Karumonix, the Rat King (Commander) - Upgraded Infect

Karumonix, the Rat King
Rank #384
77decks
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
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, Pale Piper
37%inclusion10 decks27 decks
33%synergy
Rat King, Verminister
16%inclusion5 decks31 decks
13%synergy
Big Apple, 3 a.m.
11%inclusion3 decks27 decks
9%synergy
Shredder's Technique
11%inclusion3 decks28 decks
7%synergy
Tunnel Rats
3.8%inclusion1 decks26 decks
3%synergy
High Synergy Cards
Blightbelly Rat
88%inclusion68 decks77 decks
85%synergy
Ichor Rats
83%inclusion64 decks77 decks
80%synergy
Marrow-Gnawer
83%inclusion64 decks77 decks
80%synergy
Infectious Inquiry
81%inclusion62 decks77 decks
78%synergy
Piper of the Swarm
84%inclusion65 decks77 decks
77%synergy
Drown in Ichor
77%inclusion59 decks77 decks
73%synergy
Lord Skitter, Sewer King
79%inclusion61 decks77 decks
71%synergy
Pack Rat
77%inclusion59 decks77 decks
71%synergy
Ogre Slumlord
81%inclusion62 decks77 decks
70%synergy
Vraska's Fall
70%inclusion54 decks77 decks
67%synergy
Top Cards
Dark Ritual
75%inclusion58 decks77 decks
9%synergy
Septic Rats
66%inclusion51 decks77 decks
64%synergy
Bontu's Monument
64%inclusion49 decks77 decks
35%synergy
Rancid Rats
62%inclusion48 decks77 decks
60%synergy
Jet Medallion
60%inclusion46 decks77 decks
-2%synergy
Whisper of the Dross
58%inclusion45 decks77 decks
56%synergy
Lord Skitter's Butcher
57%inclusion44 decks77 decks
54%synergy
Phyresis Outbreak
57%inclusion44 decks77 decks
55%synergy
Stronghold Rats
56%inclusion43 decks77 decks
52%synergy
Tangled Colony
55%inclusion42 decks77 decks
51%synergy
Game Changers
Demonic Tutor
31%inclusion24 decks77 decks
4%synergy
Vampiric Tutor
19%inclusion15 decks77 decks
-1%synergy
Bolas's Citadel
18%inclusion14 decks77 decks
-10%synergy
Necropotence
6.5%inclusion5 decks77 decks
-8%synergy
Creatures
Persistent Marshstalker
55%inclusion42 decks77 decks
52%synergy
Typhoid Rats
55%inclusion42 decks77 decks
51%synergy
Crypt Rats
53%inclusion41 decks77 decks
49%synergy
Gnat Miser
48%inclusion37 decks77 decks
45%synergy
Voracious Vermin
45%inclusion35 decks77 decks
42%synergy
Ratcatcher
45%inclusion35 decks77 decks
42%synergy
Rat Colony
45%inclusion35 decks77 decks
40%synergy
Burglar Rat
44%inclusion34 decks77 decks
33%synergy
Ashcoat of the Shadow Swarm
42%inclusion32 decks77 decks
38%synergy
Wave of Rats
39%inclusion30 decks77 decks
37%synergy
Changeling Outcast
35%inclusion27 decks77 decks
30%synergy
Ruin Rat
31%inclusion24 decks77 decks
30%synergy
Throat Slitter
30%inclusion23 decks77 decks
28%synergy
Ink-Eyes, Servant of Oni
30%inclusion23 decks77 decks
27%synergy
Chittering Skitterling
30%inclusion23 decks77 decks
29%synergy
Swarm of Rats
29%inclusion22 decks77 decks
26%synergy
Nezumi Informant
29%inclusion22 decks77 decks
22%synergy
Chittering Witch
27%inclusion21 decks77 decks
23%synergy
Pestilence Rats
27%inclusion21 decks77 decks
25%synergy
Nezumi Prowler
26%inclusion20 decks77 decks
25%synergy
Nashi, Moon Sage's Scion
26%inclusion20 decks77 decks
22%synergy
Undercity Dire Rat
25%inclusion16 decks63 decks
24%synergy
Species Specialist
23%inclusion18 decks77 decks
20%synergy
Valley Rotcaller
23%inclusion18 decks77 decks
21%synergy
Crypt Ghast
23%inclusion18 decks77 decks
-24%synergy
Ayara, First of Locthwain
22%inclusion17 decks77 decks
-4%synergy
Nezumi Cutthroat
22%inclusion17 decks77 decks
21%synergy
Gnawing Vermin
21%inclusion16 decks77 decks
19%synergy
Locust Miser
21%inclusion16 decks77 decks
19%synergy
Engine Rat
21%inclusion16 decks77 decks
19%synergy
Rotting Rats
18%inclusion14 decks77 decks
15%synergy
Twisted Sewer-Witch
18%inclusion14 decks77 decks
17%synergy
Gray Merchant of Asphodel
17%inclusion13 decks77 decks
-34%synergy
Razortooth Rats
16%inclusion12 decks77 decks
15%synergy
Refurbished Familiar
14%inclusion11 decks77 decks
12%synergy
Nezumi Graverobber
14%inclusion11 decks77 decks
13%synergy
Ravenous Rats
14%inclusion11 decks77 decks
13%synergy
Drainpipe Vermin
14%inclusion11 decks77 decks
13%synergy
Bog Rats
13%inclusion10 decks77 decks
13%synergy
Skullsnatcher
13%inclusion10 decks77 decks
12%synergy
Filth
12%inclusion9 decks77 decks
9%synergy
Yawgmoth, Thran Physician
12%inclusion9 decks77 decks
2%synergy
Okiba-Gang Shinobi
12%inclusion9 decks77 decks
11%synergy
Chittering Rats
10%inclusion8 decks77 decks
10%synergy
Relentless Rats
10%inclusion8 decks77 decks
9%synergy
Ruthless Radrat
10%inclusion8 decks77 decks
10%synergy
Nezumi Bladeblesser
10%inclusion8 decks77 decks
10%synergy
Sinuous Vermin
10%inclusion8 decks77 decks
10%synergy
Elephant-Rat
9.4%inclusion5 decks53 decks
9%synergy
Mukotai Ambusher
9.1%inclusion7 decks77 decks
8%synergy
Instants
Grim Affliction
39%inclusion30 decks77 decks
37%synergy
Defile
38%inclusion29 decks77 decks
1%synergy
Village Rites
36%inclusion28 decks77 decks
11%synergy
Go for the Throat
35%inclusion27 decks77 decks
12%synergy
Tainted Strike
34%inclusion26 decks77 decks
31%synergy
Withering Torment
27%inclusion21 decks77 decks
-4%synergy
Rat Out
23%inclusion18 decks77 decks
22%synergy
Deadly Dispute
23%inclusion18 decks77 decks
-2%synergy
Infernal Grasp
23%inclusion18 decks77 decks
-2%synergy
Corrupted Conviction
19%inclusion15 decks77 decks
7%synergy
Murder
18%inclusion14 decks77 decks
8%synergy
Fell the Profane
17%inclusion13 decks77 decks
-2%synergy
Malakir Rebirth
17%inclusion13 decks77 decks
-6%synergy
Deadly Rollick
16%inclusion12 decks77 decks
-9%synergy
Anoint with Affliction
16%inclusion12 decks77 decks
15%synergy
Tragic Slip
14%inclusion11 decks77 decks
-6%synergy
Cabal Ritual
13%inclusion10 decks77 decks
-5%synergy
Unbury
12%inclusion4 decks33 decks
11%synergy
Sudden Spoiling
12%inclusion9 decks77 decks
3%synergy
Hero's Downfall
9.1%inclusion7 decks77 decks
2%synergy
Sheoldred's Edict
9.1%inclusion7 decks77 decks
-5%synergy
Not Dead After All
9.1%inclusion7 decks77 decks
-2%synergy
Culling the Weak
9.1%inclusion7 decks77 decks
-7%synergy
Virulent Wound
7.8%inclusion6 decks77 decks
7%synergy
Hagra Mauling
6.5%inclusion5 decks77 decks
2%synergy
Consuming Corruption
6.5%inclusion5 decks77 decks
-9%synergy
Foul-Tongue Shriek
6.5%inclusion5 decks77 decks
5%synergy
Feign Death
6.5%inclusion5 decks77 decks
-2%synergy
Force of Despair
5.2%inclusion4 decks77 decks
-2%synergy
Imp's Mischief
5.2%inclusion4 decks77 decks
-19%synergy
Extinguish the Light
5.2%inclusion4 decks77 decks
5%synergy
Bitter Triumph
5.2%inclusion4 decks77 decks
-4%synergy
Raise the Draugr
5.2%inclusion4 decks77 decks
4%synergy
Sorceries
Revenge of the Rats
38%inclusion29 decks77 decks
35%synergy
Feed the Swarm
38%inclusion29 decks77 decks
-13%synergy
Kindred Dominance
32%inclusion25 decks77 decks
28%synergy
Bloodline Bidding
30%inclusion10 decks33 decks
26%synergy
Patriarch's Bidding
29%inclusion22 decks77 decks
24%synergy
Night's Whisper
29%inclusion22 decks77 decks
4%synergy
Crippling Fear
29%inclusion22 decks77 decks
25%synergy
Sign in Blood
27%inclusion21 decks77 decks
-8%synergy
Swarmyard Massacre
22%inclusion17 decks77 decks
20%synergy
Diabolic Intent
21%inclusion16 decks77 decks
6%synergy
Spread the Sickness
21%inclusion16 decks77 decks
20%synergy
Vat Emergence
19%inclusion15 decks77 decks
18%synergy
Read the Bones
17%inclusion13 decks77 decks
0%synergy
Diabolic Tutor
16%inclusion12 decks77 decks
1%synergy
Unearth
16%inclusion12 decks77 decks
7%synergy
Echoing Return
16%inclusion12 decks77 decks
12%synergy
Toxic Deluge
16%inclusion12 decks77 decks
-21%synergy
Bubbling Muck
14%inclusion11 decks77 decks
-1%synergy
Feed the Infection
14%inclusion11 decks77 decks
14%synergy
Reanimate
14%inclusion11 decks77 decks
-25%synergy
Fell
12%inclusion9 decks77 decks
8%synergy
Caress of Phyrexia
10%inclusion8 decks77 decks
10%synergy
Geth's Summons
10%inclusion8 decks77 decks
10%synergy
In Garruk's Wake
9.1%inclusion7 decks77 decks
5%synergy
Insatiable Avarice
9.1%inclusion7 decks77 decks
-3%synergy
Damnation
9.1%inclusion7 decks77 decks
-11%synergy
Pact of the Serpent
9.1%inclusion7 decks77 decks
7%synergy
Profane Tutor
7.8%inclusion6 decks77 decks
4%synergy
Grim Tutor
7.8%inclusion6 decks77 decks
-4%synergy
Unmarked Grave
6.5%inclusion5 decks77 decks
2%synergy
Mutilate
6.5%inclusion5 decks77 decks
-11%synergy
Blasphemous Edict
6.5%inclusion5 decks77 decks
-10%synergy
Plague of Vermin
6.5%inclusion5 decks77 decks
4%synergy
Haunting Voyage
5.2%inclusion4 decks77 decks
4%synergy
Exsanguinate
5.2%inclusion4 decks77 decks
-19%synergy
Syphon Mind
5.2%inclusion4 decks77 decks
-7%synergy
Lab Rats
5.2%inclusion4 decks77 decks
5%synergy
Gruesome Fate
5.2%inclusion4 decks77 decks
3%synergy
Rise of the Dark Realms
5.2%inclusion4 decks77 decks
-8%synergy
Utility Artifacts
Herald's Horn
49%inclusion38 decks77 decks
44%synergy
Skullclamp
39%inclusion30 decks77 decks
17%synergy
Contagion Clasp
29%inclusion22 decks77 decks
26%synergy
Vanquisher's Banner
27%inclusion21 decks77 decks
23%synergy
Thrumming Stone
22%inclusion17 decks77 decks
18%synergy
Swiftfoot Boots
18%inclusion14 decks77 decks
-13%synergy
Contagion Engine
17%inclusion13 decks77 decks
15%synergy
Coat of Arms
17%inclusion13 decks77 decks
14%synergy
Icon of Ancestry
16%inclusion12 decks77 decks
15%synergy
Grafted Exoskeleton
16%inclusion12 decks77 decks
14%synergy
Expedition Map
14%inclusion11 decks77 decks
2%synergy
Door of Destinies
14%inclusion11 decks77 decks
12%synergy
The Darkness Crystal
13%inclusion8 decks63 decks
-7%synergy
Chronicle of Victory
12%inclusion4 decks34 decks
9%synergy
Whip of Erebos
12%inclusion9 decks77 decks
1%synergy
Lightning Greaves
10%inclusion8 decks77 decks
-23%synergy
Sword of Truth and Justice
9.1%inclusion7 decks77 decks
8%synergy
Banner of Kinship
9.1%inclusion7 decks77 decks
7%synergy
Wayfarer's Bauble
6.5%inclusion5 decks77 decks
-9%synergy
Ashnod's Altar
6.5%inclusion5 decks77 decks
-13%synergy
Prosthetic Injector
6.5%inclusion5 decks77 decks
6%synergy
Gathering Stone
6.1%inclusion2 decks33 decks
5%synergy
Whispersilk Cloak
5.2%inclusion4 decks77 decks
-1%synergy
Eldrazi Monument
5.2%inclusion4 decks77 decks
3%synergy
Enchantments
Cover of Darkness
51%inclusion39 decks77 decks
48%synergy
Necrogen Communion
43%inclusion33 decks77 decks
41%synergy
Phyrexian Arena
36%inclusion28 decks77 decks
-3%synergy
Phyresis
26%inclusion20 decks77 decks
24%synergy
Bad Moon
21%inclusion16 decks77 decks
17%synergy
Haunted One
19%inclusion15 decks77 decks
17%synergy
Black Market Connections
14%inclusion11 decks77 decks
-10%synergy
Black Market
13%inclusion10 decks77 decks
-8%synergy
Grave Pact
13%inclusion10 decks77 decks
-6%synergy
Oversold Cemetery
10%inclusion8 decks77 decks
5%synergy
Glistening Oil
7.8%inclusion6 decks77 decks
7%synergy
Phyrexian Reclamation
7.8%inclusion6 decks77 decks
-2%synergy
Vampiric Rites
7.8%inclusion6 decks77 decks
2%synergy
Intimidation
7.8%inclusion6 decks77 decks
7%synergy
The Meathook Massacre
6.5%inclusion5 decks77 decks
-11%synergy
Tribute to Horobi
6.5%inclusion5 decks77 decks
5%synergy
Lord Skitter's Blessing
6.5%inclusion5 decks77 decks
6%synergy
Snake Cult Initiation
5.2%inclusion4 decks77 decks
5%synergy
No Mercy
5.2%inclusion4 decks77 decks
-2%synergy
Oubliette
5.2%inclusion4 decks77 decks
2%synergy
Planeswalkers
Vraska, Betrayal's Sting
40%inclusion31 decks77 decks
38%synergy
Liliana of the Dark Realms
16%inclusion12 decks77 decks
2%synergy
Utility Lands
Swarmyard
70%inclusion54 decks77 decks
64%synergy
Karn's Bastion
65%inclusion50 decks77 decks
61%synergy
Bojuka Bog
61%inclusion47 decks77 decks
14%synergy
Cabal Coffers
58%inclusion45 decks77 decks
4%synergy
Mudflat Village
52%inclusion40 decks77 decks
49%synergy
Rogue's Passage
51%inclusion39 decks77 decks
32%synergy
Urborg, Tomb of Yawgmoth
35%inclusion27 decks77 decks
-2%synergy
Three Tree City
32%inclusion25 decks77 decks
28%synergy
Witch's Cottage
30%inclusion23 decks77 decks
5%synergy
Mortuary Mire
26%inclusion20 decks77 decks
13%synergy
Nykthos, Shrine to Nyx
25%inclusion19 decks77 decks
-5%synergy
Cabal Stronghold
23%inclusion18 decks77 decks
-11%synergy
Reliquary Tower
22%inclusion17 decks77 decks
-8%synergy
Access Tunnel
22%inclusion17 decks77 decks
19%synergy
Phyrexian Tower
17%inclusion13 decks77 decks
-8%synergy
Secret Tunnel
17%inclusion7 decks42 decks
15%synergy
Crypt of Agadeem
16%inclusion12 decks77 decks
4%synergy
War Room
14%inclusion11 decks77 decks
-2%synergy
Castle Locthwain
14%inclusion11 decks77 decks
-3%synergy
Barren Moor
13%inclusion10 decks77 decks
3%synergy
Inkmoth Nexus
10%inclusion8 decks77 decks
9%synergy
Takenuma, Abandoned Mire
10%inclusion8 decks77 decks
-5%synergy
Desert of the Glorified
9.1%inclusion7 decks77 decks
6%synergy
Mutavault
9.1%inclusion7 decks77 decks
8%synergy
Temple of the False God
9.1%inclusion7 decks77 decks
1%synergy
Shizo, Death's Storehouse
7.8%inclusion6 decks77 decks
-2%synergy
The Dross Pits
7.8%inclusion6 decks77 decks
6%synergy
Minas Morgul, Dark Fortress
6.5%inclusion5 decks77 decks
3%synergy
Polluted Mire
6.5%inclusion5 decks77 decks
3%synergy
Peat Bog
6.5%inclusion5 decks77 decks
5%synergy
The Black Gate
5.2%inclusion4 decks77 decks
2%synergy
Deserted Temple
5.2%inclusion4 decks77 decks
1%synergy
Mana Artifacts
Sol Ring
86%inclusion66 decks77 decks
0%synergy
Arcane Signet
49%inclusion38 decks77 decks
-12%synergy
Glistening Sphere
45%inclusion35 decks77 decks
44%synergy
Patchwork Banner
27%inclusion21 decks77 decks
23%synergy
Staff of Compleation
26%inclusion20 decks77 decks
24%synergy
Heraldic Banner
18%inclusion14 decks77 decks
13%synergy
Charcoal Diamond
16%inclusion12 decks77 decks
-7%synergy
Mind Stone
14%inclusion11 decks77 decks
-15%synergy
The Soul Stone
11%inclusion6 decks55 decks
-3%synergy
Phyrexian Atlas
7.8%inclusion6 decks77 decks
7%synergy
Thought Vessel
6.5%inclusion5 decks77 decks
-19%synergy
Commander's Sphere
5.2%inclusion4 decks77 decks
-3%synergy
Lands
Swamp
100%inclusion77 decks77 decks
5%synergy
Path of Ancestry
40%inclusion31 decks77 decks
35%synergy
Cavern of Souls
27%inclusion21 decks77 decks
21%synergy
Fell the Profane
17%inclusion13 decks77 decks
-2%synergy
Malakir Rebirth
17%inclusion13 decks77 decks
-6%synergy
Command Tower
13%inclusion10 decks77 decks
7%synergy
Evolving Wilds
12%inclusion9 decks77 decks
8%synergy
Myriad Landscape
10%inclusion8 decks77 decks
-15%synergy
Hagra Mauling
6.5%inclusion5 decks77 decks
2%synergy
Escape Tunnel
6.5%inclusion5 decks77 decks
5%synergy
Ash Barrens
6.5%inclusion5 decks77 decks
5%synergy
Urza's Cave
5.2%inclusion4 decks77 decks
-3%synergy
Mirrex
5.2%inclusion4 decks77 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