Karumonix, the Rat King (Commander) - Budget Optimized

Karumonix, the Rat King
Rank #393
7decks
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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Arnyn, Deathbloom Botanist
50%inclusion1 decks2 decks
47%synergy
Cheerful Osteomancer
50%inclusion1 decks2 decks
49%synergy
Send in the Pest
50%inclusion1 decks2 decks
48%synergy
High Synergy Cards
Necrogen Communion
100%inclusion7 decks7 decks
98%synergy
Blightbelly Rat
100%inclusion7 decks7 decks
97%synergy
Piper of the Swarm
100%inclusion7 decks7 decks
93%synergy
Rancid Rats
86%inclusion6 decks7 decks
83%synergy
Infectious Inquiry
86%inclusion6 decks7 decks
83%synergy
Ichor Rats
86%inclusion6 decks7 decks
83%synergy
Voracious Vermin
86%inclusion6 decks7 decks
83%synergy
Lord Skitter, Sewer King
86%inclusion6 decks7 decks
77%synergy
Ogre Slumlord
86%inclusion6 decks7 decks
76%synergy
Chittering Skitterling
71%inclusion5 decks7 decks
71%synergy
Top Cards
Lord Skitter's Butcher
71%inclusion5 decks7 decks
68%synergy
Crypt Rats
71%inclusion5 decks7 decks
67%synergy
Marrow-Gnawer
71%inclusion5 decks7 decks
68%synergy
Engine Rat
71%inclusion5 decks7 decks
70%synergy
Typhoid Rats
71%inclusion5 decks7 decks
68%synergy
Vraska's Fall
57%inclusion4 decks7 decks
54%synergy
Tangled Colony
57%inclusion4 decks7 decks
54%synergy
Whisper of the Dross
57%inclusion4 decks7 decks
54%synergy
Feed the Infection
57%inclusion4 decks7 decks
57%synergy
Pack Rat
57%inclusion4 decks7 decks
51%synergy
Game Changers
Bolas's Citadel
29%inclusion2 decks7 decks
0%synergy
Braids, Cabal Minion
29%inclusion2 decks7 decks
25%synergy
Vampiric Tutor
14%inclusion1 decks7 decks
-7%synergy
Demonic Tutor
14%inclusion1 decks7 decks
-13%synergy
Creatures
Septic Rats
57%inclusion4 decks7 decks
55%synergy
Rat Colony
57%inclusion4 decks7 decks
52%synergy
Burglar Rat
57%inclusion4 decks7 decks
46%synergy
Ravenous Rats
57%inclusion4 decks7 decks
55%synergy
Chittering Witch
57%inclusion4 decks7 decks
53%synergy
Wave of Rats
57%inclusion4 decks7 decks
55%synergy
Rat King, Pale Piper
50%inclusion2 decks4 decks
46%synergy
Twisted Sewer-Witch
43%inclusion3 decks7 decks
41%synergy
Ratcatcher
43%inclusion3 decks7 decks
39%synergy
Gnat Miser
43%inclusion3 decks7 decks
40%synergy
Stronghold Rats
43%inclusion3 decks7 decks
39%synergy
Drainpipe Vermin
43%inclusion3 decks7 decks
42%synergy
Ruin Rat
43%inclusion3 decks7 decks
42%synergy
Innocuous Rat
29%inclusion2 decks7 decks
28%synergy
Skullsnatcher
29%inclusion2 decks7 decks
28%synergy
Razortooth Rats
29%inclusion2 decks7 decks
28%synergy
Locust Miser
29%inclusion2 decks7 decks
27%synergy
Valley Rotcaller
29%inclusion2 decks7 decks
26%synergy
Nezumi Informant
29%inclusion2 decks7 decks
22%synergy
Pestilence Rats
29%inclusion2 decks7 decks
27%synergy
Old Flitterfang
29%inclusion2 decks7 decks
27%synergy
Nezumi Bladeblesser
29%inclusion2 decks7 decks
28%synergy
Swarm of Rats
29%inclusion2 decks7 decks
26%synergy
Nezumi Cutthroat
29%inclusion2 decks7 decks
28%synergy
Nezumi Bone-Reader
29%inclusion2 decks7 decks
28%synergy
Gulping Scraptrap
29%inclusion2 decks7 decks
28%synergy
Plague Stinger
29%inclusion2 decks7 decks
28%synergy
Infected Vermin
29%inclusion2 decks7 decks
28%synergy
Nezumi Prowler
29%inclusion2 decks7 decks
27%synergy
Bonepicker Skirge
29%inclusion2 decks7 decks
28%synergy
Nashi, Moon Sage's Scion
29%inclusion2 decks7 decks
25%synergy
Elephant-Rat
20%inclusion1 decks5 decks
20%synergy
Rat King, Verminister
20%inclusion1 decks5 decks
17%synergy
Chittering Rats
14%inclusion1 decks7 decks
14%synergy
Carrion Rats
14%inclusion1 decks7 decks
14%synergy
Priest of Forgotten Gods
14%inclusion1 decks7 decks
6%synergy
Crashing Drawbridge
14%inclusion1 decks7 decks
12%synergy
Spectrum Sentinel
14%inclusion1 decks7 decks
14%synergy
Changeling Outcast
14%inclusion1 decks7 decks
9%synergy
Toxic Nim
14%inclusion1 decks7 decks
14%synergy
Skithiryx, the Blight Dragon
14%inclusion1 decks7 decks
13%synergy
Hand of the Praetors
14%inclusion1 decks7 decks
14%synergy
Refurbished Familiar
14%inclusion1 decks7 decks
12%synergy
Mirkwood Bats
14%inclusion1 decks7 decks
6%synergy
Nezumi Ronin
14%inclusion1 decks7 decks
14%synergy
Pestilent Syphoner
14%inclusion1 decks7 decks
14%synergy
Rotting Rats
14%inclusion1 decks7 decks
11%synergy
Reaper of Sheoldred
14%inclusion1 decks7 decks
14%synergy
Diamond Knight
14%inclusion1 decks7 decks
14%synergy
Nezumi Shadow-Watcher
14%inclusion1 decks7 decks
14%synergy
Instants
Dark Ritual
43%inclusion3 decks7 decks
-24%synergy
Corrupted Conviction
43%inclusion3 decks7 decks
30%synergy
Go for the Throat
43%inclusion3 decks7 decks
20%synergy
Grim Affliction
43%inclusion3 decks7 decks
41%synergy
Virulent Wound
43%inclusion3 decks7 decks
42%synergy
Deadly Rollick
29%inclusion2 decks7 decks
4%synergy
Rat Out
29%inclusion2 decks7 decks
27%synergy
Deadly Dispute
29%inclusion2 decks7 decks
2%synergy
Foul-Tongue Shriek
29%inclusion2 decks7 decks
27%synergy
Village Rites
29%inclusion2 decks7 decks
3%synergy
Tragic Slip
29%inclusion2 decks7 decks
9%synergy
Consuming Corruption
29%inclusion2 decks7 decks
13%synergy
Murder
29%inclusion2 decks7 decks
19%synergy
The Spot's Portal
20%inclusion1 decks5 decks
20%synergy
Zuko's Conviction
20%inclusion1 decks5 decks
19%synergy
Anoint with Affliction
14%inclusion1 decks7 decks
14%synergy
Infernal Grasp
14%inclusion1 decks7 decks
-11%synergy
Tainted Strike
14%inclusion1 decks7 decks
11%synergy
Offer Immortality
14%inclusion1 decks7 decks
12%synergy
Live or Die
14%inclusion1 decks7 decks
14%synergy
Early Winter
14%inclusion1 decks7 decks
14%synergy
Hero's Downfall
14%inclusion1 decks7 decks
8%synergy
Defile
14%inclusion1 decks7 decks
-22%synergy
Death Denied
14%inclusion1 decks7 decks
14%synergy
Unseal the Necropolis
14%inclusion1 decks7 decks
13%synergy
Alesha's Legacy
14%inclusion1 decks7 decks
13%synergy
Ultimate Price
14%inclusion1 decks7 decks
14%synergy
Price of Fame
14%inclusion1 decks7 decks
13%synergy
Doom Blade
14%inclusion1 decks7 decks
7%synergy
Bitter Triumph
14%inclusion1 decks7 decks
4%synergy
Gravepurge
14%inclusion1 decks7 decks
13%synergy
Maximum Overdrive
14%inclusion1 decks7 decks
13%synergy
Desperate Measures
14%inclusion1 decks7 decks
14%synergy
Withering Torment
14%inclusion1 decks7 decks
-17%synergy
Sorceries
Drown in Ichor
57%inclusion4 decks7 decks
53%synergy
Vat Emergence
43%inclusion3 decks7 decks
41%synergy
Revenge of the Rats
43%inclusion3 decks7 decks
40%synergy
Spread the Sickness
43%inclusion3 decks7 decks
42%synergy
Crippling Fear
43%inclusion3 decks7 decks
40%synergy
Night's Whisper
29%inclusion2 decks7 decks
4%synergy
Geth's Summons
29%inclusion2 decks7 decks
28%synergy
Read the Bones
29%inclusion2 decks7 decks
12%synergy
Sign in Blood
29%inclusion2 decks7 decks
-7%synergy
Phyresis Outbreak
29%inclusion2 decks7 decks
27%synergy
Mutilate
29%inclusion2 decks7 decks
12%synergy
Gruesome Fate
29%inclusion2 decks7 decks
26%synergy
Darkness Descends
20%inclusion1 decks5 decks
20%synergy
Deadly Precision
20%inclusion1 decks5 decks
19%synergy
Temporal Intervention
17%inclusion1 decks6 decks
16%synergy
March of the Returned
14%inclusion1 decks7 decks
14%synergy
Feed the Swarm
14%inclusion1 decks7 decks
-36%synergy
Soul Salvage
14%inclusion1 decks7 decks
14%synergy
Caress of Phyrexia
14%inclusion1 decks7 decks
14%synergy
Annihilating Glare
14%inclusion1 decks7 decks
13%synergy
Dutiful Return
14%inclusion1 decks7 decks
14%synergy
Damnation
14%inclusion1 decks7 decks
-6%synergy
Epic Downfall
14%inclusion1 decks7 decks
14%synergy
Pact of the Serpent
14%inclusion1 decks7 decks
13%synergy
Embrace Oblivion
14%inclusion1 decks7 decks
13%synergy
Increasing Ambition
14%inclusion1 decks7 decks
14%synergy
Swarmyard Massacre
14%inclusion1 decks7 decks
12%synergy
Death Cloud
14%inclusion1 decks7 decks
12%synergy
Dread Charge
14%inclusion1 decks7 decks
14%synergy
Buried Alive
14%inclusion1 decks7 decks
2%synergy
Swallowing Plague
14%inclusion1 decks7 decks
14%synergy
Final Parting
14%inclusion1 decks7 decks
10%synergy
Toxic Deluge
14%inclusion1 decks7 decks
-22%synergy
Syphon Soul
14%inclusion1 decks7 decks
14%synergy
Let's Play a Game
14%inclusion1 decks7 decks
12%synergy
Stench of Evil
14%inclusion1 decks7 decks
14%synergy
Diabolic Tutor
14%inclusion1 decks7 decks
0%synergy
Break the Ice
14%inclusion1 decks7 decks
14%synergy
Lash of the Balrog
14%inclusion1 decks7 decks
13%synergy
Bone Shards
14%inclusion1 decks7 decks
11%synergy
Stronghold Discipline
14%inclusion1 decks7 decks
14%synergy
In Garruk's Wake
14%inclusion1 decks7 decks
10%synergy
Final Vengeance
14%inclusion1 decks7 decks
13%synergy
Utility Artifacts
Swiftfoot Boots
43%inclusion3 decks7 decks
12%synergy
Bontu's Monument
43%inclusion3 decks7 decks
14%synergy
Wayfarer's Bauble
29%inclusion2 decks7 decks
14%synergy
Contagion Clasp
29%inclusion2 decks7 decks
26%synergy
Contagion Engine
29%inclusion2 decks7 decks
27%synergy
Vanquisher's Banner
29%inclusion2 decks7 decks
25%synergy
Herald's Horn
29%inclusion2 decks7 decks
23%synergy
Thornbite Staff
29%inclusion2 decks7 decks
26%synergy
Lightning Greaves
14%inclusion1 decks7 decks
-19%synergy
Demon's Horn
14%inclusion1 decks7 decks
10%synergy
Mishra's Bauble
14%inclusion1 decks7 decks
13%synergy
Expedition Map
14%inclusion1 decks7 decks
3%synergy
Icon of Ancestry
14%inclusion1 decks7 decks
13%synergy
Jet Medallion
14%inclusion1 decks7 decks
-48%synergy
Enchantments
Relic Putrescence
43%inclusion3 decks7 decks
43%synergy
Phyresis
43%inclusion3 decks7 decks
41%synergy
Bad Moon
43%inclusion3 decks7 decks
40%synergy
Phyrexian Arena
29%inclusion2 decks7 decks
-11%synergy
Cover of Darkness
29%inclusion2 decks7 decks
26%synergy
Oversold Cemetery
29%inclusion2 decks7 decks
23%synergy
Cracked Skull
14%inclusion1 decks7 decks
14%synergy
Grievous Wound
14%inclusion1 decks7 decks
12%synergy
Vampiric Rites
14%inclusion1 decks7 decks
8%synergy
Quest for the Nihil Stone
14%inclusion1 decks7 decks
12%synergy
Lord Skitter's Blessing
14%inclusion1 decks7 decks
14%synergy
Greed
14%inclusion1 decks7 decks
8%synergy
Contamination
14%inclusion1 decks7 decks
11%synergy
Contaminated Ground
14%inclusion1 decks7 decks
14%synergy
Contaminated Bond
14%inclusion1 decks7 decks
14%synergy
Funeral Room // Awakening Hall
14%inclusion1 decks7 decks
10%synergy
Painful Quandary
14%inclusion1 decks7 decks
4%synergy
Bloodchief Ascension
14%inclusion1 decks7 decks
5%synergy
Price of Knowledge
14%inclusion1 decks7 decks
14%synergy
Black Market
14%inclusion1 decks7 decks
-7%synergy
Sporogenic Infection
14%inclusion1 decks7 decks
14%synergy
Eternal Thirst
14%inclusion1 decks7 decks
12%synergy
Snake Cult Initiation
14%inclusion1 decks7 decks
14%synergy
Planeswalkers
Vraska, Betrayal's Sting
43%inclusion3 decks7 decks
40%synergy
Liliana of the Dark Realms
29%inclusion2 decks7 decks
15%synergy
Sorin Markov
14%inclusion1 decks7 decks
12%synergy
Utility Lands
Bojuka Bog
71%inclusion5 decks7 decks
24%synergy
Mudflat Village
43%inclusion3 decks7 decks
40%synergy
Swarmyard
29%inclusion2 decks7 decks
23%synergy
Witch's Cottage
29%inclusion2 decks7 decks
4%synergy
Karn's Bastion
29%inclusion2 decks7 decks
25%synergy
Mortuary Mire
29%inclusion2 decks7 decks
16%synergy
Temple of the False God
29%inclusion2 decks7 decks
21%synergy
Crypt of Agadeem
14%inclusion1 decks7 decks
3%synergy
Access Tunnel
14%inclusion1 decks7 decks
11%synergy
Vault of Whispers
14%inclusion1 decks7 decks
9%synergy
Command Beacon
14%inclusion1 decks7 decks
6%synergy
Reliquary Tower
14%inclusion1 decks7 decks
-16%synergy
Rogue's Passage
14%inclusion1 decks7 decks
-5%synergy
Mana Artifacts
Sol Ring
100%inclusion7 decks7 decks
14%synergy
Arcane Signet
43%inclusion3 decks7 decks
-19%synergy
Thought Vessel
29%inclusion2 decks7 decks
3%synergy
Mind Stone
29%inclusion2 decks7 decks
0%synergy
Heraldic Banner
14%inclusion1 decks7 decks
9%synergy
Gilded Lotus
14%inclusion1 decks7 decks
9%synergy
Everflowing Chalice
14%inclusion1 decks7 decks
9%synergy
Charcoal Diamond
14%inclusion1 decks7 decks
-8%synergy
Fellwar Stone
14%inclusion1 decks7 decks
0%synergy
Phyrexian Atlas
14%inclusion1 decks7 decks
14%synergy
Glistening Sphere
14%inclusion1 decks7 decks
13%synergy
Prismatic Lens
14%inclusion1 decks7 decks
12%synergy
Lands
Swamp
100%inclusion7 decks7 decks
5%synergy
Command Tower
43%inclusion3 decks7 decks
37%synergy
Terramorphic Expanse
43%inclusion3 decks7 decks
40%synergy
Evolving Wilds
29%inclusion2 decks7 decks
25%synergy
Myriad Landscape
29%inclusion2 decks7 decks
3%synergy
Secluded Courtyard
29%inclusion2 decks7 decks
28%synergy
Exotic Orchard
14%inclusion1 decks7 decks
13%synergy
Spire of Industry
14%inclusion1 decks7 decks
14%synergy
Path of Ancestry
14%inclusion1 decks7 decks
9%synergy
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