Karumonix, the Rat King (Commander) - Core Infect

Karumonix, the Rat King
Rank #400
112decks
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
90%inclusion101 decks112 decks
83%synergy
Blightbelly Rat
85%inclusion95 decks112 decks
81%synergy
Infectious Inquiry
79%inclusion88 decks112 decks
76%synergy
Ogre Slumlord
84%inclusion94 decks112 decks
74%synergy
Pack Rat
77%inclusion86 decks112 decks
71%synergy
Typhoid Rats
73%inclusion82 decks112 decks
70%synergy
Ichor Rats
72%inclusion81 decks112 decks
69%synergy
Marrow-Gnawer
71%inclusion79 decks112 decks
67%synergy
Vraska's Fall
70%inclusion78 decks112 decks
66%synergy
Rancid Rats
68%inclusion76 decks112 decks
65%synergy
Top Cards
Lord Skitter, Sewer King
71%inclusion80 decks112 decks
63%synergy
Drown in Ichor
67%inclusion75 decks112 decks
63%synergy
Lord Skitter's Butcher
63%inclusion71 decks112 decks
60%synergy
Septic Rats
61%inclusion68 decks112 decks
59%synergy
Crypt Rats
58%inclusion65 decks112 decks
54%synergy
Whisper of the Dross
58%inclusion65 decks112 decks
55%synergy
Tangled Colony
58%inclusion65 decks112 decks
55%synergy
Voracious Vermin
54%inclusion61 decks112 decks
52%synergy
Dark Ritual
53%inclusion59 decks112 decks
-14%synergy
Phyresis Outbreak
52%inclusion58 decks112 decks
50%synergy
Creatures
Stronghold Rats
51%inclusion57 decks112 decks
47%synergy
Burglar Rat
48%inclusion54 decks112 decks
38%synergy
Persistent Marshstalker
46%inclusion52 decks112 decks
43%synergy
Chittering Skitterling
46%inclusion52 decks112 decks
46%synergy
Wave of Rats
46%inclusion51 decks112 decks
44%synergy
Rat Colony
46%inclusion51 decks112 decks
40%synergy
Gnat Miser
45%inclusion50 decks112 decks
42%synergy
Changeling Outcast
44%inclusion49 decks112 decks
39%synergy
Ratcatcher
44%inclusion49 decks112 decks
40%synergy
Ruin Rat
38%inclusion43 decks112 decks
37%synergy
Nezumi Cutthroat
36%inclusion40 decks112 decks
35%synergy
Ashcoat of the Shadow Swarm
34%inclusion38 decks112 decks
30%synergy
Chittering Witch
33%inclusion37 decks112 decks
29%synergy
Nezumi Informant
33%inclusion37 decks112 decks
27%synergy
Ink-Eyes, Servant of Oni
32%inclusion36 decks112 decks
29%synergy
Pestilence Rats
32%inclusion36 decks112 decks
30%synergy
Old Flitterfang
32%inclusion36 decks112 decks
31%synergy
Twisted Sewer-Witch
31%inclusion35 decks112 decks
30%synergy
Engine Rat
31%inclusion30 decks97 decks
29%synergy
Nashi, Moon Sage's Scion
30%inclusion34 decks112 decks
27%synergy
Nezumi Prowler
29%inclusion33 decks112 decks
28%synergy
Ravenous Rats
29%inclusion32 decks112 decks
27%synergy
Gnawing Vermin
29%inclusion32 decks112 decks
27%synergy
Rat King, Pale Piper
28%inclusion11 decks39 decks
24%synergy
Swarm of Rats
28%inclusion31 decks112 decks
25%synergy
Drainpipe Vermin
28%inclusion31 decks112 decks
26%synergy
Species Specialist
23%inclusion26 decks112 decks
20%synergy
Valley Rotcaller
23%inclusion26 decks112 decks
20%synergy
Rotting Rats
21%inclusion24 decks112 decks
18%synergy
Ruthless Radrat
21%inclusion24 decks112 decks
21%synergy
Mukotai Ambusher
21%inclusion24 decks112 decks
21%synergy
Skullsnatcher
21%inclusion24 decks112 decks
21%synergy
Razortooth Rats
21%inclusion24 decks112 decks
21%synergy
Locust Miser
21%inclusion23 decks112 decks
19%synergy
Rat King, Verminister
20%inclusion10 decks49 decks
17%synergy
Undercity Dire Rat
20%inclusion16 decks81 decks
18%synergy
Ayara, First of Locthwain
20%inclusion22 decks112 decks
-6%synergy
Throat Slitter
20%inclusion22 decks112 decks
18%synergy
Crypt Ghast
19%inclusion21 decks112 decks
-29%synergy
Nezumi Graverobber
18%inclusion20 decks112 decks
17%synergy
Okiba-Gang Shinobi
16%inclusion18 decks112 decks
15%synergy
Innocuous Rat
15%inclusion16 decks106 decks
14%synergy
Relentless Rats
14%inclusion16 decks112 decks
13%synergy
Nezumi Bladeblesser
14%inclusion16 decks112 decks
14%synergy
Sinuous Vermin
14%inclusion16 decks112 decks
14%synergy
Refurbished Familiar
13%inclusion15 decks112 decks
11%synergy
Chittering Rats
13%inclusion15 decks112 decks
13%synergy
Gray Merchant of Asphodel
13%inclusion15 decks112 decks
-37%synergy
Bog Rats
11%inclusion12 decks112 decks
10%synergy
Scrib Nibblers
11%inclusion12 decks112 decks
10%synergy
Instants
Village Rites
45%inclusion50 decks112 decks
19%synergy
Defile
41%inclusion46 decks112 decks
5%synergy
Grim Affliction
34%inclusion38 decks112 decks
32%synergy
Anoint with Affliction
31%inclusion35 decks112 decks
31%synergy
Rat Out
28%inclusion31 decks112 decks
26%synergy
Corrupted Conviction
28%inclusion31 decks112 decks
15%synergy
Go for the Throat
23%inclusion26 decks112 decks
1%synergy
Tainted Strike
23%inclusion26 decks112 decks
20%synergy
Virulent Wound
22%inclusion25 decks112 decks
22%synergy
Deadly Dispute
21%inclusion24 decks112 decks
-5%synergy
Consuming Corruption
16%inclusion18 decks112 decks
0%synergy
Tragic Slip
16%inclusion18 decks112 decks
-3%synergy
Raise the Draugr
14%inclusion16 decks112 decks
13%synergy
Murder
14%inclusion16 decks112 decks
4%synergy
Fell the Profane
13%inclusion15 decks112 decks
-6%synergy
Infernal Grasp
13%inclusion15 decks112 decks
-12%synergy
Withering Torment
13%inclusion14 decks106 decks
-18%synergy
Foul-Tongue Shriek
12%inclusion13 decks112 decks
10%synergy
Gravepurge
12%inclusion13 decks112 decks
10%synergy
Hero's Downfall
10%inclusion11 decks112 decks
3%synergy
Deadly Rollick
10%inclusion11 decks112 decks
-15%synergy
Not Dead After All
10%inclusion11 decks112 decks
-1%synergy
Bitter Triumph
8.9%inclusion10 decks112 decks
-1%synergy
Malakir Rebirth
8.9%inclusion10 decks112 decks
-14%synergy
Baleful Mastery
8.9%inclusion10 decks112 decks
1%synergy
Undying Malice
8.0%inclusion9 decks112 decks
-2%synergy
Feign Death
8.0%inclusion9 decks112 decks
-0%synergy
Offer Immortality
7.1%inclusion8 decks112 decks
5%synergy
Sheoldred's Edict
6.3%inclusion7 decks112 decks
-9%synergy
Cabal Ritual
6.3%inclusion7 decks112 decks
-12%synergy
Altar's Reap
6.3%inclusion7 decks112 decks
4%synergy
Sudden Spoiling
6.3%inclusion7 decks112 decks
-2%synergy
Dismember
6.3%inclusion7 decks112 decks
-4%synergy
Unbury
6.0%inclusion3 decks50 decks
5%synergy
Imp's Mischief
5.4%inclusion6 decks112 decks
-20%synergy
Doom Blade
5.4%inclusion6 decks112 decks
-2%synergy
Death Denied
5.4%inclusion6 decks112 decks
5%synergy
Sorceries
Feed the Swarm
42%inclusion47 decks112 decks
-8%synergy
Crippling Fear
42%inclusion47 decks112 decks
39%synergy
Vat Emergence
38%inclusion43 decks112 decks
37%synergy
Revenge of the Rats
36%inclusion37 decks103 decks
33%synergy
Sign in Blood
31%inclusion35 decks112 decks
-4%synergy
Read the Bones
25%inclusion28 decks112 decks
9%synergy
Unearth
24%inclusion27 decks112 decks
15%synergy
Patriarch's Bidding
23%inclusion26 decks112 decks
19%synergy
Night's Whisper
23%inclusion26 decks112 decks
-2%synergy
Kindred Dominance
23%inclusion26 decks112 decks
19%synergy
Spread the Sickness
22%inclusion25 decks112 decks
22%synergy
Feed the Infection
19%inclusion21 decks112 decks
18%synergy
Swarmyard Massacre
19%inclusion21 decks112 decks
16%synergy
Diabolic Tutor
15%inclusion17 decks112 decks
1%synergy
Caress of Phyrexia
15%inclusion17 decks112 decks
15%synergy
Victimize
14%inclusion16 decks112 decks
-13%synergy
Bloodline Bidding
14%inclusion7 decks50 decks
10%synergy
Geth's Summons
13%inclusion15 decks112 decks
13%synergy
Plague of Vermin
12%inclusion13 decks112 decks
9%synergy
Reanimate
11%inclusion12 decks112 decks
-30%synergy
Echoing Return
10%inclusion11 decks112 decks
7%synergy
Mutilate
10%inclusion11 decks112 decks
-6%synergy
Toxic Deluge
10%inclusion11 decks112 decks
-27%synergy
Exsanguinate
8.9%inclusion10 decks112 decks
-16%synergy
Lab Rats
8.9%inclusion10 decks112 decks
8%synergy
Return from Extinction
8.0%inclusion9 decks112 decks
8%synergy
Syphon Mind
8.0%inclusion9 decks112 decks
-4%synergy
Pact of the Serpent
8.0%inclusion9 decks112 decks
6%synergy
Forever Young
6.3%inclusion7 decks112 decks
5%synergy
Haunting Voyage
6.3%inclusion7 decks112 decks
5%synergy
Corrupt
6.3%inclusion7 decks112 decks
4%synergy
Diabolic Intent
5.4%inclusion6 decks112 decks
-10%synergy
Bubbling Muck
5.4%inclusion6 decks112 decks
-10%synergy
Gruesome Fate
5.4%inclusion6 decks112 decks
3%synergy
Decorum Dissertation
5.0%inclusion1 decks20 decks
-1%synergy
Utility Artifacts
Jet Medallion
51%inclusion57 decks112 decks
-11%synergy
Bontu's Monument
49%inclusion55 decks112 decks
21%synergy
Herald's Horn
42%inclusion47 decks112 decks
36%synergy
Contagion Clasp
35%inclusion39 decks112 decks
33%synergy
Vanquisher's Banner
29%inclusion32 decks112 decks
25%synergy
Skullclamp
28%inclusion31 decks112 decks
5%synergy
Contagion Engine
21%inclusion23 decks112 decks
19%synergy
Prosthetic Injector
19%inclusion21 decks112 decks
18%synergy
Thrumming Stone
15%inclusion17 decks112 decks
11%synergy
Swiftfoot Boots
15%inclusion17 decks112 decks
-16%synergy
Whip of Erebos
14%inclusion16 decks112 decks
3%synergy
Door of Destinies
14%inclusion16 decks112 decks
12%synergy
Lightning Greaves
13%inclusion15 decks112 decks
-20%synergy
Grafted Exoskeleton
13%inclusion14 decks112 decks
11%synergy
Chronicle of Victory
12%inclusion6 decks51 decks
9%synergy
Whispersilk Cloak
12%inclusion13 decks112 decks
6%synergy
Icon of Ancestry
10%inclusion11 decks112 decks
9%synergy
Coat of Arms
10%inclusion11 decks112 decks
7%synergy
Vat of Rebirth
8.9%inclusion10 decks112 decks
6%synergy
Wayfarer's Bauble
5.4%inclusion6 decks112 decks
-9%synergy
Ashnod's Altar
5.4%inclusion6 decks112 decks
-14%synergy
Enchantments
Necrogen Communion
49%inclusion55 decks112 decks
47%synergy
Phyrexian Arena
35%inclusion39 decks112 decks
-5%synergy
Cover of Darkness
31%inclusion35 decks112 decks
28%synergy
Phyresis
29%inclusion33 decks112 decks
27%synergy
Oversold Cemetery
22%inclusion25 decks112 decks
17%synergy
Bad Moon
18%inclusion20 decks112 decks
15%synergy
Haunted One
17%inclusion19 decks112 decks
14%synergy
Tribute to Horobi
13%inclusion15 decks112 decks
12%synergy
Grave Pact
13%inclusion14 decks112 decks
-7%synergy
Black Market Connections
12%inclusion13 decks112 decks
-13%synergy
Black Market
11%inclusion12 decks112 decks
-10%synergy
Phyrexian Reclamation
11%inclusion12 decks112 decks
1%synergy
Lord Skitter's Blessing
11%inclusion12 decks112 decks
10%synergy
Vampiric Rites
10%inclusion11 decks112 decks
4%synergy
Glistening Oil
7.1%inclusion8 decks112 decks
6%synergy
Dictate of Erebos
7.1%inclusion8 decks112 decks
-4%synergy
Snake Cult Initiation
7.1%inclusion8 decks112 decks
7%synergy
Relic Putrescence
6.3%inclusion7 decks112 decks
6%synergy
Intimidation
6.3%inclusion7 decks112 decks
6%synergy
Planeswalkers
Vraska, Betrayal's Sting
30%inclusion34 decks112 decks
28%synergy
Liliana of the Dark Realms
8.9%inclusion10 decks112 decks
-5%synergy
Utility Lands
Swarmyard
63%inclusion70 decks112 decks
57%synergy
Karn's Bastion
57%inclusion64 decks112 decks
53%synergy
Rogue's Passage
46%inclusion52 decks112 decks
27%synergy
Bojuka Bog
45%inclusion50 decks112 decks
-2%synergy
Mudflat Village
43%inclusion48 decks112 decks
40%synergy
Witch's Cottage
30%inclusion34 decks112 decks
6%synergy
Cabal Coffers
30%inclusion34 decks112 decks
-24%synergy
Cabal Stronghold
29%inclusion32 decks112 decks
-6%synergy
Mortuary Mire
28%inclusion31 decks112 decks
15%synergy
Access Tunnel
24%inclusion27 decks112 decks
21%synergy
Three Tree City
21%inclusion23 decks112 decks
16%synergy
Nykthos, Shrine to Nyx
20%inclusion22 decks112 decks
-10%synergy
Urborg, Tomb of Yawgmoth
18%inclusion20 decks112 decks
-20%synergy
Secret Tunnel
17%inclusion10 decks60 decks
15%synergy
Reliquary Tower
16%inclusion18 decks112 decks
-14%synergy
Barren Moor
15%inclusion17 decks112 decks
6%synergy
Phyrexian Tower
14%inclusion16 decks112 decks
-12%synergy
Crypt of Agadeem
13%inclusion14 decks112 decks
1%synergy
Castle Locthwain
12%inclusion13 decks112 decks
-5%synergy
Shizo, Death's Storehouse
8.9%inclusion10 decks112 decks
-1%synergy
Inkmoth Nexus
8.9%inclusion10 decks112 decks
8%synergy
War Room
8.0%inclusion9 decks112 decks
-8%synergy
The Dross Pits
8.0%inclusion9 decks112 decks
7%synergy
Minas Morgul, Dark Fortress
7.1%inclusion8 decks112 decks
4%synergy
Takenuma, Abandoned Mire
7.1%inclusion8 decks112 decks
-9%synergy
Temple of the False God
6.3%inclusion7 decks112 decks
-1%synergy
Vesuva
5.4%inclusion6 decks112 decks
3%synergy
Polluted Mire
5.4%inclusion6 decks112 decks
2%synergy
Mana Artifacts
Sol Ring
69%inclusion77 decks112 decks
-17%synergy
Arcane Signet
47%inclusion53 decks112 decks
-14%synergy
Glistening Sphere
44%inclusion49 decks112 decks
43%synergy
Staff of Compleation
24%inclusion27 decks112 decks
22%synergy
Patchwork Banner
23%inclusion26 decks112 decks
19%synergy
Charcoal Diamond
20%inclusion22 decks112 decks
-2%synergy
Mind Stone
18%inclusion20 decks112 decks
-10%synergy
Heraldic Banner
13%inclusion15 decks112 decks
8%synergy
Phyrexian Atlas
13%inclusion15 decks112 decks
13%synergy
Caged Sun
13%inclusion14 decks112 decks
2%synergy
Commander's Sphere
8.9%inclusion10 decks112 decks
1%synergy
Gauntlet of Power
6.3%inclusion7 decks112 decks
3%synergy
Thought Vessel
5.4%inclusion6 decks112 decks
-20%synergy
Lands
Swamp
98%inclusion110 decks112 decks
3%synergy
Path of Ancestry
42%inclusion47 decks112 decks
37%synergy
Myriad Landscape
21%inclusion24 decks112 decks
-3%synergy
Fell the Profane
13%inclusion15 decks112 decks
-6%synergy
Cavern of Souls
12%inclusion13 decks112 decks
5%synergy
Escape Tunnel
11%inclusion12 decks112 decks
10%synergy
Malakir Rebirth
8.9%inclusion10 decks112 decks
-14%synergy
Command Tower
8.0%inclusion9 decks112 decks
2%synergy
Big Apple, 3 a.m.
7.7%inclusion3 decks39 decks
6%synergy
Terramorphic Expanse
5.4%inclusion6 decks112 decks
3%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