8 decks34 decks
23%synergy
Victimize
21%inclusion7 decks34 decks
-7%synergy
Unearth
21%inclusion7 decks34 decks
12%synergy
Night's Whisper
21%inclusion7 decks34 decks
-5%synergy
Phyresis Outbreak
18%inclusion6 decks34 decks
16%synergy
Mutilate
18%inclusion6 decks34 decks
2%synergy
Syphon Mind
18%inclusion6 decks34 decks
6%synergy
Return from Extinction
15%inclusion5 decks34 decks
14%synergy
Caress of Phyrexia
15%inclusion5 decks34 decks
14%synergy
Geth's Summons
15%inclusion5 decks34 decks
14%synergy
Kindred Dominance
15%inclusion5 decks34 decks
10%synergy
Gruesome Fate
15%inclusion5 decks34 decks
13%synergy
Bloodline Bidding
14%inclusion2 decks14 decks
10%synergy
Forever Young
12%inclusion4 decks34 decks
10%synergy
Predators' Hour
12%inclusion4 decks34 decks
10%synergy
Swarmyard Massacre
12%inclusion4 decks34 decks
9%synergy
In Garruk's Wake
12%inclusion4 decks34 decks
8%synergy
Lab Rats
12%inclusion4 decks34 decks
11%synergy
Eaten Alive
12%inclusion4 decks34 decks
8%synergy
Pull from the Grave
10%inclusion1 decks10 decks
9%synergy
Send in the Pest
10%inclusion1 decks10 decks
8%synergy
Bone Splinters
8.8%inclusion3 decks34 decks
7%synergy
Patriarch's Bidding
8.8%inclusion3 decks34 decks
5%synergy
Ancient Craving
8.8%inclusion3 decks34 decks
7%synergy
Ambition's Cost
8.8%inclusion3 decks34 decks
6%synergy
Fell
8.8%inclusion3 decks34 decks
5%synergy
Decree of Pain
8.8%inclusion3 decks34 decks
4%synergy
Strategic Betrayal
6.3%inclusion2 decks32 decks
6%synergy
Command the Dreadhorde
5.9%inclusion2 decks34 decks
5%synergy
Profane Tutor
5.9%inclusion2 decks34 decks
2%synergy
Haunting Voyage
5.9%inclusion2 decks34 decks
5%synergy
March of the Returned
5.9%inclusion2 decks34 decks
6%synergy
Echoing Return
5.9%inclusion2 decks34 decks
3%synergy
Bone Shards
5.9%inclusion2 decks34 decks
2%synergy
Profane Command
5.9%inclusion2 decks34 decks
4%synergy
Exsanguinate
5.9%inclusion2 decks34 decks
-19%synergy
Hex
5.9%inclusion2 decks34 decks
5%synergy
Living Death
5.9%inclusion2 decks34 decks
-4%synergy
Toxic Deluge
5.9%inclusion2 decks34 decks
-31%synergy
Dirge of Dread
5.9%inclusion2 decks34 decks
5%synergy
Pact of the Serpent
5.9%inclusion2 decks34 decks
4%synergy
Utility Artifacts
Bontu's Monument
59%inclusion20 decks34 decks
31%synergy
Herald's Horn
44%inclusion15 decks34 decks
39%synergy
Contagion Clasp
38%inclusion13 decks34 decks
36%synergy
Icon of Ancestry
24%inclusion8 decks34 decks
23%synergy
Vanquisher's Banner
24%inclusion8 decks34 decks
20%synergy
Swiftfoot Boots
24%inclusion8 decks34 decks
-8%synergy
Jet Medallion
21%inclusion7 decks34 decks
-42%synergy
Wayfarer's Bauble
15%inclusion5 decks34 decks
0%synergy
Skullclamp
12%inclusion4 decks34 decks
-11%synergy
Hall of Triumph
12%inclusion4 decks34 decks
11%synergy
Thieves' Tools
12%inclusion4 decks34 decks
10%synergy
Door of Destinies
12%inclusion4 decks34 decks
10%synergy
Vat of Rebirth
8.8%inclusion3 decks34 decks
5%synergy
Sword of the Squeak
8.8%inclusion3 decks34 decks
8%synergy
Thornbite Staff
8.8%inclusion3 decks34 decks
6%synergy
Grafted Exoskeleton
8.8%inclusion3 decks34 decks
8%synergy
Gathering Stone
7.1%inclusion1 decks14 decks
6%synergy
Stalactite Dagger
7.1%inclusion1 decks14 decks
7%synergy
Ashnod's Altar
5.9%inclusion2 decks34 decks
-14%synergy
Coat of Arms
5.9%inclusion2 decks34 decks
3%synergy
Prosthetic Injector
5.9%inclusion2 decks34 decks
6%synergy
Banner of Kinship
5.9%inclusion2 decks34 decks
4%synergy
Recon Craft Theta
5.9%inclusion2 decks34 decks
6%synergy
Horn of the Mark
5.9%inclusion2 decks34 decks
6%synergy
Lightning Greaves
5.9%inclusion2 decks34 decks
-28%synergy
Enchantments
Necrogen Communion
50%inclusion17 decks34 decks
48%synergy
Phyresis
29%inclusion10 decks34 decks
27%synergy
Black Market
21%inclusion7 decks34 decks
0%synergy
Cover of Darkness
21%inclusion7 decks34 decks
18%synergy
Tribute to Horobi
18%inclusion6 decks34 decks
17%synergy
Bad Moon
18%inclusion6 decks34 decks
15%synergy
Intimidation
15%inclusion5 decks34 decks
14%synergy
Oversold Cemetery
15%inclusion5 decks34 decks
9%synergy
Phyrexian Arena
15%inclusion5 decks34 decks
-25%synergy
Haunted One
12%inclusion4 decks34 decks
9%synergy
Lord Skitter's Blessing
12%inclusion4 decks34 decks
11%synergy
Vampiric Rites
8.8%inclusion3 decks34 decks
3%synergy
Relic Putrescence
8.8%inclusion3 decks34 decks
9%synergy
Mornsong Aria
7.1%inclusion1 decks14 decks
6%synergy
Greed
5.9%inclusion2 decks34 decks
-1%synergy
Okiba Reckoner Raid
5.9%inclusion2 decks34 decks
6%synergy
Glistening Oil
5.9%inclusion2 decks34 decks
5%synergy
Phyrexian Reclamation
5.9%inclusion2 decks34 decks
-4%synergy
Sporogenic Infection
5.9%inclusion2 decks34 decks
6%synergy
Snake Cult Initiation
5.9%inclusion2 decks34 decks
6%synergy
No Mercy
5.9%inclusion2 decks34 decks
-1%synergy
Bastion of Remembrance
5.9%inclusion2 decks34 decks
-11%synergy
Black Market Connections
5.9%inclusion2 decks34 decks
-19%synergy
Planeswalkers
Vraska, Betrayal's Sting
24%inclusion8 decks34 decks
21%synergy
Liliana of the Dark Realms
12%inclusion4 decks34 decks
-2%synergy
Utility Lands
Mudflat Village
53%inclusion18 decks34 decks
50%synergy
Rogue's Passage
47%inclusion16 decks34 decks
28%synergy
Karn's Bastion
44%inclusion15 decks34 decks
40%synergy
Mortuary Mire
38%inclusion13 decks34 decks
25%synergy
Bojuka Bog
32%inclusion11 decks34 decks
-15%synergy
Swarmyard
29%inclusion10 decks34 decks
24%synergy
Barren Moor
18%inclusion6 decks34 decks
8%synergy
Witch's Cottage
18%inclusion6 decks34 decks
-7%synergy
Access Tunnel
18%inclusion6 decks34 decks
15%synergy
Temple of the False God
15%inclusion5 decks34 decks
7%synergy
Memorial to Folly
12%inclusion4 decks34 decks
9%synergy
Reliquary Tower
12%inclusion4 decks34 decks
-18%synergy
Haunted Fengraf
8.8%inclusion3 decks34 decks
8%synergy
Adventurer's Inn
7.4%inclusion2 decks27 decks
6%synergy
Subterranean Hangar
5.9%inclusion2 decks34 decks
6%synergy
Thespian's Stage
5.9%inclusion2 decks34 decks
1%synergy
Mana Artifacts
Sol Ring
76%inclusion26 decks34 decks
-9%synergy
Arcane Signet
44%inclusion15 decks34 decks
-17%synergy
Charcoal Diamond
35%inclusion12 decks34 decks
13%synergy
Heraldic Banner
29%inclusion10 decks34 decks
24%synergy
Mind Stone
26%inclusion9 decks34 decks
-2%synergy
Patchwork Banner
24%inclusion8 decks34 decks
19%synergy
Phyrexian Atlas
18%inclusion6 decks34 decks
17%synergy
Commander's Sphere
12%inclusion4 decks34 decks
4%synergy
Thought Vessel
12%inclusion4 decks34 decks
-13%synergy
Caged Sun
5.9%inclusion2 decks34 decks
-5%synergy
Staff of Compleation
5.9%inclusion2 decks34 decks
4%synergy
Worn Powerstone
5.9%inclusion2 decks34 decks
2%synergy
Lands
Swamp
100%inclusion34 decks34 decks
5%synergy
Path of Ancestry
35%inclusion12 decks34 decks
30%synergy
Command Tower
24%inclusion8 decks34 decks
18%synergy
Myriad Landscape
24%inclusion8 decks34 decks
-1%synergy
Big Apple, 3 a.m.
18%inclusion2 decks11 decks
16%synergy
Terramorphic Expanse
12%inclusion4 decks34 decks
9%synergy
Evolving Wilds
8.8%inclusion3 decks34 decks
5%synergy
Daily Bugle Building
8.7%inclusion2 decks23 decks
8%synergy
Mirrex
5.9%inclusion2 decks34 decks
5%synergy
Ash Barrens
5.9%inclusion2 decks34 decks
5%synergy
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