Karumonix, the Rat King (Commander) - Upgraded Rats

Karumonix, the Rat King
Rank #383
24decks
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
Ichor Rats
92%inclusion22 decks24 decks
89%synergy
Blightbelly Rat
92%inclusion22 decks24 decks
88%synergy
Infectious Inquiry
88%inclusion21 decks24 decks
85%synergy
Piper of the Swarm
88%inclusion21 decks24 decks
81%synergy
Marrow-Gnawer
83%inclusion20 decks24 decks
80%synergy
Vraska's Fall
79%inclusion19 decks24 decks
76%synergy
Karn's Bastion
75%inclusion18 decks24 decks
71%synergy
Lord Skitter, Sewer King
79%inclusion19 decks24 decks
71%synergy
Ogre Slumlord
79%inclusion19 decks24 decks
69%synergy
Septic Rats
71%inclusion17 decks24 decks
69%synergy
Top Cards
Drown in Ichor
71%inclusion17 decks24 decks
67%synergy
Pack Rat
67%inclusion16 decks24 decks
61%synergy
Tangled Colony
63%inclusion15 decks24 decks
59%synergy
Dark Ritual
63%inclusion15 decks24 decks
-4%synergy
Herald's Horn
63%inclusion15 decks24 decks
57%synergy
Stronghold Rats
63%inclusion15 decks24 decks
59%synergy
Whisper of the Dross
58%inclusion14 decks24 decks
56%synergy
Crypt Rats
54%inclusion13 decks24 decks
50%synergy
Phyresis Outbreak
54%inclusion13 decks24 decks
52%synergy
Burglar Rat
54%inclusion13 decks24 decks
43%synergy
Game Changers
Vampiric Tutor
38%inclusion9 decks24 decks
17%synergy
Demonic Tutor
29%inclusion7 decks24 decks
2%synergy
Bolas's Citadel
8.3%inclusion2 decks24 decks
-20%synergy
Creatures
Lord Skitter's Butcher
54%inclusion13 decks24 decks
51%synergy
Rancid Rats
54%inclusion13 decks24 decks
52%synergy
Persistent Marshstalker
50%inclusion12 decks24 decks
47%synergy
Voracious Vermin
50%inclusion12 decks24 decks
47%synergy
Ratcatcher
50%inclusion12 decks24 decks
47%synergy
Gnat Miser
50%inclusion12 decks24 decks
47%synergy
Typhoid Rats
50%inclusion12 decks24 decks
46%synergy
Rat Colony
50%inclusion12 decks24 decks
44%synergy
Chittering Skitterling
46%inclusion11 decks24 decks
45%synergy
Ashcoat of the Shadow Swarm
46%inclusion11 decks24 decks
42%synergy
Nezumi Informant
46%inclusion11 decks24 decks
39%synergy
Nashi, Moon Sage's Scion
42%inclusion10 decks24 decks
38%synergy
Rat King, Pale Piper
42%inclusion5 decks12 decks
37%synergy
Ayara, First of Locthwain
38%inclusion9 decks24 decks
12%synergy
Ink-Eyes, Servant of Oni
38%inclusion9 decks24 decks
34%synergy
Wave of Rats
38%inclusion9 decks24 decks
36%synergy
Gray Merchant of Asphodel
29%inclusion7 decks24 decks
-22%synergy
Throat Slitter
29%inclusion7 decks24 decks
27%synergy
Gnawing Vermin
25%inclusion6 decks24 decks
23%synergy
Locust Miser
25%inclusion6 decks24 decks
23%synergy
Chittering Witch
25%inclusion6 decks24 decks
21%synergy
Changeling Outcast
25%inclusion6 decks24 decks
20%synergy
Nezumi Prowler
25%inclusion6 decks24 decks
24%synergy
Pestilence Rats
25%inclusion6 decks24 decks
23%synergy
Undercity Dire Rat
24%inclusion5 decks21 decks
22%synergy
Ravenous Rats
21%inclusion5 decks24 decks
19%synergy
Swarm of Rats
21%inclusion5 decks24 decks
18%synergy
Crypt Ghast
21%inclusion5 decks24 decks
-27%synergy
Twisted Sewer-Witch
21%inclusion5 decks24 decks
19%synergy
Nezumi Cutthroat
21%inclusion5 decks24 decks
20%synergy
Bog Rats
17%inclusion4 decks24 decks
16%synergy
Species Specialist
17%inclusion4 decks24 decks
13%synergy
Yawgmoth, Thran Physician
17%inclusion4 decks24 decks
7%synergy
Okiba-Gang Shinobi
17%inclusion4 decks24 decks
16%synergy
Ruin Rat
17%inclusion4 decks24 decks
15%synergy
Rat King, Verminister
14%inclusion2 decks14 decks
11%synergy
Relentless Rats
13%inclusion3 decks24 decks
11%synergy
Adaptive Automaton
13%inclusion3 decks24 decks
11%synergy
Razortooth Rats
13%inclusion3 decks24 decks
12%synergy
Valley Rotcaller
13%inclusion3 decks24 decks
10%synergy
Patron of the Nezumi
8.3%inclusion2 decks24 decks
8%synergy
Chittering Rats
8.3%inclusion2 decks24 decks
8%synergy
Nezumi Graverobber
8.3%inclusion2 decks24 decks
7%synergy
Defiler of Flesh
8.3%inclusion2 decks24 decks
4%synergy
Ruthless Radrat
8.3%inclusion2 decks24 decks
8%synergy
Filth
8.3%inclusion2 decks24 decks
6%synergy
Skullsnatcher
8.3%inclusion2 decks24 decks
8%synergy
Sinuous Vermin
8.3%inclusion2 decks24 decks
8%synergy
Nezumi Bone-Reader
8.3%inclusion2 decks24 decks
7%synergy
Drainpipe Vermin
8.3%inclusion2 decks24 decks
7%synergy
Instants
Go for the Throat
46%inclusion11 decks24 decks
23%synergy
Village Rites
42%inclusion10 decks24 decks
16%synergy
Grim Affliction
33%inclusion8 decks24 decks
31%synergy
Rat Out
29%inclusion7 decks24 decks
28%synergy
Defile
29%inclusion7 decks24 decks
-7%synergy
Deadly Dispute
29%inclusion7 decks24 decks
3%synergy
Deadly Rollick
25%inclusion6 decks24 decks
1%synergy
Anoint with Affliction
25%inclusion6 decks24 decks
24%synergy
Infernal Grasp
25%inclusion6 decks24 decks
0%synergy
Tainted Strike
25%inclusion6 decks24 decks
22%synergy
Culling the Weak
21%inclusion5 decks24 decks
5%synergy
Malakir Rebirth
21%inclusion5 decks24 decks
-2%synergy
Corrupted Conviction
21%inclusion5 decks24 decks
8%synergy
Withering Torment
21%inclusion5 decks24 decks
-11%synergy
Hagra Mauling
17%inclusion4 decks24 decks
12%synergy
Sheoldred's Edict
17%inclusion4 decks24 decks
2%synergy
Extinguish the Light
17%inclusion4 decks24 decks
17%synergy
Tragic Slip
17%inclusion4 decks24 decks
-3%synergy
Unbury
13%inclusion2 decks15 decks
13%synergy
Snuff Out
13%inclusion3 decks24 decks
-1%synergy
Virulent Wound
13%inclusion3 decks24 decks
12%synergy
Sudden Spoiling
13%inclusion3 decks24 decks
4%synergy
Force of Despair
8.3%inclusion2 decks24 decks
1%synergy
Fell the Profane
8.3%inclusion2 decks24 decks
-11%synergy
Not Dead After All
8.3%inclusion2 decks24 decks
-3%synergy
Imp's Mischief
8.3%inclusion2 decks24 decks
-16%synergy
Supernatural Stamina
8.3%inclusion2 decks24 decks
1%synergy
Undying Malice
8.3%inclusion2 decks24 decks
-2%synergy
Murder
8.3%inclusion2 decks24 decks
-2%synergy
Feign Death
8.3%inclusion2 decks24 decks
0%synergy
Sorceries
Patriarch's Bidding
46%inclusion11 decks24 decks
42%synergy
Crippling Fear
46%inclusion11 decks24 decks
43%synergy
Revenge of the Rats
42%inclusion10 decks24 decks
39%synergy
Sign in Blood
38%inclusion9 decks24 decks
2%synergy
Feed the Swarm
33%inclusion8 decks24 decks
-17%synergy
Night's Whisper
33%inclusion8 decks24 decks
9%synergy
Bloodline Bidding
27%inclusion4 decks15 decks
22%synergy
Vat Emergence
25%inclusion6 decks24 decks
24%synergy
Feed the Infection
25%inclusion6 decks24 decks
24%synergy
Shredder's Technique
23%inclusion3 decks13 decks
20%synergy
Spread the Sickness
21%inclusion5 decks24 decks
20%synergy
Echoing Return
21%inclusion5 decks24 decks
18%synergy
Toxic Deluge
21%inclusion5 decks24 decks
-16%synergy
Kindred Dominance
21%inclusion5 decks24 decks
16%synergy
Diabolic Intent
17%inclusion4 decks24 decks
2%synergy
Bubbling Muck
17%inclusion4 decks24 decks
1%synergy
Read the Bones
17%inclusion4 decks24 decks
0%synergy
Reanimate
17%inclusion4 decks24 decks
-23%synergy
Damnation
17%inclusion4 decks24 decks
-4%synergy
Swarmyard Massacre
13%inclusion3 decks24 decks
10%synergy
Caress of Phyrexia
13%inclusion3 decks24 decks
12%synergy
Black Sun's Zenith
8.3%inclusion2 decks24 decks
3%synergy
Diabolic Tutor
8.3%inclusion2 decks24 decks
-6%synergy
Profane Tutor
8.3%inclusion2 decks24 decks
4%synergy
Psychic Whorl
8.3%inclusion2 decks24 decks
8%synergy
Unearth
8.3%inclusion2 decks24 decks
0%synergy
Mutilate
8.3%inclusion2 decks24 decks
-9%synergy
Decree of Pain
8.3%inclusion2 decks24 decks
3%synergy
Exsanguinate
8.3%inclusion2 decks24 decks
-16%synergy
Insatiable Avarice
8.3%inclusion2 decks24 decks
-3%synergy
Grim Tutor
8.3%inclusion2 decks24 decks
-3%synergy
Plague of Vermin
8.3%inclusion2 decks24 decks
6%synergy
Geth's Summons
8.3%inclusion2 decks24 decks
8%synergy
Utility Artifacts
Skullclamp
54%inclusion13 decks24 decks
32%synergy
Bontu's Monument
54%inclusion13 decks24 decks
26%synergy
Jet Medallion
54%inclusion13 decks24 decks
-8%synergy
Thrumming Stone
25%inclusion6 decks24 decks
21%synergy
Icon of Ancestry
21%inclusion5 decks24 decks
20%synergy
Contagion Clasp
21%inclusion5 decks24 decks
19%synergy
Vanquisher's Banner
21%inclusion5 decks24 decks
17%synergy
Wayfarer's Bauble
17%inclusion4 decks24 decks
1%synergy
Ashnod's Altar
17%inclusion4 decks24 decks
-3%synergy
Expedition Map
17%inclusion4 decks24 decks
5%synergy
Chronicle of Victory
13%inclusion2 decks15 decks
10%synergy
Blade of Selves
13%inclusion3 decks24 decks
11%synergy
Swiftfoot Boots
13%inclusion3 decks24 decks
-19%synergy
Lightning Greaves
13%inclusion3 decks24 decks
-21%synergy
Grafted Exoskeleton
13%inclusion3 decks24 decks
11%synergy
The Darkness Crystal
10%inclusion2 decks21 decks
-11%synergy
Vat of Rebirth
8.3%inclusion2 decks24 decks
5%synergy
Contagion Engine
8.3%inclusion2 decks24 decks
6%synergy
Whip of Erebos
8.3%inclusion2 decks24 decks
-3%synergy
Aetherflux Reservoir
8.3%inclusion2 decks24 decks
-1%synergy
Coat of Arms
8.3%inclusion2 decks24 decks
6%synergy
Banner of Kinship
8.3%inclusion2 decks24 decks
6%synergy
Sword of Hearth and Home
8.3%inclusion2 decks24 decks
7%synergy
Enchantments
Necrogen Communion
46%inclusion11 decks24 decks
44%synergy
Cover of Darkness
42%inclusion10 decks24 decks
39%synergy
Phyrexian Arena
38%inclusion9 decks24 decks
-2%synergy
Black Market Connections
25%inclusion6 decks24 decks
1%synergy
Phyresis
21%inclusion5 decks24 decks
19%synergy
Oversold Cemetery
17%inclusion4 decks24 decks
11%synergy
Grave Pact
13%inclusion3 decks24 decks
-7%synergy
Bad Moon
13%inclusion3 decks24 decks
9%synergy
Greed
8.3%inclusion2 decks24 decks
2%synergy
Phyrexian Reclamation
8.3%inclusion2 decks24 decks
-2%synergy
Glistening Oil
8.3%inclusion2 decks24 decks
8%synergy
Haunted One
8.3%inclusion2 decks24 decks
6%synergy
Tribute to Horobi
8.3%inclusion2 decks24 decks
7%synergy
Carnival of Souls
8.3%inclusion2 decks24 decks
7%synergy
Animate Dead
8.3%inclusion2 decks24 decks
-9%synergy
Oubliette
8.3%inclusion2 decks24 decks
5%synergy
Lord Skitter's Blessing
8.3%inclusion2 decks24 decks
8%synergy
Dark Prophecy
8.3%inclusion2 decks24 decks
4%synergy
Planeswalkers
Vraska, Betrayal's Sting
29%inclusion7 decks24 decks
27%synergy
Liliana of the Dark Realms
8.3%inclusion2 decks24 decks
-6%synergy
Utility Lands
Bojuka Bog
71%inclusion17 decks24 decks
24%synergy
Cabal Coffers
71%inclusion17 decks24 decks
16%synergy
Swarmyard
63%inclusion15 decks24 decks
57%synergy
Rogue's Passage
46%inclusion11 decks24 decks
27%synergy
Witch's Cottage
42%inclusion10 decks24 decks
17%synergy
Mudflat Village
42%inclusion10 decks24 decks
39%synergy
Cabal Stronghold
33%inclusion8 decks24 decks
-1%synergy
Mortuary Mire
29%inclusion7 decks24 decks
16%synergy
Nykthos, Shrine to Nyx
29%inclusion7 decks24 decks
-1%synergy
Reliquary Tower
25%inclusion6 decks24 decks
-5%synergy
Three Tree City
25%inclusion6 decks24 decks
20%synergy
Urborg, Tomb of Yawgmoth
25%inclusion6 decks24 decks
-13%synergy
War Room
21%inclusion5 decks24 decks
5%synergy
Barren Moor
17%inclusion4 decks24 decks
7%synergy
Crypt of Agadeem
17%inclusion4 decks24 decks
5%synergy
Inkmoth Nexus
13%inclusion3 decks24 decks
12%synergy
Takenuma, Abandoned Mire
13%inclusion3 decks24 decks
-3%synergy
Castle Locthwain
13%inclusion3 decks24 decks
-4%synergy
Access Tunnel
13%inclusion3 decks24 decks
10%synergy
Phyrexian Tower
8.3%inclusion2 decks24 decks
-17%synergy
Desert of the Glorified
8.3%inclusion2 decks24 decks
6%synergy
Spymaster's Vault
8.3%inclusion2 decks24 decks
-1%synergy
Minas Morgul, Dark Fortress
8.3%inclusion2 decks24 decks
5%synergy
The Dross Pits
8.3%inclusion2 decks24 decks
7%synergy
Polluted Mire
8.3%inclusion2 decks24 decks
5%synergy
Peat Bog
8.3%inclusion2 decks24 decks
6%synergy
Secret Tunnel
5.6%inclusion1 decks18 decks
4%synergy
Susur Secundi, Void Altar
5.3%inclusion1 decks19 decks
-2%synergy
Mana Artifacts
Sol Ring
88%inclusion21 decks24 decks
2%synergy
Arcane Signet
54%inclusion13 decks24 decks
-8%synergy
Glistening Sphere
50%inclusion12 decks24 decks
49%synergy
Patchwork Banner
21%inclusion5 decks24 decks
16%synergy
Staff of Compleation
17%inclusion4 decks24 decks
15%synergy
Charcoal Diamond
17%inclusion4 decks24 decks
-6%synergy
Heraldic Banner
13%inclusion3 decks24 decks
7%synergy
Phyrexian Atlas
13%inclusion3 decks24 decks
12%synergy
The Soul Stone
11%inclusion2 decks19 decks
-4%synergy
Thought Vessel
8.3%inclusion2 decks24 decks
-17%synergy
Worn Powerstone
8.3%inclusion2 decks24 decks
4%synergy
Mind Stone
8.3%inclusion2 decks24 decks
-20%synergy
Sceptre of Eternal Glory
8.3%inclusion2 decks24 decks
0%synergy
White Lotus Tile
5.6%inclusion1 decks18 decks
5%synergy
Lands
Swamp
100%inclusion24 decks24 decks
5%synergy
Path of Ancestry
42%inclusion10 decks24 decks
37%synergy
Big Apple, 3 a.m.
25%inclusion3 decks12 decks
23%synergy
Cavern of Souls
21%inclusion5 decks24 decks
14%synergy
Malakir Rebirth
21%inclusion5 decks24 decks
-2%synergy
Hagra Mauling
17%inclusion4 decks24 decks
12%synergy
Command Tower
17%inclusion4 decks24 decks
11%synergy
Evolving Wilds
17%inclusion4 decks24 decks
13%synergy
Terramorphic Expanse
13%inclusion3 decks24 decks
10%synergy
Mirrex
13%inclusion3 decks24 decks
12%synergy
Fell the Profane
8.3%inclusion2 decks24 decks
-11%synergy
Myriad Landscape
8.3%inclusion2 decks24 decks
-17%synergy
Ash Barrens
8.3%inclusion2 decks24 decks
7%synergy
Daily Bugle Building
5.6%inclusion1 decks18 decks
5%synergy
Vibrant Cityscape
5.6%inclusion1 decks18 decks
5%synergy
Command Bridge
5.0%inclusion1 decks20 decks
5%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