Karumonix, the Rat King (Commander) - Proliferate

Karumonix, the Rat King
Rank #400
40decks
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
Blightbelly Rat
95%inclusion38 decks40 decks
92%synergy
Infectious Inquiry
83%inclusion33 decks40 decks
80%synergy
Ichor Rats
83%inclusion33 decks40 decks
80%synergy
Vraska's Fall
80%inclusion32 decks40 decks
77%synergy
Drown in Ichor
80%inclusion32 decks40 decks
76%synergy
Pack Rat
80%inclusion32 decks40 decks
74%synergy
Marrow-Gnawer
78%inclusion31 decks40 decks
74%synergy
Piper of the Swarm
80%inclusion32 decks40 decks
73%synergy
Crypt Rats
75%inclusion30 decks40 decks
71%synergy
Rancid Rats
73%inclusion29 decks40 decks
70%synergy
Top Cards
Ogre Slumlord
75%inclusion30 decks40 decks
65%synergy
Lord Skitter, Sewer King
75%inclusion30 decks40 decks
67%synergy
Whisper of the Dross
73%inclusion29 decks40 decks
70%synergy
Dark Ritual
73%inclusion29 decks40 decks
6%synergy
Typhoid Rats
73%inclusion29 decks40 decks
69%synergy
Tangled Colony
65%inclusion26 decks40 decks
62%synergy
Lord Skitter's Butcher
65%inclusion26 decks40 decks
62%synergy
Phyresis Outbreak
60%inclusion24 decks40 decks
58%synergy
Rat Colony
60%inclusion24 decks40 decks
54%synergy
Septic Rats
57%inclusion23 decks40 decks
56%synergy
Game Changers
Demonic Tutor
10%inclusion4 decks40 decks
-17%synergy
Bolas's Citadel
7.5%inclusion3 decks40 decks
-21%synergy
Vampiric Tutor
7.5%inclusion3 decks40 decks
-13%synergy
Creatures
Burglar Rat
53%inclusion21 decks40 decks
42%synergy
Voracious Vermin
53%inclusion21 decks40 decks
50%synergy
Persistent Marshstalker
50%inclusion20 decks40 decks
47%synergy
Stronghold Rats
50%inclusion20 decks40 decks
46%synergy
Gnat Miser
48%inclusion19 decks40 decks
45%synergy
Engine Rat
41%inclusion15 decks37 decks
39%synergy
Chittering Skitterling
38%inclusion15 decks40 decks
37%synergy
Ashcoat of the Shadow Swarm
38%inclusion15 decks40 decks
34%synergy
Nezumi Prowler
35%inclusion14 decks40 decks
34%synergy
Ratcatcher
35%inclusion14 decks40 decks
32%synergy
Wave of Rats
35%inclusion14 decks40 decks
33%synergy
Rat King, Verminister
33%inclusion6 decks18 decks
30%synergy
Ravenous Rats
33%inclusion13 decks40 decks
31%synergy
Pestilence Rats
33%inclusion13 decks40 decks
31%synergy
Nashi, Moon Sage's Scion
33%inclusion13 decks40 decks
29%synergy
Swarm of Rats
30%inclusion12 decks40 decks
28%synergy
Changeling Outcast
30%inclusion12 decks40 decks
25%synergy
Ruin Rat
30%inclusion12 decks40 decks
29%synergy
Ink-Eyes, Servant of Oni
28%inclusion11 decks40 decks
24%synergy
Chittering Witch
28%inclusion11 decks40 decks
23%synergy
Old Flitterfang
25%inclusion10 decks40 decks
24%synergy
Innocuous Rat
24%inclusion9 decks38 decks
23%synergy
Rat King, Pale Piper
24%inclusion4 decks17 decks
20%synergy
Gnawing Vermin
23%inclusion9 decks40 decks
21%synergy
Throat Slitter
23%inclusion9 decks40 decks
21%synergy
Mukotai Ambusher
20%inclusion8 decks40 decks
19%synergy
Nezumi Bladeblesser
20%inclusion8 decks40 decks
19%synergy
Nezumi Cutthroat
20%inclusion8 decks40 decks
19%synergy
Drainpipe Vermin
20%inclusion8 decks40 decks
19%synergy
Undercity Dire Rat
20%inclusion7 decks35 decks
18%synergy
Elephant-Rat
20%inclusion6 decks30 decks
20%synergy
Ruthless Radrat
18%inclusion7 decks40 decks
17%synergy
Skullsnatcher
18%inclusion7 decks40 decks
17%synergy
Razortooth Rats
18%inclusion7 decks40 decks
17%synergy
Nezumi Informant
18%inclusion7 decks40 decks
11%synergy
Nezumi Graverobber
15%inclusion6 decks40 decks
14%synergy
Thornplate Intimidator
15%inclusion6 decks40 decks
14%synergy
Daggerfang Duo
15%inclusion6 decks40 decks
14%synergy
Species Specialist
15%inclusion6 decks40 decks
12%synergy
Zodiac Rat
15%inclusion6 decks40 decks
15%synergy
Sinuous Vermin
15%inclusion6 decks40 decks
15%synergy
Locust Miser
15%inclusion6 decks40 decks
13%synergy
Yawgmoth, Thran Physician
15%inclusion6 decks40 decks
5%synergy
Chittering Rats
13%inclusion5 decks40 decks
12%synergy
Ayara, First of Locthwain
13%inclusion5 decks40 decks
-13%synergy
Filth
13%inclusion5 decks40 decks
10%synergy
Scrib Nibblers
13%inclusion5 decks40 decks
12%synergy
Valley Rotcaller
13%inclusion5 decks40 decks
10%synergy
Crypt Ghast
13%inclusion5 decks40 decks
-35%synergy
Scheming Aspirant
13%inclusion5 decks40 decks
12%synergy
Instants
Grim Affliction
48%inclusion19 decks40 decks
46%synergy
Defile
38%inclusion15 decks40 decks
2%synergy
Village Rites
35%inclusion14 decks40 decks
9%synergy
Tainted Strike
28%inclusion11 decks40 decks
25%synergy
Go for the Throat
25%inclusion10 decks40 decks
2%synergy
Rat Out
25%inclusion10 decks40 decks
24%synergy
Anoint with Affliction
23%inclusion9 decks40 decks
22%synergy
Tragic Slip
23%inclusion9 decks40 decks
3%synergy
Deadly Dispute
20%inclusion8 decks40 decks
-7%synergy
Murder
20%inclusion8 decks40 decks
10%synergy
Fell the Profane
18%inclusion7 decks40 decks
-2%synergy
Corrupted Conviction
18%inclusion7 decks40 decks
5%synergy
Withering Torment
16%inclusion6 decks38 decks
-16%synergy
Virulent Wound
13%inclusion5 decks40 decks
12%synergy
Consuming Corruption
10%inclusion4 decks40 decks
-6%synergy
Doom Blade
10%inclusion4 decks40 decks
3%synergy
Culling the Weak
10%inclusion4 decks40 decks
-7%synergy
Undying Malice
10%inclusion4 decks40 decks
-0%synergy
Infernal Grasp
10%inclusion4 decks40 decks
-15%synergy
Offer Immortality
10%inclusion4 decks40 decks
8%synergy
Hagra Mauling
7.5%inclusion3 decks40 decks
3%synergy
Sheoldred's Edict
7.5%inclusion3 decks40 decks
-7%synergy
Songs of the Damned
7.5%inclusion3 decks40 decks
2%synergy
Cabal Ritual
7.5%inclusion3 decks40 decks
-11%synergy
Darkness
7.5%inclusion3 decks40 decks
-3%synergy
Foul-Tongue Shriek
7.5%inclusion3 decks40 decks
6%synergy
Malakir Rebirth
7.5%inclusion3 decks40 decks
-16%synergy
Feign Death
7.5%inclusion3 decks40 decks
-1%synergy
Deadly Rollick
5.0%inclusion2 decks40 decks
-20%synergy
Not Dead After All
5.0%inclusion2 decks40 decks
-6%synergy
Bitter Triumph
5.0%inclusion2 decks40 decks
-5%synergy
Disfigure
5.0%inclusion2 decks40 decks
4%synergy
Nameless Inversion
5.0%inclusion2 decks40 decks
5%synergy
Sorceries
Vat Emergence
40%inclusion16 decks40 decks
39%synergy
Feed the Swarm
38%inclusion15 decks40 decks
-13%synergy
Sign in Blood
38%inclusion15 decks40 decks
2%synergy
Revenge of the Rats
29%inclusion11 decks38 decks
26%synergy
Splinter's Technique
28%inclusion5 decks18 decks
26%synergy
Crippling Fear
28%inclusion11 decks40 decks
25%synergy
Spread the Sickness
25%inclusion10 decks40 decks
24%synergy
Feed the Infection
25%inclusion10 decks40 decks
24%synergy
Swarmyard Massacre
23%inclusion9 decks40 decks
20%synergy
Read the Bones
23%inclusion9 decks40 decks
6%synergy
Night's Whisper
23%inclusion9 decks40 decks
-2%synergy
Kindred Dominance
20%inclusion8 decks40 decks
15%synergy
Lab Rats
18%inclusion7 decks40 decks
17%synergy
Plague of Vermin
18%inclusion7 decks40 decks
15%synergy
Bloodline Bidding
16%inclusion3 decks19 decks
12%synergy
Patriarch's Bidding
15%inclusion6 decks40 decks
11%synergy
Psychic Whorl
15%inclusion6 decks40 decks
15%synergy
Victimize
13%inclusion5 decks40 decks
-15%synergy
Bubbling Muck
13%inclusion5 decks40 decks
-3%synergy
Caress of Phyrexia
13%inclusion5 decks40 decks
12%synergy
Toxic Deluge
13%inclusion5 decks40 decks
-24%synergy
Diabolic Tutor
10%inclusion4 decks40 decks
-4%synergy
Unearth
10%inclusion4 decks40 decks
1%synergy
Fell
10%inclusion4 decks40 decks
7%synergy
Diabolic Intent
7.5%inclusion3 decks40 decks
-8%synergy
Reanimate
7.5%inclusion3 decks40 decks
-33%synergy
In Garruk's Wake
7.5%inclusion3 decks40 decks
4%synergy
Insatiable Avarice
7.5%inclusion3 decks40 decks
-4%synergy
Dirge of Dread
7.5%inclusion3 decks40 decks
7%synergy
Geth's Summons
7.5%inclusion3 decks40 decks
7%synergy
Gruesome Fate
7.5%inclusion3 decks40 decks
5%synergy
Beseech the Queen
7.5%inclusion3 decks40 decks
2%synergy
Final Vengeance
5.3%inclusion2 decks38 decks
4%synergy
Bone Splinters
5.0%inclusion2 decks40 decks
3%synergy
Haunting Voyage
5.0%inclusion2 decks40 decks
4%synergy
Echoing Return
5.0%inclusion2 decks40 decks
2%synergy
Mutilate
5.0%inclusion2 decks40 decks
-11%synergy
Bone Shards
5.0%inclusion2 decks40 decks
2%synergy
Syphon Mind
5.0%inclusion2 decks40 decks
-7%synergy
Assassinate
5.0%inclusion2 decks40 decks
5%synergy
Eaten Alive
5.0%inclusion2 decks40 decks
2%synergy
Damnation
5.0%inclusion2 decks40 decks
-15%synergy
Grim Tutor
5.0%inclusion2 decks40 decks
-7%synergy
Utility Artifacts
Jet Medallion
55%inclusion22 decks40 decks
-7%synergy
Contagion Clasp
53%inclusion21 decks40 decks
50%synergy
Bontu's Monument
53%inclusion21 decks40 decks
24%synergy
Contagion Engine
35%inclusion14 decks40 decks
33%synergy
Herald's Horn
35%inclusion14 decks40 decks
29%synergy
Swiftfoot Boots
30%inclusion12 decks40 decks
-1%synergy
Skullclamp
23%inclusion9 decks40 decks
0%synergy
Prosthetic Injector
18%inclusion7 decks40 decks
17%synergy
Banner of Kinship
13%inclusion5 decks38 decks
11%synergy
Icon of Ancestry
13%inclusion5 decks40 decks
12%synergy
Whip of Erebos
13%inclusion5 decks40 decks
2%synergy
Vanquisher's Banner
13%inclusion5 decks40 decks
9%synergy
Lightning Greaves
13%inclusion5 decks40 decks
-21%synergy
Grafted Exoskeleton
13%inclusion5 decks40 decks
11%synergy
The Darkness Crystal
11%inclusion4 decks35 decks
-9%synergy
Whispersilk Cloak
10%inclusion4 decks40 decks
4%synergy
Ashnod's Altar
7.5%inclusion3 decks40 decks
-12%synergy
Throne of Geth
7.5%inclusion3 decks40 decks
7%synergy
Coat of Arms
7.5%inclusion3 decks40 decks
5%synergy
Expedition Map
7.5%inclusion3 decks40 decks
-4%synergy
Door of Destinies
7.5%inclusion3 decks40 decks
5%synergy
Thornbite Staff
7.5%inclusion3 decks40 decks
5%synergy
Obelisk of Urd
7.5%inclusion3 decks40 decks
7%synergy
Chronicle of Victory
5.3%inclusion1 decks19 decks
3%synergy
Wayfarer's Bauble
5.0%inclusion2 decks40 decks
-10%synergy
Mimic Vat
5.0%inclusion2 decks40 decks
4%synergy
Sword of Truth and Justice
5.0%inclusion2 decks40 decks
4%synergy
Blade of Selves
5.0%inclusion2 decks40 decks
4%synergy
Thrumming Stone
5.0%inclusion2 decks40 decks
1%synergy
Basilisk Collar
5.0%inclusion2 decks40 decks
2%synergy
Enchantments
Necrogen Communion
55%inclusion22 decks40 decks
53%synergy
Cover of Darkness
50%inclusion20 decks40 decks
47%synergy
Phyrexian Arena
38%inclusion15 decks40 decks
-2%synergy
Phyresis
30%inclusion12 decks40 decks
28%synergy
Bad Moon
25%inclusion10 decks40 decks
22%synergy
Haunted One
18%inclusion7 decks40 decks
15%synergy
Oversold Cemetery
18%inclusion7 decks40 decks
12%synergy
Grave Pact
15%inclusion6 decks40 decks
-5%synergy
Glistening Oil
13%inclusion5 decks40 decks
12%synergy
Tribute to Horobi
13%inclusion5 decks40 decks
12%synergy
Black Market Connections
13%inclusion5 decks40 decks
-12%synergy
Black Market
10%inclusion4 decks40 decks
-11%synergy
Lord Skitter's Blessing
10%inclusion4 decks40 decks
9%synergy
Phyrexian Reclamation
7.5%inclusion3 decks40 decks
-2%synergy
Vampiric Rites
7.5%inclusion3 decks40 decks
1%synergy
Relic Putrescence
7.5%inclusion3 decks40 decks
7%synergy
Ninja Teen
5.6%inclusion1 decks18 decks
4%synergy
Intimidation
5.0%inclusion2 decks40 decks
4%synergy
Demonic Embrace
5.0%inclusion2 decks40 decks
4%synergy
Planeswalkers
Vraska, Betrayal's Sting
53%inclusion21 decks40 decks
50%synergy
Liliana of the Dark Realms
15%inclusion6 decks40 decks
1%synergy
Utility Lands
Swarmyard
73%inclusion29 decks40 decks
67%synergy
Karn's Bastion
73%inclusion29 decks40 decks
69%synergy
Bojuka Bog
55%inclusion22 decks40 decks
8%synergy
Mudflat Village
43%inclusion17 decks40 decks
40%synergy
Rogue's Passage
43%inclusion17 decks40 decks
23%synergy
Witch's Cottage
40%inclusion16 decks40 decks
16%synergy
Cabal Coffers
40%inclusion16 decks40 decks
-15%synergy
Access Tunnel
33%inclusion13 decks40 decks
30%synergy
Cabal Stronghold
30%inclusion12 decks40 decks
-4%synergy
Reliquary Tower
25%inclusion10 decks40 decks
-5%synergy
Crypt of Agadeem
23%inclusion9 decks40 decks
11%synergy
Phyrexian Tower
20%inclusion8 decks40 decks
-6%synergy
Mortuary Mire
20%inclusion8 decks40 decks
7%synergy
Urborg, Tomb of Yawgmoth
20%inclusion8 decks40 decks
-18%synergy
Nykthos, Shrine to Nyx
18%inclusion7 decks40 decks
-12%synergy
Three Tree City
18%inclusion7 decks40 decks
13%synergy
Barren Moor
13%inclusion5 decks40 decks
3%synergy
Secret Tunnel
13%inclusion3 decks24 decks
11%synergy
The Dross Pits
10%inclusion4 decks40 decks
9%synergy
Peat Bog
10%inclusion4 decks40 decks
8%synergy
Castle Locthwain
10%inclusion4 decks40 decks
-7%synergy
Temple of the False God
10%inclusion4 decks40 decks
2%synergy
Shizo, Death's Storehouse
7.5%inclusion3 decks40 decks
-3%synergy
Vault of Whispers
7.5%inclusion3 decks40 decks
2%synergy
Command Beacon
7.5%inclusion3 decks40 decks
-1%synergy
Takenuma, Abandoned Mire
7.5%inclusion3 decks40 decks
-8%synergy
Memorial to Folly
5.0%inclusion2 decks40 decks
2%synergy
Vesuva
5.0%inclusion2 decks40 decks
2%synergy
The Black Gate
5.0%inclusion2 decks40 decks
2%synergy
Inkmoth Nexus
5.0%inclusion2 decks40 decks
4%synergy
War Room
5.0%inclusion2 decks40 decks
-11%synergy
Minas Morgul, Dark Fortress
5.0%inclusion2 decks40 decks
2%synergy
Thespian's Stage
5.0%inclusion2 decks40 decks
-0%synergy
Dark Depths
5.0%inclusion2 decks40 decks
4%synergy
Leechridden Swamp
5.0%inclusion2 decks40 decks
2%synergy
Everglades
5.0%inclusion2 decks40 decks
4%synergy
Mana Artifacts
Sol Ring
83%inclusion33 decks40 decks
-3%synergy
Glistening Sphere
60%inclusion24 decks40 decks
59%synergy
Arcane Signet
45%inclusion18 decks40 decks
-17%synergy
Staff of Compleation
43%inclusion17 decks40 decks
41%synergy
Patchwork Banner
25%inclusion10 decks40 decks
21%synergy
Charcoal Diamond
18%inclusion7 decks40 decks
-4%synergy
Phyrexian Atlas
18%inclusion7 decks40 decks
17%synergy
Mind Stone
18%inclusion7 decks40 decks
-11%synergy
Commander's Sphere
10%inclusion4 decks40 decks
2%synergy
Heraldic Banner
10%inclusion4 decks40 decks
5%synergy
Thought Vessel
7.5%inclusion3 decks40 decks
-17%synergy
Caged Sun
5.0%inclusion2 decks40 decks
-6%synergy
Everflowing Chalice
5.0%inclusion2 decks40 decks
-0%synergy
Lands
Swamp
100%inclusion40 decks40 decks
5%synergy
Path of Ancestry
48%inclusion19 decks40 decks
42%synergy
Myriad Landscape
23%inclusion9 decks40 decks
-2%synergy
Fell the Profane
18%inclusion7 decks40 decks
-2%synergy
Escape Tunnel
15%inclusion6 decks40 decks
14%synergy
Cavern of Souls
15%inclusion6 decks40 decks
8%synergy
Command Tower
10%inclusion4 decks40 decks
4%synergy
Urza's Cave
10%inclusion4 decks40 decks
2%synergy
Evolving Wilds
10%inclusion4 decks40 decks
6%synergy
Hagra Mauling
7.5%inclusion3 decks40 decks
3%synergy
The Seedcore
7.5%inclusion3 decks40 decks
7%synergy
Ash Barrens
7.5%inclusion3 decks40 decks
6%synergy
Demolition Field
7.5%inclusion3 decks40 decks
2%synergy
Malakir Rebirth
7.5%inclusion3 decks40 decks
-16%synergy
Mirrex
5.0%inclusion2 decks40 decks
4%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