Karumonix, the Rat King (Commander) - Core Rats

Karumonix, the Rat King
Rank #412
42decks
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
Creatures
Instants
Sorceries
Utility Artifacts
Enchantments
Planeswalkers
Utility Lands
Mana Artifacts
Lands
Back to Top
Piper of the Swarm
93%inclusion39 decks42 decks
86%synergy
Ichor Rats
81%inclusion34 decks42 decks
78%synergy
Ogre Slumlord
86%inclusion36 decks42 decks
76%synergy
Blightbelly Rat
76%inclusion32 decks42 decks
73%synergy
Pack Rat
79%inclusion33 decks42 decks
73%synergy
Infectious Inquiry
67%inclusion28 decks42 decks
64%synergy
Marrow-Gnawer
67%inclusion28 decks42 decks
63%synergy
Typhoid Rats
67%inclusion28 decks42 decks
63%synergy
Drown in Ichor
67%inclusion28 decks42 decks
63%synergy
Septic Rats
64%inclusion27 decks42 decks
63%synergy
Top Cards
Lord Skitter, Sewer King
69%inclusion29 decks42 decks
61%synergy
Rancid Rats
62%inclusion26 decks42 decks
60%synergy
Vraska's Fall
60%inclusion25 decks42 decks
56%synergy
Lord Skitter's Butcher
57%inclusion24 decks42 decks
54%synergy
Tangled Colony
55%inclusion23 decks42 decks
52%synergy
Rat Colony
55%inclusion23 decks42 decks
49%synergy
Crypt Rats
55%inclusion23 decks42 decks
51%synergy
Herald's Horn
52%inclusion22 decks42 decks
47%synergy
Dark Ritual
52%inclusion22 decks42 decks
-15%synergy
Phyresis Outbreak
50%inclusion21 decks42 decks
48%synergy
Creatures
Voracious Vermin
48%inclusion20 decks42 decks
45%synergy
Persistent Marshstalker
45%inclusion19 decks42 decks
42%synergy
Gnat Miser
45%inclusion19 decks42 decks
43%synergy
Stronghold Rats
45%inclusion19 decks42 decks
42%synergy
Ashcoat of the Shadow Swarm
43%inclusion18 decks42 decks
39%synergy
Chittering Skitterling
38%inclusion16 decks42 decks
37%synergy
Wave of Rats
38%inclusion16 decks42 decks
37%synergy
Engine Rat
36%inclusion15 decks42 decks
34%synergy
Ratcatcher
36%inclusion15 decks42 decks
33%synergy
Burglar Rat
33%inclusion14 decks42 decks
23%synergy
Pestilence Rats
33%inclusion14 decks42 decks
32%synergy
Ruin Rat
33%inclusion14 decks42 decks
32%synergy
Rat King, Verminister
31%inclusion10 decks32 decks
28%synergy
Species Specialist
31%inclusion13 decks42 decks
28%synergy
Ink-Eyes, Servant of Oni
31%inclusion13 decks42 decks
28%synergy
Changeling Outcast
31%inclusion13 decks42 decks
26%synergy
Locust Miser
29%inclusion12 decks42 decks
27%synergy
Nezumi Cutthroat
29%inclusion12 decks42 decks
28%synergy
Old Flitterfang
29%inclusion12 decks42 decks
28%synergy
Rat King, Pale Piper
29%inclusion8 decks28 decks
25%synergy
Swarm of Rats
26%inclusion11 decks42 decks
24%synergy
Twisted Sewer-Witch
26%inclusion11 decks42 decks
25%synergy
Ayara, First of Locthwain
24%inclusion10 decks42 decks
-1%synergy
Chittering Witch
21%inclusion9 decks42 decks
17%synergy
Nezumi Prowler
21%inclusion9 decks42 decks
20%synergy
Ravenous Rats
19%inclusion8 decks42 decks
17%synergy
Gnawing Vermin
19%inclusion8 decks42 decks
18%synergy
Ruthless Radrat
19%inclusion8 decks42 decks
18%synergy
Razortooth Rats
19%inclusion8 decks42 decks
19%synergy
Valley Rotcaller
19%inclusion8 decks42 decks
16%synergy
Nashi, Moon Sage's Scion
19%inclusion8 decks42 decks
16%synergy
Undercity Dire Rat
18%inclusion7 decks39 decks
16%synergy
Relentless Rats
17%inclusion7 decks42 decks
15%synergy
Mukotai Ambusher
17%inclusion7 decks42 decks
16%synergy
Skullsnatcher
17%inclusion7 decks42 decks
16%synergy
Throat Slitter
17%inclusion7 decks42 decks
15%synergy
Crypt Ghast
17%inclusion7 decks42 decks
-30%synergy
Nezumi Informant
17%inclusion7 decks42 decks
11%synergy
Elephant-Rat
15%inclusion6 decks39 decks
15%synergy
Rotting Rats
14%inclusion6 decks42 decks
11%synergy
Nezumi Bladeblesser
12%inclusion5 decks42 decks
11%synergy
Drainpipe Vermin
12%inclusion5 decks42 decks
11%synergy
Refurbished Familiar
10%inclusion4 decks42 decks
8%synergy
Nezumi Graverobber
10%inclusion4 decks42 decks
8%synergy
Filth
10%inclusion4 decks42 decks
7%synergy
Insatiable Frugivore
10%inclusion4 decks42 decks
9%synergy
Adaptive Automaton
10%inclusion4 decks42 decks
9%synergy
Sinuous Vermin
10%inclusion4 decks42 decks
9%synergy
Chittering Rats
7.1%inclusion3 decks42 decks
7%synergy
Innocuous Rat
7.1%inclusion3 decks42 decks
6%synergy
Instants
Whisper of the Dross
45%inclusion19 decks42 decks
43%synergy
Defile
40%inclusion17 decks42 decks
5%synergy
Village Rites
36%inclusion15 decks42 decks
10%synergy
Grim Affliction
33%inclusion14 decks42 decks
32%synergy
Anoint with Affliction
26%inclusion11 decks42 decks
26%synergy
Rat Out
24%inclusion10 decks42 decks
22%synergy
Go for the Throat
21%inclusion9 decks42 decks
-1%synergy
Deadly Dispute
19%inclusion8 decks42 decks
-8%synergy
Not Dead After All
17%inclusion7 decks42 decks
5%synergy
Infernal Grasp
17%inclusion7 decks42 decks
-9%synergy
Tainted Strike
17%inclusion7 decks42 decks
14%synergy
Corrupted Conviction
17%inclusion7 decks42 decks
4%synergy
Virulent Wound
14%inclusion6 decks42 decks
14%synergy
Undying Malice
12%inclusion5 decks42 decks
2%synergy
Malakir Rebirth
12%inclusion5 decks42 decks
-12%synergy
Withering Torment
12%inclusion5 decks42 decks
-20%synergy
Fell the Profane
10%inclusion4 decks42 decks
-10%synergy
Culling the Weak
10%inclusion4 decks42 decks
-9%synergy
Raise the Draugr
10%inclusion4 decks42 decks
9%synergy
Foul-Tongue Shriek
10%inclusion4 decks42 decks
8%synergy
Offer Immortality
10%inclusion4 decks42 decks
8%synergy
Sudden Spoiling
10%inclusion4 decks42 decks
1%synergy
Tragic Slip
10%inclusion4 decks42 decks
-9%synergy
Unbury
9.1%inclusion3 decks33 decks
8%synergy
Deadly Rollick
7.1%inclusion3 decks42 decks
-19%synergy
Snuff Out
7.1%inclusion3 decks42 decks
-7%synergy
Battle-Rage Blessing
7.1%inclusion3 decks42 decks
6%synergy
Cabal Ritual
7.1%inclusion3 decks42 decks
-12%synergy
Supernatural Stamina
7.1%inclusion3 decks42 decks
-1%synergy
Costly Plunder
7.1%inclusion3 decks42 decks
5%synergy
Murder
7.1%inclusion3 decks42 decks
-2%synergy
Baleful Mastery
7.1%inclusion3 decks42 decks
-1%synergy
Black Sun's Twilight
7.1%inclusion3 decks42 decks
4%synergy
Gravepurge
7.1%inclusion3 decks42 decks
6%synergy
Feign Death
7.1%inclusion3 decks42 decks
-1%synergy
Vincent's Limit Break
5.1%inclusion2 decks39 decks
3%synergy
Alesha's Legacy
5.0%inclusion2 decks40 decks
4%synergy
Sorceries
Feed the Swarm
50%inclusion21 decks42 decks
-0%synergy
Crippling Fear
38%inclusion16 decks42 decks
35%synergy
Vat Emergence
33%inclusion14 decks42 decks
32%synergy
Revenge of the Rats
31%inclusion13 decks42 decks
28%synergy
Night's Whisper
29%inclusion12 decks42 decks
3%synergy
Sign in Blood
29%inclusion12 decks42 decks
-6%synergy
Kindred Dominance
29%inclusion12 decks42 decks
24%synergy
Patriarch's Bidding
26%inclusion11 decks42 decks
22%synergy
Swarmyard Massacre
24%inclusion10 decks42 decks
21%synergy
Read the Bones
24%inclusion10 decks42 decks
8%synergy
Unearth
21%inclusion9 decks42 decks
12%synergy
Spread the Sickness
19%inclusion8 decks42 decks
18%synergy
Feed the Infection
19%inclusion8 decks42 decks
18%synergy
Victimize
14%inclusion6 decks42 decks
-14%synergy
Echoing Return
14%inclusion6 decks42 decks
11%synergy
Living Death
14%inclusion6 decks42 decks
4%synergy
Diabolic Tutor
12%inclusion5 decks42 decks
-2%synergy
Bubbling Muck
12%inclusion5 decks42 decks
-4%synergy
Exsanguinate
12%inclusion5 decks42 decks
-13%synergy
Caress of Phyrexia
12%inclusion5 decks42 decks
11%synergy
Toxic Deluge
12%inclusion5 decks42 decks
-25%synergy
Mutilate
10%inclusion4 decks42 decks
-6%synergy
Corrupt
10%inclusion4 decks42 decks
7%synergy
Plague of Vermin
10%inclusion4 decks42 decks
7%synergy
Bloodline Bidding
9.1%inclusion3 decks33 decks
5%synergy
Reanimate
7.1%inclusion3 decks42 decks
-34%synergy
In Garruk's Wake
7.1%inclusion3 decks42 decks
4%synergy
Geth's Summons
7.1%inclusion3 decks42 decks
7%synergy
Secret Salvage
7.1%inclusion3 decks42 decks
6%synergy
Pox Plague
5.0%inclusion1 decks20 decks
0%synergy
Utility Artifacts
Jet Medallion
50%inclusion21 decks42 decks
-12%synergy
Bontu's Monument
48%inclusion20 decks42 decks
20%synergy
Contagion Clasp
33%inclusion14 decks42 decks
31%synergy
Skullclamp
29%inclusion12 decks42 decks
6%synergy
Vanquisher's Banner
29%inclusion12 decks42 decks
25%synergy
Swiftfoot Boots
29%inclusion12 decks42 decks
-3%synergy
Thrumming Stone
21%inclusion9 decks42 decks
17%synergy
Contagion Engine
19%inclusion8 decks42 decks
17%synergy
Door of Destinies
19%inclusion8 decks42 decks
17%synergy
Whip of Erebos
17%inclusion7 decks42 decks
6%synergy
Prosthetic Injector
17%inclusion7 decks42 decks
16%synergy
Lightning Greaves
14%inclusion6 decks42 decks
-20%synergy
Whispersilk Cloak
12%inclusion5 decks42 decks
6%synergy
Vat of Rebirth
10%inclusion4 decks42 decks
6%synergy
Ashnod's Altar
10%inclusion4 decks42 decks
-10%synergy
Coat of Arms
10%inclusion4 decks42 decks
7%synergy
Urza's Incubator
10%inclusion4 decks42 decks
7%synergy
Grafted Exoskeleton
10%inclusion4 decks42 decks
8%synergy
Chronicle of Victory
9.1%inclusion3 decks33 decks
7%synergy
The Darkness Crystal
7.7%inclusion3 decks39 decks
-12%synergy
Trailblazer's Boots
7.1%inclusion3 decks42 decks
5%synergy
Hall of Triumph
7.1%inclusion3 decks42 decks
7%synergy
Banner of Kinship
7.1%inclusion3 decks42 decks
5%synergy
Akroma's Memorial
7.1%inclusion3 decks42 decks
6%synergy
Stolen Stark Tech
7.1%inclusion1 decks14 decks
6%synergy
Gathering Stone
6.1%inclusion2 decks33 decks
5%synergy
Enchantments
Necrogen Communion
43%inclusion18 decks42 decks
41%synergy
Cover of Darkness
38%inclusion16 decks42 decks
35%synergy
Phyrexian Arena
31%inclusion13 decks42 decks
-8%synergy
Phyresis
24%inclusion10 decks42 decks
22%synergy
Oversold Cemetery
19%inclusion8 decks42 decks
14%synergy
Vampiric Rites
17%inclusion7 decks42 decks
11%synergy
Grave Pact
17%inclusion7 decks42 decks
-3%synergy
Phyrexian Reclamation
14%inclusion6 decks42 decks
5%synergy
Black Market Connections
14%inclusion6 decks42 decks
-11%synergy
Black Market
12%inclusion5 decks42 decks
-8%synergy
Haunted One
12%inclusion5 decks42 decks
10%synergy
Lord Skitter's Blessing
12%inclusion5 decks42 decks
11%synergy
Relic Putrescence
10%inclusion4 decks42 decks
9%synergy
Bad Moon
10%inclusion4 decks42 decks
6%synergy
Underworld Connections
7.1%inclusion3 decks42 decks
5%synergy
Dictate of Erebos
7.1%inclusion3 decks42 decks
-4%synergy
Intimidation
7.1%inclusion3 decks42 decks
7%synergy
Snake Cult Initiation
7.1%inclusion3 decks42 decks
7%synergy
Demonic Embrace
7.1%inclusion3 decks42 decks
6%synergy
Planeswalkers
Vraska, Betrayal's Sting
31%inclusion13 decks42 decks
28%synergy
Liliana of the Dark Realms
17%inclusion7 decks42 decks
3%synergy
Utility Lands
Swarmyard
67%inclusion28 decks42 decks
61%synergy
Rogue's Passage
50%inclusion21 decks42 decks
30%synergy
Karn's Bastion
48%inclusion20 decks42 decks
44%synergy
Mudflat Village
48%inclusion20 decks42 decks
45%synergy
Bojuka Bog
40%inclusion17 decks42 decks
-7%synergy
Cabal Stronghold
36%inclusion15 decks42 decks
2%synergy
Cabal Coffers
36%inclusion15 decks42 decks
-19%synergy
Urborg, Tomb of Yawgmoth
29%inclusion12 decks42 decks
-9%synergy
Access Tunnel
29%inclusion12 decks42 decks
26%synergy
Mortuary Mire
26%inclusion11 decks42 decks
13%synergy
Witch's Cottage
26%inclusion11 decks42 decks
2%synergy
Reliquary Tower
26%inclusion11 decks42 decks
-3%synergy
Three Tree City
26%inclusion11 decks42 decks
21%synergy
Nykthos, Shrine to Nyx
17%inclusion7 decks42 decks
-13%synergy
Secret Tunnel
17%inclusion6 decks36 decks
16%synergy
Shizo, Death's Storehouse
12%inclusion5 decks42 decks
1%synergy
Phyrexian Tower
12%inclusion5 decks42 decks
-15%synergy
Barren Moor
12%inclusion5 decks42 decks
3%synergy
War Room
12%inclusion5 decks42 decks
-4%synergy
Minas Morgul, Dark Fortress
12%inclusion5 decks42 decks
9%synergy
Crypt of Agadeem
10%inclusion4 decks42 decks
-2%synergy
Inkmoth Nexus
10%inclusion4 decks42 decks
9%synergy
The Dross Pits
10%inclusion4 decks42 decks
8%synergy
Castle Locthwain
10%inclusion4 decks42 decks
-7%synergy
Susur Secundi, Void Altar
5.1%inclusion2 decks39 decks
-2%synergy
Mana Artifacts
Sol Ring
62%inclusion26 decks42 decks
-23%synergy
Arcane Signet
40%inclusion17 decks42 decks
-21%synergy
Glistening Sphere
40%inclusion17 decks42 decks
39%synergy
Staff of Compleation
21%inclusion9 decks42 decks
20%synergy
Patchwork Banner
21%inclusion9 decks42 decks
17%synergy
Charcoal Diamond
14%inclusion6 decks42 decks
-7%synergy
Heraldic Banner
14%inclusion6 decks42 decks
9%synergy
Thought Vessel
12%inclusion5 decks42 decks
-12%synergy
Mind Stone
12%inclusion5 decks42 decks
-16%synergy
Throne of Eldraine
10%inclusion4 decks42 decks
1%synergy
Phyrexian Atlas
10%inclusion4 decks42 decks
9%synergy
Caged Sun
7.1%inclusion3 decks42 decks
-3%synergy
Gauntlet of Power
7.1%inclusion3 decks42 decks
4%synergy
The Soul Stone
5.1%inclusion2 decks39 decks
-11%synergy
Lands
Swamp
100%inclusion42 decks42 decks
5%synergy
Path of Ancestry
43%inclusion18 decks42 decks
38%synergy
Myriad Landscape
21%inclusion9 decks42 decks
-3%synergy
Cavern of Souls
14%inclusion6 decks42 decks
7%synergy
Big Apple, 3 a.m.
14%inclusion4 decks28 decks
13%synergy
Escape Tunnel
12%inclusion5 decks42 decks
11%synergy
Malakir Rebirth
12%inclusion5 decks42 decks
-12%synergy
Fell the Profane
10%inclusion4 decks42 decks
-10%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