Karumonix, the Rat King (Commander) - Combo

Karumonix, the Rat King
Rank #412
9decks
As CommanderAs CardAverage DeckDecks
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1
234
5
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$
$$$
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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Marrow-Gnawer
78%inclusion7 decks9 decks
74%synergy
Blightbelly Rat
67%inclusion6 decks9 decks
63%synergy
Thrumming Stone
67%inclusion6 decks9 decks
63%synergy
Piper of the Swarm
67%inclusion6 decks9 decks
60%synergy
Rat Colony
56%inclusion5 decks9 decks
50%synergy
Lord Skitter, Sewer King
56%inclusion5 decks9 decks
48%synergy
Rancid Rats
44%inclusion4 decks9 decks
42%synergy
Infectious Inquiry
44%inclusion4 decks9 decks
42%synergy
Vraska's Fall
44%inclusion4 decks9 decks
41%synergy
Karn's Bastion
44%inclusion4 decks9 decks
41%synergy
Top Cards
Dark Ritual
67%inclusion6 decks9 decks
-1%synergy
Jet Medallion
56%inclusion5 decks9 decks
-6%synergy
Ayara, First of Locthwain
44%inclusion4 decks9 decks
19%synergy
Pack Rat
44%inclusion4 decks9 decks
39%synergy
Bontu's Monument
44%inclusion4 decks9 decks
16%synergy
Game Changers
Demonic Tutor
56%inclusion5 decks9 decks
29%synergy
Vampiric Tutor
56%inclusion5 decks9 decks
35%synergy
Bolas's Citadel
22%inclusion2 decks9 decks
-6%synergy
Chrome Mox
22%inclusion2 decks9 decks
16%synergy
Imperial Seal
11%inclusion1 decks9 decks
4%synergy
Ancient Tomb
11%inclusion1 decks9 decks
-0%synergy
The One Ring
11%inclusion1 decks9 decks
2%synergy
Mana Vault
11%inclusion1 decks9 decks
5%synergy
Necropotence
11%inclusion1 decks9 decks
-3%synergy
Ad Nauseam
11%inclusion1 decks9 decks
8%synergy
Creatures
Ogre Slumlord
33%inclusion3 decks9 decks
24%synergy
Crypt Rats
33%inclusion3 decks9 decks
29%synergy
Relentless Rats
33%inclusion3 decks9 decks
32%synergy
Tangled Colony
33%inclusion3 decks9 decks
30%synergy
Lord Skitter's Butcher
33%inclusion3 decks9 decks
30%synergy
Ashcoat of the Shadow Swarm
33%inclusion3 decks9 decks
30%synergy
Typhoid Rats
33%inclusion3 decks9 decks
30%synergy
Ichor Rats
33%inclusion3 decks9 decks
31%synergy
Bog Rats
22%inclusion2 decks9 decks
22%synergy
Mirkwood Bats
22%inclusion2 decks9 decks
14%synergy
Blood Artist
22%inclusion2 decks9 decks
-9%synergy
Gray Merchant of Asphodel
22%inclusion2 decks9 decks
-28%synergy
Nezumi Bladeblesser
22%inclusion2 decks9 decks
22%synergy
Razortooth Rats
22%inclusion2 decks9 decks
22%synergy
Zulaport Cutthroat
22%inclusion2 decks9 decks
-1%synergy
Chittering Skitterling
22%inclusion2 decks9 decks
21%synergy
Chittering Witch
22%inclusion2 decks9 decks
18%synergy
Reassembling Skeleton
22%inclusion2 decks9 decks
5%synergy
Crypt Ghast
22%inclusion2 decks9 decks
-25%synergy
Pitiless Plunderer
22%inclusion2 decks9 decks
2%synergy
Stronghold Rats
22%inclusion2 decks9 decks
19%synergy
Old Flitterfang
22%inclusion2 decks9 decks
21%synergy
Undercity Dire Rat
14%inclusion1 decks7 decks
13%synergy
Jade-Cast Sentinel
13%inclusion1 decks8 decks
12%synergy
Core Prowler
11%inclusion1 decks9 decks
11%synergy
Ghoulcaller Gisa
11%inclusion1 decks9 decks
6%synergy
Rabid Rats
11%inclusion1 decks9 decks
11%synergy
Dread Presence
11%inclusion1 decks9 decks
-2%synergy
Pestilent Syphoner
11%inclusion1 decks9 decks
11%synergy
Troll of Khazad-dûm
11%inclusion1 decks9 decks
9%synergy
Wick's Patrol
11%inclusion1 decks9 decks
11%synergy
Morbid Opportunist
11%inclusion1 decks9 decks
-13%synergy
Thornplate Intimidator
11%inclusion1 decks9 decks
10%synergy
Ruthless Radrat
11%inclusion1 decks9 decks
10%synergy
Sheoldred, the Apocalypse
11%inclusion1 decks9 decks
-4%synergy
Nadier's Nightblade
11%inclusion1 decks9 decks
9%synergy
Mukotai Ambusher
11%inclusion1 decks9 decks
10%synergy
Blood Seeker
11%inclusion1 decks9 decks
10%synergy
Nadier, Agent of the Duskenel
11%inclusion1 decks9 decks
11%synergy
Endrek Sahr, Master Breeder
11%inclusion1 decks9 decks
5%synergy
Insatiable Frugivore
11%inclusion1 decks9 decks
11%synergy
Drivnod, Carnage Dominus
11%inclusion1 decks9 decks
4%synergy
Species Specialist
11%inclusion1 decks9 decks
8%synergy
Gloomfang Mauler
11%inclusion1 decks9 decks
11%synergy
Mikaeus, the Unhallowed
11%inclusion1 decks9 decks
4%synergy
Zodiac Rat
11%inclusion1 decks9 decks
11%synergy
Unstoppable Slasher
11%inclusion1 decks9 decks
6%synergy
Stinging Hivemaster
11%inclusion1 decks9 decks
11%synergy
Grim Haruspex
11%inclusion1 decks9 decks
3%synergy
Shirei, Shizo's Caretaker
11%inclusion1 decks9 decks
11%synergy
Instants
Culling the Weak
33%inclusion3 decks9 decks
15%synergy
Murder
33%inclusion3 decks9 decks
24%synergy
Deadly Rollick
22%inclusion2 decks9 decks
-4%synergy
Whisper of the Dross
22%inclusion2 decks9 decks
20%synergy
Go for the Throat
22%inclusion2 decks9 decks
-0%synergy
Snuff Out
22%inclusion2 decks9 decks
8%synergy
Village Rites
22%inclusion2 decks9 decks
-4%synergy
Deadly Dispute
22%inclusion2 decks9 decks
-5%synergy
Cabal Ritual
22%inclusion2 decks9 decks
3%synergy
Infernal Grasp
22%inclusion2 decks9 decks
-3%synergy
Dismember
22%inclusion2 decks9 decks
12%synergy
Zuko's Conviction
20%inclusion1 decks5 decks
19%synergy
Fight On!
14%inclusion1 decks7 decks
12%synergy
Astarion's Thirst
11%inclusion1 decks9 decks
10%synergy
Sacrifice
11%inclusion1 decks9 decks
6%synergy
Cut Down
11%inclusion1 decks9 decks
8%synergy
Entomb
11%inclusion1 decks9 decks
-2%synergy
Rat Out
11%inclusion1 decks9 decks
10%synergy
Defile
11%inclusion1 decks9 decks
-24%synergy
You Are Already Dead
11%inclusion1 decks9 decks
10%synergy
Fake Your Own Death
11%inclusion1 decks9 decks
3%synergy
Black Sun's Twilight
11%inclusion1 decks9 decks
8%synergy
Plumb the Forbidden
11%inclusion1 decks9 decks
7%synergy
Corrupted Conviction
11%inclusion1 decks9 decks
-1%synergy
Ob Nixilis's Cruelty
11%inclusion1 decks9 decks
11%synergy
Cast Down
11%inclusion1 decks9 decks
10%synergy
Szat's Will
11%inclusion1 decks9 decks
9%synergy
Tragic Slip
11%inclusion1 decks9 decks
-8%synergy
Withering Torment
11%inclusion1 decks9 decks
-21%synergy
Sorceries
Toxic Deluge
33%inclusion3 decks9 decks
-4%synergy
Drown in Ichor
33%inclusion3 decks9 decks
30%synergy
Diabolic Intent
22%inclusion2 decks9 decks
7%synergy
Vat Emergence
22%inclusion2 decks9 decks
21%synergy
Bone Splinters
22%inclusion2 decks9 decks
20%synergy
Diabolic Tutor
22%inclusion2 decks9 decks
9%synergy
Phyresis Outbreak
22%inclusion2 decks9 decks
21%synergy
Feed the Swarm
22%inclusion2 decks9 decks
-28%synergy
Echoing Return
22%inclusion2 decks9 decks
19%synergy
Exsanguinate
22%inclusion2 decks9 decks
-2%synergy
Caress of Phyrexia
22%inclusion2 decks9 decks
22%synergy
Decree of Pain
22%inclusion2 decks9 decks
17%synergy
Reanimate
22%inclusion2 decks9 decks
-19%synergy
Sign in Blood
22%inclusion2 decks9 decks
-13%synergy
Pact of the Serpent
22%inclusion2 decks9 decks
21%synergy
Spread the Sickness
11%inclusion1 decks9 decks
10%synergy
Soul Transfer
11%inclusion1 decks9 decks
11%synergy
Peer into the Abyss
11%inclusion1 decks9 decks
1%synergy
Collective Brutality
11%inclusion1 decks9 decks
10%synergy
Victimize
11%inclusion1 decks9 decks
-17%synergy
Spark Harvest
11%inclusion1 decks9 decks
10%synergy
Patriarch's Bidding
11%inclusion1 decks9 decks
7%synergy
Come Back Wrong
11%inclusion1 decks9 decks
9%synergy
Torment of Hailfire
11%inclusion1 decks9 decks
-4%synergy
Final Act
11%inclusion1 decks9 decks
10%synergy
Haunting Voyage
11%inclusion1 decks9 decks
10%synergy
Dread Return
11%inclusion1 decks9 decks
-1%synergy
Writ of Return
11%inclusion1 decks9 decks
11%synergy
Lash of the Balrog
11%inclusion1 decks9 decks
10%synergy
Infernal Tutor
11%inclusion1 decks9 decks
11%synergy
Mutilate
11%inclusion1 decks9 decks
-4%synergy
Blasphemous Edict
11%inclusion1 decks9 decks
-5%synergy
Bone Shards
11%inclusion1 decks9 decks
8%synergy
Sadistic Shell Game
11%inclusion1 decks9 decks
11%synergy
Fortuitous Find
11%inclusion1 decks9 decks
10%synergy
In Garruk's Wake
11%inclusion1 decks9 decks
8%synergy
Beacon of Unrest
11%inclusion1 decks9 decks
8%synergy
Lab Rats
11%inclusion1 decks9 decks
11%synergy
Beseech the Mirror
11%inclusion1 decks9 decks
4%synergy
Raise Dead
11%inclusion1 decks9 decks
10%synergy
Kindred Dominance
11%inclusion1 decks9 decks
6%synergy
Final Vengeance
11%inclusion1 decks9 decks
10%synergy
Assassinate
11%inclusion1 decks9 decks
11%synergy
Damnation
11%inclusion1 decks9 decks
-9%synergy
Cruel Tutor
11%inclusion1 decks9 decks
10%synergy
Let's Play a Game
11%inclusion1 decks9 decks
9%synergy
Disentomb
11%inclusion1 decks9 decks
10%synergy
Grim Tutor
11%inclusion1 decks9 decks
-0%synergy
Plague of Vermin
11%inclusion1 decks9 decks
9%synergy
Utility Artifacts
Ashnod's Altar
33%inclusion3 decks9 decks
13%synergy
Thornbite Staff
33%inclusion3 decks9 decks
31%synergy
Contagion Clasp
22%inclusion2 decks9 decks
20%synergy
Contagion Engine
22%inclusion2 decks9 decks
21%synergy
Skullclamp
22%inclusion2 decks9 decks
-0%synergy
Phyrexian Altar
22%inclusion2 decks9 decks
8%synergy
Akroma's Memorial
22%inclusion2 decks9 decks
21%synergy
Lightning Greaves
22%inclusion2 decks9 decks
-12%synergy
Elixir of Immortality
11%inclusion1 decks9 decks
9%synergy
Armillary Sphere
11%inclusion1 decks9 decks
11%synergy
The Immortal Sun
11%inclusion1 decks9 decks
11%synergy
Bloodsoaked Altar
11%inclusion1 decks9 decks
11%synergy
Wishclaw Talisman
11%inclusion1 decks9 decks
4%synergy
Stoneforge Masterwork
11%inclusion1 decks9 decks
11%synergy
Expedition Map
11%inclusion1 decks9 decks
0%synergy
Whispersilk Cloak
11%inclusion1 decks9 decks
5%synergy
Maskwood Nexus
11%inclusion1 decks9 decks
10%synergy
Door of Destinies
11%inclusion1 decks9 decks
9%synergy
Mask of Griselbrand
11%inclusion1 decks9 decks
8%synergy
Locket of Yesterdays
11%inclusion1 decks9 decks
11%synergy
Herald's Horn
11%inclusion1 decks9 decks
6%synergy
Swiftfoot Boots
11%inclusion1 decks9 decks
-20%synergy
Executioner's Capsule
11%inclusion1 decks9 decks
11%synergy
Witch's Cauldron
11%inclusion1 decks9 decks
10%synergy
Altar of Dementia
11%inclusion1 decks9 decks
5%synergy
Welding Jar
11%inclusion1 decks9 decks
11%synergy
Grafted Exoskeleton
11%inclusion1 decks9 decks
10%synergy
Enchantments
Dictate of Erebos
33%inclusion3 decks9 decks
22%synergy
Black Market Connections
33%inclusion3 decks9 decks
8%synergy
Phyrexian Arena
33%inclusion3 decks9 decks
-6%synergy
Black Market
22%inclusion2 decks9 decks
2%synergy
Grave Pact
22%inclusion2 decks9 decks
3%synergy
Sanguine Bond
22%inclusion2 decks9 decks
11%synergy
Phyresis
22%inclusion2 decks9 decks
20%synergy
Animate Dead
22%inclusion2 decks9 decks
5%synergy
Oubliette
22%inclusion2 decks9 decks
20%synergy
Cover of Darkness
22%inclusion2 decks9 decks
19%synergy
Leyline of the Void
22%inclusion2 decks9 decks
21%synergy
Necrogen Communion
22%inclusion2 decks9 decks
21%synergy
Greed
11%inclusion1 decks9 decks
5%synergy
Underworld Connections
11%inclusion1 decks9 decks
9%synergy
Contamination
11%inclusion1 decks9 decks
8%synergy
Phyrexian Reclamation
11%inclusion1 decks9 decks
1%synergy
Necromancy
11%inclusion1 decks9 decks
6%synergy
Death Watch
11%inclusion1 decks9 decks
11%synergy
Seal of Doom
11%inclusion1 decks9 decks
11%synergy
Ill-Gotten Inheritance
11%inclusion1 decks9 decks
11%synergy
No Mercy
11%inclusion1 decks9 decks
4%synergy
Painful Quandary
11%inclusion1 decks9 decks
1%synergy
Bastion of Remembrance
11%inclusion1 decks9 decks
-6%synergy
Lord Skitter's Blessing
11%inclusion1 decks9 decks
10%synergy
Unholy Indenture
11%inclusion1 decks9 decks
11%synergy
Inevitable End
11%inclusion1 decks9 decks
11%synergy
Oppression
11%inclusion1 decks9 decks
4%synergy
Planeswalkers
Vraska, Betrayal's Sting
11%inclusion1 decks9 decks
9%synergy
Ob Nixilis, the Hate-Twisted
11%inclusion1 decks9 decks
9%synergy
Utility Lands
Bojuka Bog
56%inclusion5 decks9 decks
8%synergy
Reliquary Tower
56%inclusion5 decks9 decks
26%synergy
Cabal Coffers
44%inclusion4 decks9 decks
-10%synergy
Swarmyard
33%inclusion3 decks9 decks
28%synergy
Urborg, Tomb of Yawgmoth
33%inclusion3 decks9 decks
-4%synergy
Cabal Stronghold
22%inclusion2 decks9 decks
-12%synergy
Nykthos, Shrine to Nyx
22%inclusion2 decks9 decks
-8%synergy
Three Tree City
22%inclusion2 decks9 decks
17%synergy
Rogue's Passage
22%inclusion2 decks9 decks
3%synergy
Hidden Necropolis
22%inclusion2 decks9 decks
21%synergy
Secret Tunnel
20%inclusion1 decks5 decks
19%synergy
Wasteland
11%inclusion1 decks9 decks
10%synergy
Phyrexian Tower
11%inclusion1 decks9 decks
-15%synergy
Underdark Rift
11%inclusion1 decks9 decks
11%synergy
Buried Ruin
11%inclusion1 decks9 decks
6%synergy
Blast Zone
11%inclusion1 decks9 decks
9%synergy
Arid Archway
11%inclusion1 decks9 decks
11%synergy
Vesuva
11%inclusion1 decks9 decks
8%synergy
Inkmoth Nexus
11%inclusion1 decks9 decks
10%synergy
Spymaster's Vault
11%inclusion1 decks9 decks
1%synergy
Mutavault
11%inclusion1 decks9 decks
10%synergy
The Dross Pits
11%inclusion1 decks9 decks
10%synergy
Minas Morgul, Dark Fortress
11%inclusion1 decks9 decks
8%synergy
Cavernous Maw
11%inclusion1 decks9 decks
11%synergy
Volatile Fault
11%inclusion1 decks9 decks
10%synergy
Deserted Temple
11%inclusion1 decks9 decks
7%synergy
Temple of the False God
11%inclusion1 decks9 decks
4%synergy
Leechridden Swamp
11%inclusion1 decks9 decks
8%synergy
Sandstorm Verge
11%inclusion1 decks9 decks
11%synergy
Mana Artifacts
Sol Ring
78%inclusion7 decks9 decks
-8%synergy
Arcane Signet
33%inclusion3 decks9 decks
-28%synergy
Staff of Compleation
22%inclusion2 decks9 decks
21%synergy
White Lotus Tile
20%inclusion1 decks5 decks
19%synergy
Caged Sun
11%inclusion1 decks9 decks
1%synergy
Commander's Sphere
11%inclusion1 decks9 decks
4%synergy
Gauntlet of Power
11%inclusion1 decks9 decks
8%synergy
Glistening Sphere
11%inclusion1 decks9 decks
10%synergy
Lotus Petal
11%inclusion1 decks9 decks
4%synergy
Mox Amber
11%inclusion1 decks9 decks
7%synergy
Fellwar Stone
11%inclusion1 decks9 decks
-3%synergy
Gilded Lotus
11%inclusion1 decks9 decks
6%synergy
Phyrexian Atlas
11%inclusion1 decks9 decks
11%synergy
Extraplanar Lens
11%inclusion1 decks9 decks
6%synergy
Mox Diamond
11%inclusion1 decks9 decks
7%synergy
Lands
Swamp
100%inclusion9 decks9 decks
5%synergy
Cavern of Souls
22%inclusion2 decks9 decks
15%synergy
Path of Ancestry
22%inclusion2 decks9 decks
17%synergy
Prismatic Vista
11%inclusion1 decks9 decks
9%synergy
Command Tower
11%inclusion1 decks9 decks
5%synergy
The Seedcore
11%inclusion1 decks9 decks
11%synergy
Mirrex
11%inclusion1 decks9 decks
11%synergy
Unclaimed Territory
11%inclusion1 decks9 decks
11%synergy
Verdant Catacombs
11%inclusion1 decks9 decks
8%synergy
Marsh Flats
11%inclusion1 decks9 decks
7%synergy
Polluted Delta
11%inclusion1 decks9 decks
7%synergy
Crystal Grotto
11%inclusion1 decks9 decks
11%synergy
Bloodstained Mire
11%inclusion1 decks9 decks
7%synergy
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