Karumonix, the Rat King (Commander) - Upgraded Rats

Karumonix, the Rat King
Rank #385
24decks
As CommanderAs CardAverage DeckDecks
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Budget
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Background image for Building Rat Typal With Marrow-Gnawer
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.
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Enchantments
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Utility Lands
Mana Artifacts
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Rat King, Pale Piper
50%inclusion6 decks12 decks
46%synergy
Big Apple, 3 a.m.
33%inclusion4 decks12 decks
31%synergy
Shredder's Technique
23%inclusion3 decks13 decks
19%synergy
Rat King, Verminister
21%inclusion3 decks14 decks
18%synergy
Swift Demise
8.3%inclusion1 decks12 decks
8%synergy
High Synergy Cards
Infectious Inquiry
92%inclusion22 decks24 decks
89%synergy
Blightbelly Rat
92%inclusion22 decks24 decks
88%synergy
Piper of the Swarm
92%inclusion22 decks24 decks
85%synergy
Ichor Rats
88%inclusion21 decks24 decks
84%synergy
Marrow-Gnawer
83%inclusion20 decks24 decks
80%synergy
Vraska's Fall
83%inclusion20 decks24 decks
80%synergy
Drown in Ichor
79%inclusion19 decks24 decks
75%synergy
Lord Skitter, Sewer King
83%inclusion20 decks24 decks
75%synergy
Ogre Slumlord
83%inclusion20 decks24 decks
73%synergy
Karn's Bastion
75%inclusion18 decks24 decks
71%synergy
Top Cards
Pack Rat
71%inclusion17 decks24 decks
65%synergy
Septic Rats
71%inclusion17 decks24 decks
69%synergy
Stronghold Rats
67%inclusion16 decks24 decks
63%synergy
Tangled Colony
63%inclusion15 decks24 decks
59%synergy
Dark Ritual
63%inclusion15 decks24 decks
-4%synergy
Herald's Horn
63%inclusion15 decks24 decks
57%synergy
Whisper of the Dross
58%inclusion14 decks24 decks
56%synergy
Burglar Rat
58%inclusion14 decks24 decks
47%synergy
Rancid Rats
58%inclusion14 decks24 decks
56%synergy
Crypt Rats
54%inclusion13 decks24 decks
50%synergy
Game Changers
Vampiric Tutor
33%inclusion8 decks24 decks
12%synergy
Demonic Tutor
29%inclusion7 decks24 decks
2%synergy
Creatures
Lord Skitter's Butcher
54%inclusion13 decks24 decks
51%synergy
Persistent Marshstalker
54%inclusion13 decks24 decks
51%synergy
Voracious Vermin
54%inclusion13 decks24 decks
51%synergy
Typhoid Rats
54%inclusion13 decks24 decks
50%synergy
Ratcatcher
50%inclusion12 decks24 decks
47%synergy
Rat Colony
50%inclusion12 decks24 decks
44%synergy
Chittering Skitterling
46%inclusion11 decks24 decks
45%synergy
Nezumi Informant
46%inclusion11 decks24 decks
39%synergy
Gnat Miser
46%inclusion11 decks24 decks
43%synergy
Nashi, Moon Sage's Scion
46%inclusion11 decks24 decks
42%synergy
Ink-Eyes, Servant of Oni
42%inclusion10 decks24 decks
38%synergy
Ashcoat of the Shadow Swarm
42%inclusion10 decks24 decks
38%synergy
Wave of Rats
38%inclusion9 decks24 decks
36%synergy
Ayara, First of Locthwain
33%inclusion8 decks24 decks
8%synergy
Gray Merchant of Asphodel
29%inclusion7 decks24 decks
-22%synergy
Throat Slitter
29%inclusion7 decks24 decks
27%synergy
Swarm of Rats
29%inclusion7 decks24 decks
27%synergy
Chittering Witch
29%inclusion7 decks24 decks
25%synergy
Changeling Outcast
29%inclusion7 decks24 decks
24%synergy
Pestilence Rats
29%inclusion7 decks24 decks
27%synergy
Ravenous Rats
25%inclusion6 decks24 decks
23%synergy
Gnawing Vermin
25%inclusion6 decks24 decks
23%synergy
Nezumi Prowler
25%inclusion6 decks24 decks
24%synergy
Undercity Dire Rat
24%inclusion5 decks21 decks
22%synergy
Locust Miser
21%inclusion5 decks24 decks
19%synergy
Twisted Sewer-Witch
21%inclusion5 decks24 decks
19%synergy
Nezumi Cutthroat
21%inclusion5 decks24 decks
20%synergy
Crypt Ghast
21%inclusion5 decks24 decks
-27%synergy
Bog Rats
17%inclusion4 decks24 decks
16%synergy
Species Specialist
17%inclusion4 decks24 decks
13%synergy
Adaptive Automaton
17%inclusion4 decks24 decks
16%synergy
Valley Rotcaller
17%inclusion4 decks24 decks
14%synergy
Yawgmoth, Thran Physician
17%inclusion4 decks24 decks
7%synergy
Ruin Rat
17%inclusion4 decks24 decks
15%synergy
Razortooth Rats
13%inclusion3 decks24 decks
12%synergy
Nezumi Bone-Reader
13%inclusion3 decks24 decks
12%synergy
Okiba-Gang Shinobi
13%inclusion3 decks24 decks
12%synergy
Patron of the Nezumi
8.3%inclusion2 decks24 decks
8%synergy
Chittering Rats
8.3%inclusion2 decks24 decks
8%synergy
Relentless Rats
8.3%inclusion2 decks24 decks
7%synergy
Nezumi Graverobber
8.3%inclusion2 decks24 decks
7%synergy
Ruthless Radrat
8.3%inclusion2 decks24 decks
8%synergy
Defiler of Flesh
8.3%inclusion2 decks24 decks
4%synergy
Filth
8.3%inclusion2 decks24 decks
6%synergy
Bloodline Pretender
8.3%inclusion2 decks24 decks
8%synergy
Skullsnatcher
8.3%inclusion2 decks24 decks
8%synergy
Sinuous Vermin
8.3%inclusion2 decks24 decks
8%synergy
Drainpipe Vermin
8.3%inclusion2 decks24 decks
7%synergy
Instants
Go for the Throat
42%inclusion10 decks24 decks
19%synergy
Village Rites
42%inclusion10 decks24 decks
16%synergy
Grim Affliction
38%inclusion9 decks24 decks
36%synergy
Defile
33%inclusion8 decks24 decks
-3%synergy
Rat Out
25%inclusion6 decks24 decks
24%synergy
Anoint with Affliction
25%inclusion6 decks24 decks
24%synergy
Deadly Dispute
25%inclusion6 decks24 decks
-1%synergy
Tainted Strike
25%inclusion6 decks24 decks
22%synergy
Deadly Rollick
21%inclusion5 decks24 decks
-4%synergy
Malakir Rebirth
21%inclusion5 decks24 decks
-2%synergy
Corrupted Conviction
21%inclusion5 decks24 decks
8%synergy
Withering Torment
21%inclusion5 decks24 decks
-11%synergy
Hagra Mauling
17%inclusion4 decks24 decks
12%synergy
Sheoldred's Edict
17%inclusion4 decks24 decks
2%synergy
Culling the Weak
17%inclusion4 decks24 decks
1%synergy
Extinguish the Light
17%inclusion4 decks24 decks
17%synergy
Infernal Grasp
17%inclusion4 decks24 decks
-9%synergy
Tragic Slip
17%inclusion4 decks24 decks
-3%synergy
Unbury
13%inclusion2 decks15 decks
13%synergy
Fell the Profane
13%inclusion3 decks24 decks
-6%synergy
Virulent Wound
13%inclusion3 decks24 decks
12%synergy
Murder
13%inclusion3 decks24 decks
2%synergy
Sudden Spoiling
13%inclusion3 decks24 decks
4%synergy
Feign Death
13%inclusion3 decks24 decks
4%synergy
Force of Despair
8.3%inclusion2 decks24 decks
1%synergy
Snuff Out
8.3%inclusion2 decks24 decks
-5%synergy
Not Dead After All
8.3%inclusion2 decks24 decks
-3%synergy
Doom Blade
8.3%inclusion2 decks24 decks
1%synergy
Supernatural Stamina
8.3%inclusion2 decks24 decks
1%synergy
Altar's Reap
8.3%inclusion2 decks24 decks
6%synergy
Drag to the Underworld
8.3%inclusion2 decks24 decks
7%synergy
Raise the Draugr
8.3%inclusion2 decks24 decks
7%synergy
Undying Malice
8.3%inclusion2 decks24 decks
-2%synergy
Curtains' Call
8.3%inclusion2 decks24 decks
7%synergy
Sorceries
Phyresis Outbreak
54%inclusion13 decks24 decks
52%synergy
Patriarch's Bidding
46%inclusion11 decks24 decks
42%synergy
Crippling Fear
46%inclusion11 decks24 decks
43%synergy
Revenge of the Rats
42%inclusion10 decks24 decks
39%synergy
Feed the Swarm
38%inclusion9 decks24 decks
-13%synergy
Sign in Blood
38%inclusion9 decks24 decks
2%synergy
Night's Whisper
33%inclusion8 decks24 decks
9%synergy
Vat Emergence
29%inclusion7 decks24 decks
28%synergy
Feed the Infection
29%inclusion7 decks24 decks
29%synergy
Bloodline Bidding
27%inclusion4 decks15 decks
22%synergy
Spread the Sickness
21%inclusion5 decks24 decks
20%synergy
Echoing Return
21%inclusion5 decks24 decks
18%synergy
Read the Bones
21%inclusion5 decks24 decks
4%synergy
Kindred Dominance
21%inclusion5 decks24 decks
16%synergy
Bubbling Muck
17%inclusion4 decks24 decks
1%synergy
Toxic Deluge
17%inclusion4 decks24 decks
-20%synergy
Damnation
17%inclusion4 decks24 decks
-4%synergy
Diabolic Intent
13%inclusion3 decks24 decks
-2%synergy
Unearth
13%inclusion3 decks24 decks
4%synergy
Swarmyard Massacre
13%inclusion3 decks24 decks
10%synergy
Mutilate
13%inclusion3 decks24 decks
-5%synergy
Caress of Phyrexia
13%inclusion3 decks24 decks
12%synergy
Reanimate
13%inclusion3 decks24 decks
-27%synergy
Geth's Summons
13%inclusion3 decks24 decks
12%synergy
Black Sun's Zenith
8.3%inclusion2 decks24 decks
3%synergy
Diabolic Tutor
8.3%inclusion2 decks24 decks
-6%synergy
Profane Tutor
8.3%inclusion2 decks24 decks
4%synergy
Psychic Whorl
8.3%inclusion2 decks24 decks
8%synergy
Predators' Hour
8.3%inclusion2 decks24 decks
7%synergy
Decree of Pain
8.3%inclusion2 decks24 decks
3%synergy
Annihilating Glare
8.3%inclusion2 decks24 decks
7%synergy
Insatiable Avarice
8.3%inclusion2 decks24 decks
-3%synergy
Plague of Vermin
8.3%inclusion2 decks24 decks
6%synergy
Embrace Oblivion
5.0%inclusion1 decks20 decks
4%synergy
Utility Artifacts
Skullclamp
54%inclusion13 decks24 decks
32%synergy
Bontu's Monument
54%inclusion13 decks24 decks
26%synergy
Jet Medallion
50%inclusion12 decks24 decks
-12%synergy
Contagion Clasp
25%inclusion6 decks24 decks
23%synergy
Icon of Ancestry
21%inclusion5 decks24 decks
20%synergy
Vanquisher's Banner
21%inclusion5 decks24 decks
17%synergy
Thrumming Stone
21%inclusion5 decks24 decks
17%synergy
Wayfarer's Bauble
17%inclusion4 decks24 decks
1%synergy
Expedition Map
17%inclusion4 decks24 decks
5%synergy
Ashnod's Altar
13%inclusion3 decks24 decks
-7%synergy
Blade of Selves
13%inclusion3 decks24 decks
11%synergy
Swiftfoot Boots
13%inclusion3 decks24 decks
-19%synergy
Lightning Greaves
13%inclusion3 decks24 decks
-21%synergy
Grafted Exoskeleton
13%inclusion3 decks24 decks
11%synergy
The Darkness Crystal
10%inclusion2 decks21 decks
-10%synergy
Vat of Rebirth
8.3%inclusion2 decks24 decks
5%synergy
Contagion Engine
8.3%inclusion2 decks24 decks
6%synergy
Aetherflux Reservoir
8.3%inclusion2 decks24 decks
-1%synergy
Coat of Arms
8.3%inclusion2 decks24 decks
6%synergy
Banner of Kinship
8.3%inclusion2 decks24 decks
6%synergy
Sword of Hearth and Home
8.3%inclusion2 decks24 decks
7%synergy
Eldrazi Monument
8.3%inclusion2 decks24 decks
7%synergy
Chronicle of Victory
6.7%inclusion1 decks15 decks
4%synergy
Enchantments
Necrogen Communion
46%inclusion11 decks24 decks
44%synergy
Cover of Darkness
42%inclusion10 decks24 decks
39%synergy
Phyrexian Arena
38%inclusion9 decks24 decks
-2%synergy
Phyresis
21%inclusion5 decks24 decks
19%synergy
Black Market Connections
21%inclusion5 decks24 decks
-3%synergy
Oversold Cemetery
17%inclusion4 decks24 decks
11%synergy
Grave Pact
13%inclusion3 decks24 decks
-7%synergy
Dark Prophecy
13%inclusion3 decks24 decks
9%synergy
Bad Moon
13%inclusion3 decks24 decks
9%synergy
Greed
8.3%inclusion2 decks24 decks
1%synergy
Glistening Oil
8.3%inclusion2 decks24 decks
8%synergy
Phyrexian Reclamation
8.3%inclusion2 decks24 decks
-2%synergy
Tribute to Horobi
8.3%inclusion2 decks24 decks
7%synergy
Carnival of Souls
8.3%inclusion2 decks24 decks
7%synergy
Intimidation
8.3%inclusion2 decks24 decks
8%synergy
Oubliette
8.3%inclusion2 decks24 decks
5%synergy
Lord Skitter's Blessing
8.3%inclusion2 decks24 decks
8%synergy
Planeswalkers
Vraska, Betrayal's Sting
33%inclusion8 decks24 decks
31%synergy
Liliana of the Dark Realms
8.3%inclusion2 decks24 decks
-6%synergy
Utility Lands
Cabal Coffers
71%inclusion17 decks24 decks
16%synergy
Bojuka Bog
67%inclusion16 decks24 decks
20%synergy
Swarmyard
63%inclusion15 decks24 decks
57%synergy
Witch's Cottage
46%inclusion11 decks24 decks
21%synergy
Mudflat Village
46%inclusion11 decks24 decks
43%synergy
Rogue's Passage
46%inclusion11 decks24 decks
27%synergy
Cabal Stronghold
38%inclusion9 decks24 decks
3%synergy
Mortuary Mire
29%inclusion7 decks24 decks
16%synergy
Nykthos, Shrine to Nyx
29%inclusion7 decks24 decks
-1%synergy
Reliquary Tower
25%inclusion6 decks24 decks
-5%synergy
Three Tree City
25%inclusion6 decks24 decks
20%synergy
Urborg, Tomb of Yawgmoth
25%inclusion6 decks24 decks
-13%synergy
Barren Moor
21%inclusion5 decks24 decks
11%synergy
War Room
21%inclusion5 decks24 decks
5%synergy
Crypt of Agadeem
17%inclusion4 decks24 decks
5%synergy
Inkmoth Nexus
13%inclusion3 decks24 decks
12%synergy
Takenuma, Abandoned Mire
13%inclusion3 decks24 decks
-3%synergy
Castle Locthwain
13%inclusion3 decks24 decks
-5%synergy
Access Tunnel
13%inclusion3 decks24 decks
9%synergy
Phyrexian Tower
8.3%inclusion2 decks24 decks
-17%synergy
Desert of the Glorified
8.3%inclusion2 decks24 decks
6%synergy
Spymaster's Vault
8.3%inclusion2 decks24 decks
-1%synergy
The Dross Pits
8.3%inclusion2 decks24 decks
7%synergy
Minas Morgul, Dark Fortress
8.3%inclusion2 decks24 decks
5%synergy
Polluted Mire
8.3%inclusion2 decks24 decks
5%synergy
Peat Bog
8.3%inclusion2 decks24 decks
6%synergy
Secret Tunnel
5.6%inclusion1 decks18 decks
4%synergy
Susur Secundi, Void Altar
5.3%inclusion1 decks19 decks
-2%synergy
Mana Artifacts
Sol Ring
83%inclusion20 decks24 decks
-3%synergy
Arcane Signet
50%inclusion12 decks24 decks
-12%synergy
Glistening Sphere
50%inclusion12 decks24 decks
49%synergy
Staff of Compleation
17%inclusion4 decks24 decks
15%synergy
Charcoal Diamond
17%inclusion4 decks24 decks
-6%synergy
Patchwork Banner
17%inclusion4 decks24 decks
12%synergy
Heraldic Banner
13%inclusion3 decks24 decks
7%synergy
Phyrexian Atlas
13%inclusion3 decks24 decks
12%synergy
The Soul Stone
11%inclusion2 decks19 decks
-4%synergy
Thought Vessel
8.3%inclusion2 decks24 decks
-17%synergy
Worn Powerstone
8.3%inclusion2 decks24 decks
4%synergy
Mind Stone
8.3%inclusion2 decks24 decks
-21%synergy
Sceptre of Eternal Glory
8.3%inclusion2 decks24 decks
0%synergy
Firdoch Core
6.7%inclusion1 decks15 decks
6%synergy
White Lotus Tile
5.6%inclusion1 decks18 decks
5%synergy
Lands
Swamp
100%inclusion24 decks24 decks
5%synergy
Path of Ancestry
42%inclusion10 decks24 decks
37%synergy
Cavern of Souls
21%inclusion5 decks24 decks
14%synergy
Malakir Rebirth
21%inclusion5 decks24 decks
-2%synergy
Hagra Mauling
17%inclusion4 decks24 decks
12%synergy
Command Tower
17%inclusion4 decks24 decks
11%synergy
Evolving Wilds
17%inclusion4 decks24 decks
13%synergy
Fell the Profane
13%inclusion3 decks24 decks
-6%synergy
Terramorphic Expanse
13%inclusion3 decks24 decks
10%synergy
Myriad Landscape
13%inclusion3 decks24 decks
-13%synergy
Mirrex
13%inclusion3 decks24 decks
12%synergy
Ash Barrens
8.3%inclusion2 decks24 decks
7%synergy
Daily Bugle Building
5.6%inclusion1 decks18 decks
5%synergy
Vibrant Cityscape
5.6%inclusion1 decks18 decks
5%synergy
Command Bridge
5.0%inclusion1 decks20 decks
5%synergy
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