Karumonix, the Rat King (Commander) - Expensive Upgraded

Karumonix, the Rat King
Rank #385
27decks
As CommanderAs CardAverage DeckDecks
Bracket
All12345
Budget
Any$$$$
Background image for Building Rat Typal With Marrow-Gnawer
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
New Cards
High Synergy Cards
Top Cards
Game Changers
Creatures
Instants
Sorceries
Utility Artifacts
Enchantments
Planeswalkers
Utility Lands
Mana Artifacts
Lands
Back to Top
Rat King, Verminister
23%inclusion3 decks13 decks
20%synergy
Rat King, Pale Piper
13%inclusion1 decks8 decks
8%synergy
Shredder's Technique
13%inclusion1 decks8 decks
9%synergy
High Synergy Cards
Marrow-Gnawer
89%inclusion24 decks27 decks
86%synergy
Ashcoat of the Shadow Swarm
78%inclusion21 decks27 decks
74%synergy
Piper of the Swarm
78%inclusion21 decks27 decks
71%synergy
Swarmyard
74%inclusion20 decks27 decks
68%synergy
Ichor Rats
70%inclusion19 decks27 decks
67%synergy
Pack Rat
70%inclusion19 decks27 decks
64%synergy
Rat Colony
67%inclusion18 decks27 decks
61%synergy
Ogre Slumlord
70%inclusion19 decks27 decks
60%synergy
Blightbelly Rat
63%inclusion17 decks27 decks
59%synergy
Thrumming Stone
59%inclusion16 decks27 decks
55%synergy
Top Cards
Dark Ritual
78%inclusion21 decks27 decks
11%synergy
Jet Medallion
78%inclusion21 decks27 decks
16%synergy
Bontu's Monument
67%inclusion18 decks27 decks
38%synergy
Phyrexian Arena
59%inclusion16 decks27 decks
19%synergy
Lord Skitter, Sewer King
59%inclusion16 decks27 decks
51%synergy
Deadly Rollick
59%inclusion16 decks27 decks
35%synergy
Skullclamp
56%inclusion15 decks27 decks
34%synergy
Herald's Horn
52%inclusion14 decks27 decks
46%synergy
Diabolic Intent
44%inclusion12 decks27 decks
30%synergy
Toxic Deluge
44%inclusion12 decks27 decks
8%synergy
Game Changers
Demonic Tutor
78%inclusion21 decks27 decks
50%synergy
Vampiric Tutor
63%inclusion17 decks27 decks
42%synergy
Bolas's Citadel
33%inclusion9 decks27 decks
5%synergy
The One Ring
26%inclusion7 decks27 decks
17%synergy
Imperial Seal
22%inclusion6 decks27 decks
15%synergy
Ancient Tomb
11%inclusion3 decks27 decks
-1%synergy
Necropotence
7.4%inclusion2 decks27 decks
-7%synergy
Chrome Mox
7.4%inclusion2 decks27 decks
1%synergy
Opposition Agent
7.4%inclusion2 decks27 decks
-2%synergy
Creatures
Ratcatcher
41%inclusion11 decks27 decks
37%synergy
Nashi, Moon Sage's Scion
41%inclusion11 decks27 decks
37%synergy
Tangled Colony
37%inclusion10 decks27 decks
34%synergy
Persistent Marshstalker
33%inclusion9 decks27 decks
30%synergy
Crypt Ghast
33%inclusion9 decks27 decks
-14%synergy
Crypt Rats
33%inclusion9 decks27 decks
29%synergy
Ink-Eyes, Servant of Oni
30%inclusion8 decks27 decks
26%synergy
Gnat Miser
30%inclusion8 decks27 decks
27%synergy
Lord Skitter's Butcher
26%inclusion7 decks27 decks
23%synergy
Species Specialist
26%inclusion7 decks27 decks
22%synergy
Nezumi Prowler
26%inclusion7 decks27 decks
24%synergy
Septic Rats
26%inclusion7 decks27 decks
24%synergy
Typhoid Rats
26%inclusion7 decks27 decks
22%synergy
Valley Rotcaller
26%inclusion7 decks27 decks
23%synergy
Relentless Rats
22%inclusion6 decks27 decks
20%synergy
Changeling Outcast
22%inclusion6 decks27 decks
17%synergy
Wave of Rats
22%inclusion6 decks27 decks
20%synergy
Nezumi Informant
22%inclusion6 decks27 decks
16%synergy
Rancid Rats
22%inclusion6 decks27 decks
20%synergy
Stronghold Rats
22%inclusion6 decks27 decks
18%synergy
Ayara, First of Locthwain
22%inclusion6 decks27 decks
-3%synergy
Gray Merchant of Asphodel
19%inclusion5 decks27 decks
-33%synergy
Swarm of Rats
19%inclusion5 decks27 decks
16%synergy
Voracious Vermin
19%inclusion5 decks27 decks
15%synergy
Locust Miser
19%inclusion5 decks27 decks
17%synergy
Undercity Dire Rat
17%inclusion4 decks23 decks
16%synergy
Chittering Witch
15%inclusion4 decks27 decks
10%synergy
Yawgmoth, Thran Physician
15%inclusion4 decks27 decks
5%synergy
Throat Slitter
15%inclusion4 decks27 decks
13%synergy
Engine Rat
12%inclusion3 decks26 decks
10%synergy
Rotting Rats
11%inclusion3 decks27 decks
8%synergy
Burglar Rat
11%inclusion3 decks27 decks
0%synergy
Roaming Throne
11%inclusion3 decks27 decks
8%synergy
Pestilence Rats
11%inclusion3 decks27 decks
9%synergy
Old Flitterfang
11%inclusion3 decks27 decks
10%synergy
Nezumi Graverobber
11%inclusion3 decks27 decks
10%synergy
Metallic Mimic
11%inclusion3 decks27 decks
10%synergy
Twisted Sewer-Witch
11%inclusion3 decks27 decks
10%synergy
Nezumi Bone-Reader
11%inclusion3 decks27 decks
10%synergy
Carrion Rats
11%inclusion3 decks27 decks
11%synergy
Midnight Scavengers
7.4%inclusion2 decks27 decks
7%synergy
Blood Artist
7.4%inclusion2 decks27 decks
-24%synergy
Zulaport Cutthroat
7.4%inclusion2 decks27 decks
-16%synergy
Drainpipe Vermin
7.4%inclusion2 decks27 decks
6%synergy
Okiba-Gang Shinobi
7.4%inclusion2 decks27 decks
6%synergy
Refurbished Familiar
7.4%inclusion2 decks27 decks
5%synergy
Ruthless Radrat
7.4%inclusion2 decks27 decks
7%synergy
Filth
7.4%inclusion2 decks27 decks
5%synergy
Adaptive Automaton
7.4%inclusion2 decks27 decks
6%synergy
Graf Rats
7.4%inclusion2 decks27 decks
7%synergy
Instants
Vraska's Fall
33%inclusion9 decks27 decks
30%synergy
Go for the Throat
33%inclusion9 decks27 decks
10%synergy
Culling the Weak
26%inclusion7 decks27 decks
10%synergy
Village Rites
22%inclusion6 decks27 decks
-3%synergy
Deadly Dispute
22%inclusion6 decks27 decks
-4%synergy
Withering Torment
19%inclusion5 decks26 decks
-12%synergy
Anoint with Affliction
19%inclusion5 decks27 decks
18%synergy
Cabal Ritual
19%inclusion5 decks27 decks
0%synergy
Fell the Profane
19%inclusion5 decks27 decks
0%synergy
Infernal Grasp
19%inclusion5 decks27 decks
-7%synergy
Defile
19%inclusion5 decks27 decks
-18%synergy
Tainted Strike
19%inclusion5 decks27 decks
15%synergy
Tragic Slip
15%inclusion4 decks27 decks
-5%synergy
Imp's Mischief
11%inclusion3 decks27 decks
-14%synergy
Corrupted Conviction
11%inclusion3 decks27 decks
-1%synergy
Sudden Spoiling
11%inclusion3 decks27 decks
2%synergy
Malakir Rebirth
11%inclusion3 decks27 decks
-12%synergy
Whisper of the Dross
7.4%inclusion2 decks27 decks
5%synergy
Rat Out
7.4%inclusion2 decks27 decks
6%synergy
Baleful Mastery
7.4%inclusion2 decks27 decks
-1%synergy
Dismember
7.4%inclusion2 decks27 decks
-3%synergy
Snuff Out
7.4%inclusion2 decks27 decks
-6%synergy
Sheoldred's Edict
7.4%inclusion2 decks27 decks
-7%synergy
Archenemy's Charm
5.0%inclusion1 decks20 decks
-4%synergy
Sorceries
Patriarch's Bidding
44%inclusion12 decks27 decks
40%synergy
Feed the Swarm
41%inclusion11 decks27 decks
-10%synergy
Kindred Dominance
41%inclusion11 decks27 decks
36%synergy
Revenge of the Rats
35%inclusion9 decks26 decks
32%synergy
Phyresis Outbreak
33%inclusion9 decks27 decks
32%synergy
Drown in Ichor
33%inclusion9 decks27 decks
29%synergy
Infectious Inquiry
33%inclusion9 decks27 decks
31%synergy
Grim Tutor
33%inclusion9 decks27 decks
22%synergy
Swarmyard Massacre
26%inclusion7 decks27 decks
24%synergy
Echoing Return
26%inclusion7 decks27 decks
23%synergy
Night's Whisper
22%inclusion6 decks27 decks
-2%synergy
Damnation
22%inclusion6 decks27 decks
2%synergy
Bloodline Bidding
21%inclusion3 decks14 decks
17%synergy
Reanimate
19%inclusion5 decks27 decks
-21%synergy
Diabolic Tutor
15%inclusion4 decks27 decks
0%synergy
Plague of Vermin
15%inclusion4 decks27 decks
12%synergy
Bubbling Muck
15%inclusion4 decks27 decks
-1%synergy
Sign in Blood
15%inclusion4 decks27 decks
-21%synergy
Blasphemous Edict
12%inclusion3 decks26 decks
-5%synergy
Victimize
11%inclusion3 decks27 decks
-16%synergy
Exsanguinate
11%inclusion3 decks27 decks
-13%synergy
Insatiable Avarice
11%inclusion3 decks27 decks
-1%synergy
Torment of Hailfire
11%inclusion3 decks27 decks
-4%synergy
Living Death
11%inclusion3 decks27 decks
1%synergy
Agadeem's Awakening
11%inclusion3 decks27 decks
4%synergy
Scheming Symmetry
11%inclusion3 decks27 decks
7%synergy
Read the Bones
7.4%inclusion2 decks27 decks
-10%synergy
Mutilate
7.4%inclusion2 decks27 decks
-10%synergy
Profane Tutor
7.4%inclusion2 decks27 decks
3%synergy
Haunting Voyage
7.4%inclusion2 decks27 decks
6%synergy
Geth's Summons
7.4%inclusion2 decks27 decks
7%synergy
Rise of the Dark Realms
7.4%inclusion2 decks27 decks
-5%synergy
Pact of the Serpent
7.4%inclusion2 decks27 decks
6%synergy
Behold the Sinister Six!
5.9%inclusion1 decks17 decks
5%synergy
Utility Artifacts
Lightning Greaves
30%inclusion8 decks27 decks
-4%synergy
Sensei's Divining Top
22%inclusion6 decks27 decks
14%synergy
Vanquisher's Banner
22%inclusion6 decks27 decks
18%synergy
The Darkness Crystal
22%inclusion5 decks23 decks
2%synergy
Phyrexian Altar
19%inclusion5 decks27 decks
5%synergy
Eldrazi Monument
19%inclusion5 decks27 decks
17%synergy
Coat of Arms
19%inclusion5 decks27 decks
16%synergy
Ashnod's Altar
15%inclusion4 decks27 decks
-5%synergy
Sword of Truth and Justice
15%inclusion4 decks27 decks
14%synergy
Chronicle of Victory
14%inclusion2 decks14 decks
11%synergy
Banner of Kinship
12%inclusion3 decks26 decks
9%synergy
Whispersilk Cloak
11%inclusion3 decks27 decks
5%synergy
Swiftfoot Boots
11%inclusion3 decks27 decks
-20%synergy
Contagion Engine
11%inclusion3 decks27 decks
9%synergy
Whip of Erebos
11%inclusion3 decks27 decks
0%synergy
Wishclaw Talisman
11%inclusion3 decks27 decks
4%synergy
Expedition Map
11%inclusion3 decks27 decks
-1%synergy
Contagion Clasp
11%inclusion3 decks27 decks
9%synergy
Door of Destinies
11%inclusion3 decks27 decks
9%synergy
Soul-Guide Lantern
7.4%inclusion2 decks27 decks
7%synergy
Recon Craft Theta
7.4%inclusion2 decks27 decks
7%synergy
Akroma's Memorial
7.4%inclusion2 decks27 decks
7%synergy
Thornbite Staff
7.4%inclusion2 decks27 decks
5%synergy
Helm of the Host
7.4%inclusion2 decks27 decks
6%synergy
Commander's Plate
7.4%inclusion2 decks27 decks
2%synergy
Grafted Exoskeleton
7.4%inclusion2 decks27 decks
6%synergy
Mirror Box
7.4%inclusion2 decks27 decks
7%synergy
Urza's Incubator
7.4%inclusion2 decks27 decks
5%synergy
Gathering Stone
7.1%inclusion1 decks14 decks
6%synergy
Enchantments
Cover of Darkness
44%inclusion12 decks27 decks
42%synergy
Grave Pact
41%inclusion11 decks27 decks
21%synergy
Haunted One
30%inclusion8 decks27 decks
27%synergy
Black Market
26%inclusion7 decks27 decks
5%synergy
Black Market Connections
26%inclusion7 decks27 decks
2%synergy
The Meathook Massacre
19%inclusion5 decks27 decks
1%synergy
Oversold Cemetery
19%inclusion5 decks27 decks
13%synergy
Intimidation
11%inclusion3 decks27 decks
11%synergy
Dictate of Erebos
11%inclusion3 decks27 decks
0%synergy
Exquisite Blood
7.4%inclusion2 decks27 decks
-6%synergy
Oubliette
7.4%inclusion2 decks27 decks
4%synergy
Dark Prophecy
7.4%inclusion2 decks27 decks
4%synergy
Necrogen Communion
7.4%inclusion2 decks27 decks
6%synergy
Bastion of Remembrance
7.4%inclusion2 decks27 decks
-10%synergy
Phyrexian Reclamation
7.4%inclusion2 decks27 decks
-3%synergy
No Mercy
7.4%inclusion2 decks27 decks
0%synergy
Planeswalkers
Liliana of the Dark Realms
30%inclusion8 decks27 decks
16%synergy
Vraska, Betrayal's Sting
30%inclusion8 decks27 decks
27%synergy
Utility Lands
Cabal Coffers
89%inclusion24 decks27 decks
34%synergy
Urborg, Tomb of Yawgmoth
81%inclusion22 decks27 decks
44%synergy
Nykthos, Shrine to Nyx
56%inclusion15 decks27 decks
26%synergy
Cabal Stronghold
48%inclusion13 decks27 decks
13%synergy
Three Tree City
48%inclusion13 decks27 decks
44%synergy
Castle Locthwain
44%inclusion12 decks27 decks
27%synergy
Phyrexian Tower
44%inclusion12 decks27 decks
19%synergy
Bojuka Bog
41%inclusion11 decks27 decks
-6%synergy
Shizo, Death's Storehouse
33%inclusion9 decks27 decks
23%synergy
Mudflat Village
33%inclusion9 decks27 decks
31%synergy
Reliquary Tower
33%inclusion9 decks27 decks
3%synergy
Witch's Cottage
30%inclusion8 decks27 decks
5%synergy
War Room
30%inclusion8 decks27 decks
13%synergy
Karn's Bastion
30%inclusion8 decks27 decks
26%synergy
Rogue's Passage
26%inclusion7 decks27 decks
7%synergy
Takenuma, Abandoned Mire
22%inclusion6 decks27 decks
7%synergy
Crypt of Agadeem
22%inclusion6 decks27 decks
11%synergy
Secret Tunnel
19%inclusion3 decks16 decks
17%synergy
Mortuary Mire
19%inclusion5 decks27 decks
5%synergy
Minas Morgul, Dark Fortress
19%inclusion5 decks27 decks
15%synergy
Vesuva
15%inclusion4 decks27 decks
12%synergy
Spymaster's Vault
15%inclusion4 decks27 decks
5%synergy
The Black Gate
15%inclusion4 decks27 decks
11%synergy
Urza's Saga
15%inclusion4 decks27 decks
7%synergy
Volrath's Stronghold
15%inclusion4 decks27 decks
11%synergy
Inkmoth Nexus
11%inclusion3 decks27 decks
10%synergy
Mutavault
11%inclusion3 decks27 decks
10%synergy
Access Tunnel
11%inclusion3 decks27 decks
8%synergy
Deserted Temple
7.4%inclusion2 decks27 decks
3%synergy
Lake of the Dead
7.4%inclusion2 decks27 decks
2%synergy
Thespian's Stage
7.4%inclusion2 decks27 decks
2%synergy
Buried Ruin
7.4%inclusion2 decks27 decks
2%synergy
Susur Secundi, Void Altar
5.0%inclusion1 decks20 decks
-2%synergy
Mana Artifacts
Sol Ring
96%inclusion26 decks27 decks
10%synergy
Arcane Signet
59%inclusion16 decks27 decks
-3%synergy
Glistening Sphere
33%inclusion9 decks27 decks
32%synergy
The Soul Stone
32%inclusion6 decks19 decks
17%synergy
Staff of Compleation
22%inclusion6 decks27 decks
21%synergy
Patchwork Banner
15%inclusion4 decks27 decks
10%synergy
Nyx Lotus
15%inclusion4 decks27 decks
8%synergy
Throne of Eldraine
15%inclusion4 decks27 decks
5%synergy
Mind Stone
11%inclusion3 decks27 decks
-18%synergy
The Eternity Elevator
10%inclusion2 decks20 decks
9%synergy
Caged Sun
7.4%inclusion2 decks27 decks
-4%synergy
Gauntlet of Power
7.4%inclusion2 decks27 decks
4%synergy
Lotus Petal
7.4%inclusion2 decks27 decks
0%synergy
Heraldic Banner
7.4%inclusion2 decks27 decks
2%synergy
Charcoal Diamond
7.4%inclusion2 decks27 decks
-15%synergy
Fellwar Stone
7.4%inclusion2 decks27 decks
-7%synergy
Sceptre of Eternal Glory
7.4%inclusion2 decks27 decks
-1%synergy
Firdoch Core
7.1%inclusion1 decks14 decks
7%synergy
Lands
Swamp
96%inclusion26 decks27 decks
1%synergy
Cavern of Souls
63%inclusion17 decks27 decks
56%synergy
Path of Ancestry
33%inclusion9 decks27 decks
28%synergy
Fell the Profane
19%inclusion5 decks27 decks
0%synergy
Urza's Cave
11%inclusion3 decks27 decks
3%synergy
Prismatic Vista
11%inclusion3 decks27 decks
9%synergy
Myriad Landscape
11%inclusion3 decks27 decks
-15%synergy
Agadeem's Awakening
11%inclusion3 decks27 decks
4%synergy
Malakir Rebirth
11%inclusion3 decks27 decks
-12%synergy
Polluted Delta
7.4%inclusion2 decks27 decks
4%synergy
Marsh Flats
7.4%inclusion2 decks27 decks
4%synergy
Fabled Passage
7.4%inclusion2 decks27 decks
6%synergy
Abundant Countryside
7.1%inclusion1 decks14 decks
7%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