Karumonix, the Rat King (Commander) - Expensive Upgraded Infect

Karumonix, the Rat King
Rank #401
8decks
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.
Deck Filters
Cardsphere
Archidekt
Commander Spellbook
Moxfield
Scryfall
MTGStocks
High Synergy Cards
Top Cards
Game Changers
Creatures
Instants
Sorceries
Utility Artifacts
Enchantments
Planeswalkers
Utility Lands
Mana Artifacts
Lands
Back to Top
Marrow-Gnawer
100%inclusion8 decks8 decks
97%synergy
Ashcoat of the Shadow Swarm
100%inclusion8 decks8 decks
96%synergy
Ichor Rats
88%inclusion7 decks8 decks
85%synergy
Cover of Darkness
88%inclusion7 decks8 decks
84%synergy
Swarmyard
88%inclusion7 decks8 decks
82%synergy
Piper of the Swarm
88%inclusion7 decks8 decks
81%synergy
Ogre Slumlord
88%inclusion7 decks8 decks
78%synergy
Blightbelly Rat
75%inclusion6 decks8 decks
72%synergy
Pack Rat
75%inclusion6 decks8 decks
69%synergy
Lord Skitter, Sewer King
75%inclusion6 decks8 decks
67%synergy
Top Cards
Dark Ritual
75%inclusion6 decks8 decks
8%synergy
Jet Medallion
75%inclusion6 decks8 decks
13%synergy
Lord Skitter's Butcher
63%inclusion5 decks8 decks
59%synergy
Infectious Inquiry
63%inclusion5 decks8 decks
60%synergy
Ratcatcher
63%inclusion5 decks8 decks
59%synergy
Herald's Horn
63%inclusion5 decks8 decks
57%synergy
Kindred Dominance
63%inclusion5 decks8 decks
58%synergy
Deadly Rollick
50%inclusion4 decks8 decks
25%synergy
Vraska, Betrayal's Sting
50%inclusion4 decks8 decks
47%synergy
Vraska's Fall
50%inclusion4 decks8 decks
47%synergy
Game Changers
Demonic Tutor
88%inclusion7 decks8 decks
60%synergy
Vampiric Tutor
50%inclusion4 decks8 decks
29%synergy
Imperial Seal
38%inclusion3 decks8 decks
31%synergy
Ancient Tomb
25%inclusion2 decks8 decks
13%synergy
Bolas's Citadel
25%inclusion2 decks8 decks
-3%synergy
Necropotence
25%inclusion2 decks8 decks
11%synergy
Creatures
Persistent Marshstalker
50%inclusion4 decks8 decks
47%synergy
Nashi, Moon Sage's Scion
50%inclusion4 decks8 decks
46%synergy
Tangled Colony
38%inclusion3 decks8 decks
35%synergy
Species Specialist
38%inclusion3 decks8 decks
34%synergy
Crypt Ghast
38%inclusion3 decks8 decks
-10%synergy
Septic Rats
38%inclusion3 decks8 decks
36%synergy
Gnat Miser
38%inclusion3 decks8 decks
35%synergy
Typhoid Rats
38%inclusion3 decks8 decks
34%synergy
Stronghold Rats
38%inclusion3 decks8 decks
34%synergy
Rat Colony
38%inclusion3 decks8 decks
32%synergy
Relentless Rats
25%inclusion2 decks8 decks
23%synergy
Burglar Rat
25%inclusion2 decks8 decks
14%synergy
Roaming Throne
25%inclusion2 decks8 decks
22%synergy
Ayara, First of Locthwain
25%inclusion2 decks8 decks
-0%synergy
Engine Rat
25%inclusion2 decks8 decks
23%synergy
Voracious Vermin
25%inclusion2 decks8 decks
22%synergy
Valley Rotcaller
25%inclusion2 decks8 decks
22%synergy
Nezumi Cutthroat
25%inclusion2 decks8 decks
24%synergy
Changeling Outcast
25%inclusion2 decks8 decks
20%synergy
Nezumi Informant
25%inclusion2 decks8 decks
19%synergy
Nezumi Bone-Reader
25%inclusion2 decks8 decks
24%synergy
Rancid Rats
25%inclusion2 decks8 decks
23%synergy
Rat King, Verminister
20%inclusion1 decks5 decks
17%synergy
Rat King, Pale Piper
20%inclusion1 decks5 decks
16%synergy
Refurbished Familiar
13%inclusion1 decks8 decks
10%synergy
Plague Stinger
13%inclusion1 decks8 decks
12%synergy
Tree of Perdition
13%inclusion1 decks8 decks
11%synergy
Crypt Rats
13%inclusion1 decks8 decks
8%synergy
Innocuous Rat
13%inclusion1 decks8 decks
11%synergy
Nezumi Graverobber
13%inclusion1 decks8 decks
11%synergy
Whispering Specter
13%inclusion1 decks8 decks
12%synergy
Rotting Rats
13%inclusion1 decks8 decks
9%synergy
Ravenous Rats
13%inclusion1 decks8 decks
11%synergy
Blood Artist
13%inclusion1 decks8 decks
-19%synergy
Morbid Opportunist
13%inclusion1 decks8 decks
-11%synergy
Crashing Drawbridge
13%inclusion1 decks8 decks
10%synergy
Gray Merchant of Asphodel
13%inclusion1 decks8 decks
-38%synergy
Mukotai Ambusher
13%inclusion1 decks8 decks
12%synergy
Nezumi Shortfang
13%inclusion1 decks8 decks
12%synergy
Adaptive Automaton
13%inclusion1 decks8 decks
12%synergy
Throat Slitter
13%inclusion1 decks8 decks
11%synergy
Ink-Eyes, Servant of Oni
13%inclusion1 decks8 decks
9%synergy
Zodiac Rat
13%inclusion1 decks8 decks
12%synergy
Locust Miser
13%inclusion1 decks8 decks
11%synergy
Zulaport Cutthroat
13%inclusion1 decks8 decks
-11%synergy
Mogis's Marauder
13%inclusion1 decks8 decks
12%synergy
Swarm of Rats
13%inclusion1 decks8 decks
10%synergy
Chittering Skitterling
13%inclusion1 decks8 decks
12%synergy
Grim Hireling
13%inclusion1 decks8 decks
8%synergy
Chittering Witch
13%inclusion1 decks8 decks
8%synergy
Instants
Village Rites
50%inclusion4 decks8 decks
24%synergy
Go for the Throat
38%inclusion3 decks8 decks
15%synergy
Culling the Weak
38%inclusion3 decks8 decks
20%synergy
Fell the Profane
25%inclusion2 decks8 decks
5%synergy
Whisper of the Dross
25%inclusion2 decks8 decks
22%synergy
Grim Affliction
25%inclusion2 decks8 decks
23%synergy
Cabal Ritual
25%inclusion2 decks8 decks
6%synergy
Sudden Spoiling
25%inclusion2 decks8 decks
17%synergy
Tragic Slip
25%inclusion2 decks8 decks
6%synergy
Withering Torment
25%inclusion2 decks8 decks
-6%synergy
Hagra Mauling
13%inclusion1 decks8 decks
8%synergy
Hero's Downfall
13%inclusion1 decks8 decks
6%synergy
Force of Despair
13%inclusion1 decks8 decks
5%synergy
Sheoldred's Edict
13%inclusion1 decks8 decks
-2%synergy
Imp's Mischief
13%inclusion1 decks8 decks
-13%synergy
Songs of the Damned
13%inclusion1 decks8 decks
7%synergy
Anoint with Affliction
13%inclusion1 decks8 decks
12%synergy
Defile
13%inclusion1 decks8 decks
-23%synergy
Doom Blade
13%inclusion1 decks8 decks
5%synergy
Withering Boon
13%inclusion1 decks8 decks
8%synergy
Bitter Triumph
13%inclusion1 decks8 decks
3%synergy
Raise the Draugr
13%inclusion1 decks8 decks
12%synergy
Undying Malice
13%inclusion1 decks8 decks
2%synergy
Darkness
13%inclusion1 decks8 decks
2%synergy
Malakir Rebirth
13%inclusion1 decks8 decks
-11%synergy
Baleful Mastery
13%inclusion1 decks8 decks
5%synergy
Plumb the Forbidden
13%inclusion1 decks8 decks
8%synergy
Corrupted Conviction
13%inclusion1 decks8 decks
0%synergy
Liliana's Triumph
13%inclusion1 decks8 decks
7%synergy
Curtains' Call
13%inclusion1 decks8 decks
11%synergy
Breathe Your Last
13%inclusion1 decks8 decks
11%synergy
Feign Death
13%inclusion1 decks8 decks
4%synergy
Sorceries
Feed the Swarm
50%inclusion4 decks8 decks
-0%synergy
Drown in Ichor
50%inclusion4 decks8 decks
46%synergy
Bloodline Bidding
40%inclusion2 decks5 decks
36%synergy
Diabolic Intent
38%inclusion3 decks8 decks
22%synergy
Bubbling Muck
38%inclusion3 decks8 decks
22%synergy
Swarmyard Massacre
38%inclusion3 decks8 decks
35%synergy
Diabolic Tutor
25%inclusion2 decks8 decks
11%synergy
Patriarch's Bidding
25%inclusion2 decks8 decks
21%synergy
Revenge of the Rats
25%inclusion2 decks8 decks
22%synergy
Phyresis Outbreak
25%inclusion2 decks8 decks
23%synergy
Agadeem's Awakening
25%inclusion2 decks8 decks
17%synergy
Night's Whisper
25%inclusion2 decks8 decks
-0%synergy
Exsanguinate
25%inclusion2 decks8 decks
0%synergy
Toxic Deluge
25%inclusion2 decks8 decks
-12%synergy
Grim Tutor
25%inclusion2 decks8 decks
14%synergy
Pact of the Serpent
25%inclusion2 decks8 decks
23%synergy
Damnable Pact
13%inclusion1 decks8 decks
9%synergy
Torment of Hailfire
13%inclusion1 decks8 decks
-2%synergy
Return from Extinction
13%inclusion1 decks8 decks
12%synergy
Echoing Return
13%inclusion1 decks8 decks
9%synergy
Infernal Tutor
13%inclusion1 decks8 decks
12%synergy
Blasphemous Edict
13%inclusion1 decks8 decks
-4%synergy
Reanimate
13%inclusion1 decks8 decks
-28%synergy
Call to the Netherworld
13%inclusion1 decks8 decks
11%synergy
Hideous Visage
13%inclusion1 decks8 decks
12%synergy
Phyrexian Tribute
13%inclusion1 decks8 decks
12%synergy
Sign in Blood
13%inclusion1 decks8 decks
-22%synergy
Beseech the Mirror
13%inclusion1 decks8 decks
6%synergy
Damnation
13%inclusion1 decks8 decks
-8%synergy
Disentomb
13%inclusion1 decks8 decks
11%synergy
Crippling Fear
13%inclusion1 decks8 decks
10%synergy
Utility Artifacts
Chronicle of Victory
60%inclusion3 decks5 decks
57%synergy
Bontu's Monument
50%inclusion4 decks8 decks
22%synergy
Whip of Erebos
38%inclusion3 decks8 decks
27%synergy
Skullclamp
38%inclusion3 decks8 decks
15%synergy
Expedition Map
38%inclusion3 decks8 decks
26%synergy
Thrumming Stone
38%inclusion3 decks8 decks
33%synergy
Lightning Greaves
38%inclusion3 decks8 decks
4%synergy
Icon of Ancestry
25%inclusion2 decks8 decks
24%synergy
Contagion Clasp
25%inclusion2 decks8 decks
23%synergy
Coat of Arms
25%inclusion2 decks8 decks
22%synergy
Akroma's Memorial
25%inclusion2 decks8 decks
24%synergy
Door of Destinies
25%inclusion2 decks8 decks
23%synergy
Swiftfoot Boots
25%inclusion2 decks8 decks
-7%synergy
Gathering Stone
20%inclusion1 decks5 decks
19%synergy
The Darkness Crystal
14%inclusion1 decks7 decks
-6%synergy
Genji Glove
14%inclusion1 decks7 decks
13%synergy
Campfire
13%inclusion1 decks8 decks
11%synergy
Perpetual Timepiece
13%inclusion1 decks8 decks
11%synergy
Soul-Guide Lantern
13%inclusion1 decks8 decks
12%synergy
Elixir of Immortality
13%inclusion1 decks8 decks
10%synergy
Mirror Box
13%inclusion1 decks8 decks
12%synergy
Contagion Engine
13%inclusion1 decks8 decks
11%synergy
Scroll Rack
13%inclusion1 decks8 decks
12%synergy
Cliffhaven Kitesail
13%inclusion1 decks8 decks
12%synergy
Sword of Truth and Justice
13%inclusion1 decks8 decks
12%synergy
Wishclaw Talisman
13%inclusion1 decks8 decks
6%synergy
Helm of the Host
13%inclusion1 decks8 decks
11%synergy
Thran Foundry
13%inclusion1 decks8 decks
12%synergy
Banner of Kinship
13%inclusion1 decks8 decks
10%synergy
Vanquisher's Banner
13%inclusion1 decks8 decks
9%synergy
Recon Craft Theta
13%inclusion1 decks8 decks
12%synergy
Sword of Hearth and Home
13%inclusion1 decks8 decks
11%synergy
Whispersilk Cloak
13%inclusion1 decks8 decks
7%synergy
Feldon's Cane
13%inclusion1 decks8 decks
12%synergy
Fireshrieker
13%inclusion1 decks8 decks
11%synergy
Mindcrank
13%inclusion1 decks8 decks
7%synergy
Commander's Plate
13%inclusion1 decks8 decks
6%synergy
Conjurer's Closet
13%inclusion1 decks8 decks
10%synergy
Thornbite Staff
13%inclusion1 decks8 decks
10%synergy
Lifeline
13%inclusion1 decks8 decks
12%synergy
Enchantments
Oversold Cemetery
50%inclusion4 decks8 decks
45%synergy
Phyrexian Arena
50%inclusion4 decks8 decks
11%synergy
Grave Pact
38%inclusion3 decks8 decks
18%synergy
Haunted One
25%inclusion2 decks8 decks
23%synergy
Bastion of Remembrance
25%inclusion2 decks8 decks
8%synergy
Black Market Connections
25%inclusion2 decks8 decks
0%synergy
Black Market
13%inclusion1 decks8 decks
-8%synergy
Phyrexian Reclamation
13%inclusion1 decks8 decks
3%synergy
Dictate of Erebos
13%inclusion1 decks8 decks
2%synergy
Exquisite Blood
13%inclusion1 decks8 decks
-1%synergy
Intimidation
13%inclusion1 decks8 decks
12%synergy
Infernal Tribute
13%inclusion1 decks8 decks
12%synergy
Dauthi Embrace
13%inclusion1 decks8 decks
11%synergy
Gate to Phyrexia
13%inclusion1 decks8 decks
12%synergy
Bandit's Talent
13%inclusion1 decks8 decks
7%synergy
Painful Quandary
13%inclusion1 decks8 decks
2%synergy
Lord Skitter's Blessing
13%inclusion1 decks8 decks
12%synergy
Bloodchief Ascension
13%inclusion1 decks8 decks
4%synergy
Nowhere to Run
13%inclusion1 decks8 decks
9%synergy
Dark Prophecy
13%inclusion1 decks8 decks
9%synergy
Necrogen Communion
13%inclusion1 decks8 decks
11%synergy
Planeswalkers
Liliana of the Dark Realms
25%inclusion2 decks8 decks
11%synergy
Utility Lands
Cabal Coffers
88%inclusion7 decks8 decks
33%synergy
Urborg, Tomb of Yawgmoth
75%inclusion6 decks8 decks
37%synergy
Cabal Stronghold
50%inclusion4 decks8 decks
16%synergy
Nykthos, Shrine to Nyx
50%inclusion4 decks8 decks
20%synergy
Rogue's Passage
50%inclusion4 decks8 decks
31%synergy
Secret Tunnel
50%inclusion3 decks6 decks
49%synergy
Bojuka Bog
38%inclusion3 decks8 decks
-10%synergy
Phyrexian Tower
38%inclusion3 decks8 decks
11%synergy
Crypt of Agadeem
38%inclusion3 decks8 decks
26%synergy
War Room
38%inclusion3 decks8 decks
22%synergy
Volrath's Stronghold
38%inclusion3 decks8 decks
34%synergy
Karn's Bastion
38%inclusion3 decks8 decks
34%synergy
Shizo, Death's Storehouse
25%inclusion2 decks8 decks
15%synergy
Takenuma, Abandoned Mire
25%inclusion2 decks8 decks
9%synergy
Mudflat Village
25%inclusion2 decks8 decks
22%synergy
Castle Locthwain
25%inclusion2 decks8 decks
8%synergy
Three Tree City
25%inclusion2 decks8 decks
20%synergy
Mortuary Mire
13%inclusion1 decks8 decks
-0%synergy
Soulstone Sanctuary
13%inclusion1 decks8 decks
12%synergy
Vesuva
13%inclusion1 decks8 decks
10%synergy
Inkmoth Nexus
13%inclusion1 decks8 decks
12%synergy
Mutavault
13%inclusion1 decks8 decks
12%synergy
Witch's Cottage
13%inclusion1 decks8 decks
-12%synergy
Inventors' Fair
13%inclusion1 decks8 decks
10%synergy
Deserted Temple
13%inclusion1 decks8 decks
8%synergy
Thespian's Stage
13%inclusion1 decks8 decks
8%synergy
Lake of the Dead
13%inclusion1 decks8 decks
7%synergy
Reliquary Tower
13%inclusion1 decks8 decks
-17%synergy
Strip Mine
13%inclusion1 decks8 decks
10%synergy
Access Tunnel
13%inclusion1 decks8 decks
10%synergy
Mana Artifacts
Sol Ring
88%inclusion7 decks8 decks
2%synergy
The Soul Stone
43%inclusion3 decks7 decks
27%synergy
Staff of Compleation
38%inclusion3 decks8 decks
36%synergy
Glistening Sphere
38%inclusion3 decks8 decks
36%synergy
Arcane Signet
25%inclusion2 decks8 decks
-36%synergy
Heraldic Banner
25%inclusion2 decks8 decks
20%synergy
Mind Stone
25%inclusion2 decks8 decks
-3%synergy
Gauntlet of Power
13%inclusion1 decks8 decks
9%synergy
Patchwork Banner
13%inclusion1 decks8 decks
8%synergy
Throne of Eldraine
13%inclusion1 decks8 decks
3%synergy
Worn Powerstone
13%inclusion1 decks8 decks
8%synergy
Liquimetal Torque
13%inclusion1 decks8 decks
10%synergy
Phyrexian Atlas
13%inclusion1 decks8 decks
12%synergy
Springleaf Drum
13%inclusion1 decks8 decks
10%synergy
Sceptre of Eternal Glory
13%inclusion1 decks8 decks
5%synergy
Lands
Swamp
100%inclusion8 decks8 decks
5%synergy
Cavern of Souls
63%inclusion5 decks8 decks
56%synergy
Path of Ancestry
50%inclusion4 decks8 decks
45%synergy
Fell the Profane
25%inclusion2 decks8 decks
5%synergy
Agadeem's Awakening
25%inclusion2 decks8 decks
17%synergy
Hagra Mauling
13%inclusion1 decks8 decks
8%synergy
Prismatic Vista
13%inclusion1 decks8 decks
10%synergy
Terramorphic Expanse
13%inclusion1 decks8 decks
10%synergy
Myriad Landscape
13%inclusion1 decks8 decks
-12%synergy
Urza's Cave
13%inclusion1 decks8 decks
4%synergy
Ash Barrens
13%inclusion1 decks8 decks
11%synergy
Malakir Rebirth
13%inclusion1 decks8 decks
-11%synergy
Evolving Wilds
13%inclusion1 decks8 decks
9%synergy
About UsContactPrivacy PolicyTerms of Service
Space Cow MediaArchidektCardsphereCommander SpellbookFABRECSpellvoid
Space Cow MediaArchidektCommander's Herald
Commander SpellbookFABRECSpellvoid
EDHREC is unofficial Fan Content permitted under the Fan Content Policy. Not approved/endorsed by Wizards. Portions of the materials used are property of Wizards of the Coast. ©Wizards of the Coast LLC.
next@15 test