Karumonix, the Rat King (Commander) - Expensive Infect

Karumonix, the Rat King
Rank #393
50decks
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
Marrow-Gnawer
98%inclusion49 decks50 decks
95%synergy
Swarmyard
94%inclusion47 decks50 decks
88%synergy
Piper of the Swarm
92%inclusion46 decks50 decks
85%synergy
Blightbelly Rat
84%inclusion42 decks50 decks
81%synergy
Infectious Inquiry
78%inclusion39 decks50 decks
75%synergy
Lord Skitter, Sewer King
82%inclusion41 decks50 decks
74%synergy
Ashcoat of the Shadow Swarm
76%inclusion38 decks50 decks
73%synergy
Ichor Rats
74%inclusion37 decks50 decks
71%synergy
Pack Rat
76%inclusion38 decks50 decks
70%synergy
Phyresis Outbreak
70%inclusion35 decks50 decks
68%synergy
Top Cards
Jet Medallion
82%inclusion41 decks50 decks
20%synergy
Ogre Slumlord
78%inclusion39 decks50 decks
68%synergy
Dark Ritual
72%inclusion36 decks50 decks
5%synergy
Vraska's Fall
70%inclusion35 decks50 decks
67%synergy
Cover of Darkness
70%inclusion35 decks50 decks
67%synergy
Herald's Horn
62%inclusion31 decks50 decks
56%synergy
Septic Rats
62%inclusion31 decks50 decks
60%synergy
Vraska, Betrayal's Sting
58%inclusion29 decks50 decks
55%synergy
Bontu's Monument
56%inclusion28 decks50 decks
28%synergy
Drown in Ichor
56%inclusion28 decks50 decks
52%synergy
Game Changers
Demonic Tutor
70%inclusion35 decks50 decks
43%synergy
Vampiric Tutor
56%inclusion28 decks50 decks
35%synergy
Bolas's Citadel
26%inclusion13 decks50 decks
-2%synergy
Imperial Seal
18%inclusion9 decks50 decks
11%synergy
Ancient Tomb
14%inclusion7 decks50 decks
2%synergy
Necropotence
14%inclusion7 decks50 decks
-1%synergy
The One Ring
6.0%inclusion3 decks50 decks
-3%synergy
Chrome Mox
6.0%inclusion3 decks50 decks
-0%synergy
Creatures
Ratcatcher
52%inclusion26 decks50 decks
49%synergy
Lord Skitter's Butcher
50%inclusion25 decks50 decks
47%synergy
Rancid Rats
50%inclusion25 decks50 decks
48%synergy
Tangled Colony
42%inclusion21 decks50 decks
39%synergy
Crypt Ghast
42%inclusion21 decks50 decks
-5%synergy
Crypt Rats
40%inclusion20 decks50 decks
35%synergy
Rat Colony
40%inclusion20 decks50 decks
34%synergy
Stronghold Rats
38%inclusion19 decks50 decks
34%synergy
Persistent Marshstalker
36%inclusion18 decks50 decks
33%synergy
Changeling Outcast
36%inclusion18 decks50 decks
31%synergy
Nashi, Moon Sage's Scion
36%inclusion18 decks50 decks
32%synergy
Typhoid Rats
36%inclusion18 decks50 decks
32%synergy
Rat King, Verminister
33%inclusion5 decks15 decks
30%synergy
Ayara, First of Locthwain
32%inclusion16 decks50 decks
7%synergy
Gnat Miser
32%inclusion16 decks50 decks
29%synergy
Yawgmoth, Thran Physician
30%inclusion15 decks50 decks
20%synergy
Species Specialist
28%inclusion14 decks50 decks
25%synergy
Burglar Rat
26%inclusion13 decks50 decks
15%synergy
Wave of Rats
26%inclusion13 decks50 decks
24%synergy
Ink-Eyes, Servant of Oni
24%inclusion12 decks50 decks
21%synergy
Voracious Vermin
24%inclusion12 decks50 decks
21%synergy
Chittering Skitterling
22%inclusion11 decks50 decks
21%synergy
Chittering Witch
22%inclusion11 decks50 decks
18%synergy
Rat King, Pale Piper
21%inclusion3 decks14 decks
17%synergy
Roaming Throne
20%inclusion10 decks50 decks
17%synergy
Throat Slitter
20%inclusion10 decks50 decks
18%synergy
Nezumi Informant
20%inclusion10 decks50 decks
14%synergy
Relentless Rats
18%inclusion9 decks50 decks
16%synergy
Gray Merchant of Asphodel
18%inclusion9 decks50 decks
-33%synergy
Locust Miser
18%inclusion9 decks50 decks
16%synergy
Ruthless Radrat
16%inclusion8 decks50 decks
15%synergy
Pestilence Rats
16%inclusion8 decks50 decks
14%synergy
Skithiryx, the Blight Dragon
16%inclusion8 decks50 decks
15%synergy
Nezumi Graverobber
14%inclusion7 decks50 decks
13%synergy
Filth
14%inclusion7 decks50 decks
12%synergy
Swarm of Rats
14%inclusion7 decks50 decks
12%synergy
Nezumi Prowler
14%inclusion7 decks50 decks
13%synergy
Old Flitterfang
14%inclusion7 decks50 decks
13%synergy
Engine Rat
13%inclusion5 decks38 decks
11%synergy
Zodiac Rat
12%inclusion6 decks50 decks
12%synergy
Valley Rotcaller
12%inclusion6 decks50 decks
9%synergy
Nezumi Cutthroat
12%inclusion6 decks50 decks
11%synergy
Refurbished Familiar
10%inclusion5 decks50 decks
8%synergy
Boggart Trawler
10%inclusion5 decks50 decks
1%synergy
Razortooth Rats
10%inclusion5 decks50 decks
9%synergy
Twisted Sewer-Witch
10%inclusion5 decks50 decks
9%synergy
Plague Myr
8.0%inclusion4 decks50 decks
7%synergy
Undercity Dire Rat
6.7%inclusion2 decks30 decks
5%synergy
Changeling Wayfinder
6.3%inclusion1 decks16 decks
6%synergy
Patron of the Nezumi
6.0%inclusion3 decks50 decks
5%synergy
Instants
Deadly Rollick
48%inclusion24 decks50 decks
23%synergy
Whisper of the Dross
40%inclusion20 decks50 decks
37%synergy
Go for the Throat
38%inclusion19 decks50 decks
15%synergy
Malakir Rebirth
36%inclusion18 decks50 decks
13%synergy
Fell the Profane
32%inclusion16 decks50 decks
13%synergy
Tainted Strike
32%inclusion16 decks50 decks
29%synergy
Grim Affliction
26%inclusion13 decks50 decks
24%synergy
Village Rites
24%inclusion12 decks50 decks
-2%synergy
Defile
22%inclusion11 decks50 decks
-14%synergy
Tragic Slip
22%inclusion11 decks50 decks
3%synergy
Anoint with Affliction
18%inclusion9 decks50 decks
17%synergy
Withering Torment
15%inclusion7 decks46 decks
-16%synergy
Cabal Ritual
14%inclusion7 decks50 decks
-4%synergy
Infernal Grasp
14%inclusion7 decks50 decks
-11%synergy
Bitter Triumph
12%inclusion6 decks50 decks
2%synergy
Hagra Mauling
10%inclusion5 decks50 decks
6%synergy
Hero's Downfall
10%inclusion5 decks50 decks
3%synergy
Imp's Mischief
10%inclusion5 decks50 decks
-15%synergy
Corrupted Conviction
10%inclusion5 decks50 decks
-3%synergy
Sudden Spoiling
10%inclusion5 decks50 decks
1%synergy
Sheoldred's Edict
8.0%inclusion4 decks50 decks
-7%synergy
Snuff Out
8.0%inclusion4 decks50 decks
-5%synergy
Deadly Dispute
8.0%inclusion4 decks50 decks
-18%synergy
Doom Blade
8.0%inclusion4 decks50 decks
1%synergy
Withering Boon
8.0%inclusion4 decks50 decks
4%synergy
Foul-Tongue Shriek
8.0%inclusion4 decks50 decks
6%synergy
Force of Despair
6.0%inclusion3 decks50 decks
-2%synergy
Rat Out
6.0%inclusion3 decks50 decks
5%synergy
Not Dead After All
6.0%inclusion3 decks50 decks
-5%synergy
Consuming Corruption
6.0%inclusion3 decks50 decks
-10%synergy
Culling the Weak
6.0%inclusion3 decks50 decks
-11%synergy
Supernatural Stamina
6.0%inclusion3 decks50 decks
-2%synergy
Virulent Wound
6.0%inclusion3 decks50 decks
6%synergy
Murder
6.0%inclusion3 decks50 decks
-4%synergy
Plumb the Forbidden
6.0%inclusion3 decks50 decks
2%synergy
Offer Immortality
6.0%inclusion3 decks50 decks
4%synergy
Curtains' Call
6.0%inclusion3 decks50 decks
4%synergy
Breathe Your Last
6.0%inclusion3 decks50 decks
4%synergy
Zuko's Exile
5.3%inclusion1 decks19 decks
5%synergy
Sorceries
Kindred Dominance
48%inclusion24 decks50 decks
43%synergy
Feed the Swarm
44%inclusion22 decks50 decks
-6%synergy
Swarmyard Massacre
41%inclusion20 decks49 decks
38%synergy
Patriarch's Bidding
36%inclusion18 decks50 decks
32%synergy
Reanimate
26%inclusion13 decks50 decks
-14%synergy
Bloodline Bidding
25%inclusion4 decks16 decks
21%synergy
Damnation
24%inclusion12 decks50 decks
4%synergy
Plague of Vermin
22%inclusion11 decks50 decks
20%synergy
Diabolic Intent
20%inclusion10 decks50 decks
5%synergy
Revenge of the Rats
18%inclusion8 decks44 decks
15%synergy
Night's Whisper
18%inclusion9 decks50 decks
-7%synergy
Toxic Deluge
18%inclusion9 decks50 decks
-19%synergy
Crippling Fear
18%inclusion9 decks50 decks
15%synergy
Pact of the Serpent
18%inclusion9 decks50 decks
16%synergy
Vat Emergence
16%inclusion8 decks50 decks
15%synergy
Torment of Hailfire
14%inclusion7 decks50 decks
-1%synergy
Haunting Voyage
14%inclusion7 decks50 decks
13%synergy
Agadeem's Awakening
14%inclusion7 decks50 decks
7%synergy
Echoing Return
14%inclusion7 decks50 decks
11%synergy
Sign in Blood
14%inclusion7 decks50 decks
-21%synergy
Grim Tutor
14%inclusion7 decks50 decks
2%synergy
Insatiable Avarice
12%inclusion6 decks50 decks
1%synergy
Geth's Summons
12%inclusion6 decks50 decks
12%synergy
Diabolic Tutor
10%inclusion5 decks50 decks
-4%synergy
Bubbling Muck
10%inclusion5 decks50 decks
-6%synergy
Forever Young
8.0%inclusion4 decks50 decks
7%synergy
Unearth
8.0%inclusion4 decks50 decks
-1%synergy
Exsanguinate
8.0%inclusion4 decks50 decks
-17%synergy
Beseech the Mirror
8.0%inclusion4 decks50 decks
1%synergy
Shredder's Technique
7.1%inclusion1 decks14 decks
4%synergy
Spread the Sickness
6.0%inclusion3 decks50 decks
5%synergy
Feed the Infection
6.0%inclusion3 decks50 decks
5%synergy
Caress of Phyrexia
6.0%inclusion3 decks50 decks
5%synergy
Syphon Mind
6.0%inclusion3 decks50 decks
-6%synergy
Gruesome Fate
6.0%inclusion3 decks50 decks
4%synergy
Desperate Plea
5.6%inclusion1 decks18 decks
5%synergy
Utility Artifacts
Skullclamp
46%inclusion23 decks50 decks
24%synergy
Chronicle of Victory
38%inclusion6 decks16 decks
35%synergy
Contagion Engine
34%inclusion17 decks50 decks
32%synergy
Thrumming Stone
30%inclusion15 decks50 decks
26%synergy
Vanquisher's Banner
28%inclusion14 decks50 decks
24%synergy
Contagion Clasp
26%inclusion13 decks50 decks
24%synergy
Sword of Truth and Justice
26%inclusion13 decks50 decks
25%synergy
Lightning Greaves
24%inclusion12 decks50 decks
-10%synergy
Door of Destinies
22%inclusion11 decks50 decks
20%synergy
Grafted Exoskeleton
18%inclusion9 decks50 decks
17%synergy
Whip of Erebos
16%inclusion8 decks50 decks
5%synergy
Akroma's Memorial
16%inclusion8 decks50 decks
15%synergy
Gathering Stone
13%inclusion2 decks16 decks
11%synergy
Coat of Arms
12%inclusion6 decks50 decks
9%synergy
Expedition Map
12%inclusion6 decks50 decks
0%synergy
Swiftfoot Boots
12%inclusion6 decks50 decks
-19%synergy
Thornbite Staff
12%inclusion6 decks50 decks
9%synergy
Prosthetic Injector
10%inclusion5 decks50 decks
10%synergy
The Darkness Crystal
10%inclusion3 decks30 decks
-10%synergy
Sensei's Divining Top
8.0%inclusion4 decks50 decks
-0%synergy
Eldrazi Monument
8.0%inclusion4 decks50 decks
6%synergy
Aetherflux Reservoir
6.0%inclusion3 decks50 decks
-3%synergy
Scroll Rack
6.0%inclusion3 decks50 decks
5%synergy
Wishclaw Talisman
6.0%inclusion3 decks50 decks
-1%synergy
Sword of Hearth and Home
6.0%inclusion3 decks50 decks
5%synergy
Commander's Plate
6.0%inclusion3 decks50 decks
-0%synergy
Enchantments
Phyrexian Arena
46%inclusion23 decks50 decks
7%synergy
Grave Pact
42%inclusion21 decks50 decks
22%synergy
Black Market Connections
36%inclusion18 decks50 decks
12%synergy
Necrogen Communion
30%inclusion15 decks50 decks
28%synergy
Haunted One
24%inclusion12 decks50 decks
21%synergy
Black Market
20%inclusion10 decks50 decks
-1%synergy
Oversold Cemetery
20%inclusion10 decks50 decks
15%synergy
Phyresis
16%inclusion8 decks50 decks
14%synergy
Dictate of Erebos
14%inclusion7 decks50 decks
3%synergy
Bad Moon
12%inclusion6 decks50 decks
9%synergy
Glistening Oil
10%inclusion5 decks50 decks
9%synergy
Dark Prophecy
10%inclusion5 decks50 decks
6%synergy
The Meathook Massacre
8.0%inclusion4 decks50 decks
-9%synergy
Phyrexian Reclamation
8.0%inclusion4 decks50 decks
-2%synergy
Relic Putrescence
8.0%inclusion4 decks50 decks
8%synergy
Tribute to Horobi
6.0%inclusion3 decks50 decks
5%synergy
Lord Skitter's Blessing
6.0%inclusion3 decks50 decks
5%synergy
Nowhere to Run
6.0%inclusion3 decks50 decks
3%synergy
Planeswalkers
Liliana of the Dark Realms
20%inclusion10 decks50 decks
6%synergy
Utility Lands
Cabal Coffers
92%inclusion46 decks50 decks
37%synergy
Nykthos, Shrine to Nyx
84%inclusion42 decks50 decks
54%synergy
Urborg, Tomb of Yawgmoth
78%inclusion39 decks50 decks
40%synergy
Karn's Bastion
72%inclusion36 decks50 decks
68%synergy
Bojuka Bog
60%inclusion30 decks50 decks
13%synergy
Cabal Stronghold
60%inclusion30 decks50 decks
26%synergy
Phyrexian Tower
56%inclusion28 decks50 decks
30%synergy
Three Tree City
48%inclusion24 decks50 decks
43%synergy
Mudflat Village
44%inclusion22 decks50 decks
41%synergy
Shizo, Death's Storehouse
36%inclusion18 decks50 decks
26%synergy
Crypt of Agadeem
32%inclusion16 decks50 decks
21%synergy
Witch's Cottage
32%inclusion16 decks50 decks
7%synergy
Rogue's Passage
32%inclusion16 decks50 decks
13%synergy
Takenuma, Abandoned Mire
30%inclusion15 decks50 decks
14%synergy
Mortuary Mire
26%inclusion13 decks50 decks
13%synergy
Inkmoth Nexus
24%inclusion12 decks50 decks
23%synergy
Castle Locthwain
24%inclusion12 decks50 decks
7%synergy
Reliquary Tower
24%inclusion12 decks50 decks
-6%synergy
Secret Tunnel
21%inclusion4 decks19 decks
20%synergy
War Room
16%inclusion8 decks50 decks
-0%synergy
Urza's Saga
12%inclusion6 decks50 decks
4%synergy
Volrath's Stronghold
12%inclusion6 decks50 decks
8%synergy
Minas Morgul, Dark Fortress
12%inclusion6 decks50 decks
9%synergy
Access Tunnel
12%inclusion6 decks50 decks
9%synergy
Lake of the Dead
10%inclusion5 decks50 decks
5%synergy
Barren Moor
8.0%inclusion4 decks50 decks
-2%synergy
Mutavault
8.0%inclusion4 decks50 decks
7%synergy
Deserted Temple
8.0%inclusion4 decks50 decks
4%synergy
Strip Mine
8.0%inclusion4 decks50 decks
5%synergy
Vault of Whispers
6.0%inclusion3 decks50 decks
1%synergy
Vesuva
6.0%inclusion3 decks50 decks
3%synergy
The Black Gate
6.0%inclusion3 decks50 decks
3%synergy
Command Beacon
6.0%inclusion3 decks50 decks
-2%synergy
Thespian's Stage
6.0%inclusion3 decks50 decks
1%synergy
Leechridden Swamp
6.0%inclusion3 decks50 decks
3%synergy
Mana Artifacts
Sol Ring
84%inclusion42 decks50 decks
-2%synergy
Glistening Sphere
68%inclusion34 decks50 decks
67%synergy
Arcane Signet
46%inclusion23 decks50 decks
-16%synergy
Staff of Compleation
36%inclusion18 decks50 decks
34%synergy
The Soul Stone
32%inclusion8 decks25 decks
17%synergy
Patchwork Banner
24%inclusion12 decks50 decks
20%synergy
Throne of Eldraine
20%inclusion10 decks50 decks
10%synergy
Firdoch Core
13%inclusion2 decks16 decks
12%synergy
Extraplanar Lens
12%inclusion6 decks50 decks
7%synergy
Caged Sun
10%inclusion5 decks50 decks
-1%synergy
Gauntlet of Power
10%inclusion5 decks50 decks
7%synergy
Thought Vessel
10%inclusion5 decks50 decks
-15%synergy
Nyx Lotus
10%inclusion5 decks50 decks
4%synergy
Charcoal Diamond
8.0%inclusion4 decks50 decks
-14%synergy
Heraldic Banner
8.0%inclusion4 decks50 decks
3%synergy
Lotus Petal
6.0%inclusion3 decks50 decks
-1%synergy
Fellwar Stone
6.0%inclusion3 decks50 decks
-8%synergy
Phyrexian Atlas
6.0%inclusion3 decks50 decks
6%synergy
Mind Stone
6.0%inclusion3 decks50 decks
-22%synergy
Mox Opal
6.0%inclusion3 decks50 decks
3%synergy
White Lotus Tile
5.3%inclusion1 decks19 decks
5%synergy
Lands
Swamp
84%inclusion42 decks50 decks
-11%synergy
Cavern of Souls
64%inclusion32 decks50 decks
57%synergy
Path of Ancestry
44%inclusion22 decks50 decks
39%synergy
Malakir Rebirth
36%inclusion18 decks50 decks
13%synergy
Fell the Profane
32%inclusion16 decks50 decks
13%synergy
Myriad Landscape
22%inclusion11 decks50 decks
-3%synergy
Snow-Covered Swamp
18%inclusion9 decks50 decks
11%synergy
Agadeem's Awakening
14%inclusion7 decks50 decks
7%synergy
Hagra Mauling
10%inclusion5 decks50 decks
6%synergy
Command Tower
10%inclusion5 decks50 decks
4%synergy
Boggart Trawler
10%inclusion5 decks50 decks
1%synergy
Urza's Cave
8.0%inclusion4 decks50 decks
-0%synergy
Mirrex
6.0%inclusion3 decks50 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