Karumonix, the Rat King (Commander) - Upgraded

Karumonix, the Rat King
Rank #400
327decks
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.
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Marrow-Gnawer
84%inclusion276 decks327 decks
81%synergy
Piper of the Swarm
82%inclusion267 decks327 decks
75%synergy
Blightbelly Rat
76%inclusion247 decks327 decks
72%synergy
Pack Rat
74%inclusion241 decks327 decks
68%synergy
Ogre Slumlord
75%inclusion246 decks327 decks
65%synergy
Ichor Rats
68%inclusion223 decks327 decks
65%synergy
Lord Skitter, Sewer King
69%inclusion226 decks327 decks
61%synergy
Swarmyard
65%inclusion211 decks327 decks
59%synergy
Infectious Inquiry
61%inclusion198 decks327 decks
58%synergy
Vraska's Fall
56%inclusion184 decks327 decks
53%synergy
Top Cards
Dark Ritual
68%inclusion223 decks327 decks
1%synergy
Bontu's Monument
63%inclusion207 decks327 decks
35%synergy
Jet Medallion
62%inclusion202 decks327 decks
-0%synergy
Rat Colony
56%inclusion184 decks327 decks
51%synergy
Crypt Rats
55%inclusion181 decks327 decks
51%synergy
Typhoid Rats
55%inclusion181 decks327 decks
52%synergy
Drown in Ichor
53%inclusion174 decks327 decks
50%synergy
Septic Rats
52%inclusion169 decks327 decks
50%synergy
Rancid Rats
51%inclusion168 decks327 decks
49%synergy
Tangled Colony
51%inclusion166 decks327 decks
48%synergy
Game Changers
Demonic Tutor
35%inclusion116 decks327 decks
8%synergy
Bolas's Citadel
26%inclusion86 decks327 decks
-2%synergy
Vampiric Tutor
26%inclusion84 decks327 decks
5%synergy
Creatures
Ashcoat of the Shadow Swarm
50%inclusion165 decks327 decks
47%synergy
Lord Skitter's Butcher
50%inclusion162 decks327 decks
46%synergy
Ratcatcher
46%inclusion150 decks327 decks
43%synergy
Persistent Marshstalker
42%inclusion137 decks327 decks
39%synergy
Voracious Vermin
42%inclusion137 decks327 decks
39%synergy
Gnat Miser
42%inclusion136 decks327 decks
39%synergy
Stronghold Rats
38%inclusion125 decks327 decks
35%synergy
Burglar Rat
37%inclusion121 decks327 decks
26%synergy
Ink-Eyes, Servant of Oni
35%inclusion113 decks327 decks
31%synergy
Swarm of Rats
32%inclusion105 decks327 decks
30%synergy
Wave of Rats
32%inclusion104 decks327 decks
30%synergy
Chittering Skitterling
31%inclusion103 decks327 decks
31%synergy
Rat King, Pale Piper
29%inclusion42 decks146 decks
25%synergy
Nashi, Moon Sage's Scion
27%inclusion87 decks327 decks
23%synergy
Ayara, First of Locthwain
26%inclusion85 decks327 decks
1%synergy
Changeling Outcast
26%inclusion85 decks327 decks
21%synergy
Rat King, Verminister
25%inclusion41 decks163 decks
22%synergy
Throat Slitter
25%inclusion82 decks327 decks
23%synergy
Chittering Witch
25%inclusion82 decks327 decks
21%synergy
Ruin Rat
25%inclusion82 decks327 decks
24%synergy
Species Specialist
25%inclusion81 decks327 decks
21%synergy
Pestilence Rats
25%inclusion81 decks327 decks
23%synergy
Crypt Ghast
24%inclusion78 decks327 decks
-23%synergy
Valley Rotcaller
24%inclusion77 decks327 decks
21%synergy
Nezumi Prowler
22%inclusion73 decks327 decks
21%synergy
Nezumi Informant
21%inclusion70 decks327 decks
15%synergy
Undercity Dire Rat
21%inclusion59 decks279 decks
19%synergy
Engine Rat
21%inclusion66 decks319 decks
19%synergy
Twisted Sewer-Witch
20%inclusion67 decks327 decks
19%synergy
Locust Miser
20%inclusion66 decks327 decks
19%synergy
Relentless Rats
19%inclusion63 decks327 decks
18%synergy
Gray Merchant of Asphodel
19%inclusion63 decks327 decks
-31%synergy
Nezumi Cutthroat
18%inclusion60 decks327 decks
18%synergy
Razortooth Rats
17%inclusion56 decks327 decks
17%synergy
Gnawing Vermin
17%inclusion55 decks327 decks
15%synergy
Drainpipe Vermin
15%inclusion49 decks327 decks
14%synergy
Nezumi Graverobber
15%inclusion48 decks327 decks
13%synergy
Ravenous Rats
13%inclusion41 decks327 decks
11%synergy
Refurbished Familiar
12%inclusion39 decks327 decks
10%synergy
Old Flitterfang
12%inclusion39 decks327 decks
11%synergy
Rotting Rats
11%inclusion37 decks327 decks
8%synergy
Yawgmoth, Thran Physician
11%inclusion35 decks327 decks
1%synergy
Sinuous Vermin
10%inclusion34 decks327 decks
10%synergy
Okiba-Gang Shinobi
10%inclusion32 decks327 decks
9%synergy
Mukotai Ambusher
9.5%inclusion31 decks327 decks
9%synergy
Filth
9.2%inclusion30 decks327 decks
7%synergy
Ruthless Radrat
8.6%inclusion28 decks327 decks
8%synergy
Nezumi Bladeblesser
8.6%inclusion28 decks327 decks
8%synergy
Adaptive Automaton
8.6%inclusion28 decks327 decks
8%synergy
Skullsnatcher
8.6%inclusion28 decks327 decks
8%synergy
Instants
Whisper of the Dross
43%inclusion142 decks327 decks
41%synergy
Defile
31%inclusion102 decks327 decks
-4%synergy
Village Rites
30%inclusion98 decks327 decks
4%synergy
Go for the Throat
29%inclusion94 decks327 decks
6%synergy
Grim Affliction
26%inclusion84 decks327 decks
24%synergy
Tainted Strike
24%inclusion78 decks327 decks
21%synergy
Deadly Dispute
23%inclusion74 decks327 decks
-4%synergy
Rat Out
22%inclusion71 decks327 decks
20%synergy
Deadly Rollick
20%inclusion66 decks327 decks
-5%synergy
Infernal Grasp
20%inclusion64 decks327 decks
-6%synergy
Withering Torment
19%inclusion61 decks324 decks
-13%synergy
Murder
16%inclusion52 decks327 decks
6%synergy
Corrupted Conviction
15%inclusion50 decks327 decks
3%synergy
Tragic Slip
15%inclusion50 decks327 decks
-4%synergy
Culling the Weak
14%inclusion47 decks327 decks
-3%synergy
Malakir Rebirth
12%inclusion40 decks327 decks
-11%synergy
Fell the Profane
12%inclusion38 decks327 decks
-8%synergy
Anoint with Affliction
11%inclusion36 decks327 decks
10%synergy
Cabal Ritual
11%inclusion35 decks327 decks
-8%synergy
Hero's Downfall
10%inclusion34 decks327 decks
4%synergy
Doom Blade
9.5%inclusion31 decks327 decks
2%synergy
Consuming Corruption
9.2%inclusion30 decks327 decks
-6%synergy
Foul-Tongue Shriek
8.3%inclusion27 decks327 decks
6%synergy
Virulent Wound
7.3%inclusion24 decks327 decks
7%synergy
Sudden Spoiling
7.3%inclusion24 decks327 decks
-1%synergy
Raise the Draugr
7.3%inclusion24 decks327 decks
6%synergy
Sheoldred's Edict
6.4%inclusion21 decks327 decks
-8%synergy
Imp's Mischief
6.4%inclusion21 decks327 decks
-19%synergy
Gravepurge
5.8%inclusion19 decks327 decks
4%synergy
Darkness
5.2%inclusion17 decks327 decks
-5%synergy
Baleful Mastery
5.2%inclusion17 decks327 decks
-3%synergy
Sorceries
Phyresis Outbreak
41%inclusion135 decks327 decks
40%synergy
Feed the Swarm
37%inclusion121 decks327 decks
-13%synergy
Revenge of the Rats
34%inclusion110 decks324 decks
31%synergy
Kindred Dominance
32%inclusion104 decks327 decks
27%synergy
Crippling Fear
25%inclusion82 decks327 decks
22%synergy
Sign in Blood
24%inclusion78 decks327 decks
-11%synergy
Patriarch's Bidding
23%inclusion75 decks327 decks
19%synergy
Bloodline Bidding
20%inclusion34 decks173 decks
15%synergy
Diabolic Tutor
19%inclusion63 decks327 decks
5%synergy
Vat Emergence
19%inclusion62 decks327 decks
18%synergy
Swarmyard Massacre
19%inclusion62 decks327 decks
17%synergy
Diabolic Intent
18%inclusion60 decks327 decks
3%synergy
Night's Whisper
18%inclusion59 decks327 decks
-7%synergy
Spread the Sickness
15%inclusion50 decks327 decks
15%synergy
Toxic Deluge
15%inclusion49 decks327 decks
-22%synergy
Echoing Return
15%inclusion48 decks327 decks
12%synergy
Damnation
13%inclusion43 decks327 decks
-7%synergy
Plague of Vermin
12%inclusion38 decks327 decks
9%synergy
Reanimate
11%inclusion37 decks327 decks
-29%synergy
Read the Bones
11%inclusion36 decks327 decks
-5%synergy
Victimize
11%inclusion35 decks327 decks
-17%synergy
Grim Tutor
11%inclusion35 decks327 decks
-1%synergy
Unearth
10%inclusion33 decks327 decks
1%synergy
Bubbling Muck
10%inclusion32 decks327 decks
-6%synergy
Feed the Infection
10%inclusion32 decks327 decks
9%synergy
Geth's Summons
9.5%inclusion31 decks327 decks
9%synergy
Gruesome Fate
8.3%inclusion27 decks327 decks
6%synergy
Mutilate
7.6%inclusion25 decks327 decks
-9%synergy
Caress of Phyrexia
7.0%inclusion23 decks327 decks
6%synergy
Pact of the Serpent
6.7%inclusion22 decks327 decks
5%synergy
Living Death
6.4%inclusion21 decks327 decks
-4%synergy
Haunting Voyage
6.1%inclusion20 decks327 decks
5%synergy
Profane Tutor
6.1%inclusion20 decks327 decks
2%synergy
In Garruk's Wake
6.1%inclusion20 decks327 decks
2%synergy
Blasphemous Edict
5.6%inclusion18 decks324 decks
-11%synergy
Exsanguinate
5.5%inclusion18 decks327 decks
-19%synergy
Lab Rats
5.5%inclusion18 decks327 decks
5%synergy
Insatiable Avarice
5.5%inclusion18 decks327 decks
-6%synergy
Fell
5.2%inclusion17 decks327 decks
2%synergy
Utility Artifacts
Herald's Horn
47%inclusion155 decks327 decks
42%synergy
Skullclamp
36%inclusion119 decks327 decks
14%synergy
Vanquisher's Banner
28%inclusion92 decks327 decks
24%synergy
Thrumming Stone
28%inclusion90 decks327 decks
23%synergy
Contagion Clasp
22%inclusion72 decks327 decks
20%synergy
Coat of Arms
18%inclusion59 decks327 decks
15%synergy
Swiftfoot Boots
17%inclusion57 decks327 decks
-14%synergy
Lightning Greaves
17%inclusion54 decks327 decks
-17%synergy
Door of Destinies
16%inclusion52 decks327 decks
14%synergy
Contagion Engine
14%inclusion45 decks327 decks
12%synergy
Whip of Erebos
13%inclusion44 decks327 decks
2%synergy
Chronicle of Victory
13%inclusion22 decks174 decks
10%synergy
Icon of Ancestry
11%inclusion36 decks327 decks
10%synergy
Banner of Kinship
10%inclusion32 decks324 decks
8%synergy
Ashnod's Altar
10%inclusion32 decks327 decks
-10%synergy
The Darkness Crystal
8.6%inclusion24 decks279 decks
-12%synergy
Thornbite Staff
8.3%inclusion27 decks327 decks
5%synergy
Grafted Exoskeleton
8.3%inclusion27 decks327 decks
7%synergy
Wayfarer's Bauble
6.4%inclusion21 decks327 decks
-8%synergy
Sword of Truth and Justice
6.4%inclusion21 decks327 decks
6%synergy
Eldrazi Monument
6.1%inclusion20 decks327 decks
4%synergy
Urza's Incubator
5.8%inclusion19 decks327 decks
4%synergy
Expedition Map
5.5%inclusion18 decks327 decks
-6%synergy
Gathering Stone
5.2%inclusion9 decks173 decks
4%synergy
Sword of the Squeak
5.2%inclusion17 decks327 decks
5%synergy
Enchantments
Cover of Darkness
41%inclusion134 decks327 decks
38%synergy
Phyrexian Arena
36%inclusion119 decks327 decks
-3%synergy
Necrogen Communion
31%inclusion102 decks327 decks
29%synergy
Grave Pact
20%inclusion67 decks327 decks
1%synergy
Black Market
20%inclusion65 decks327 decks
-1%synergy
Phyresis
19%inclusion61 decks327 decks
17%synergy
Bad Moon
17%inclusion57 decks327 decks
14%synergy
Haunted One
17%inclusion56 decks327 decks
15%synergy
Black Market Connections
16%inclusion53 decks327 decks
-8%synergy
Oversold Cemetery
14%inclusion47 decks327 decks
9%synergy
Vampiric Rites
8.6%inclusion28 decks327 decks
3%synergy
Dictate of Erebos
8.3%inclusion27 decks327 decks
-3%synergy
Lord Skitter's Blessing
8.0%inclusion26 decks327 decks
7%synergy
Tribute to Horobi
7.6%inclusion25 decks327 decks
7%synergy
The Meathook Massacre
7.0%inclusion23 decks327 decks
-10%synergy
Intimidation
7.0%inclusion23 decks327 decks
6%synergy
Phyrexian Reclamation
6.7%inclusion22 decks327 decks
-3%synergy
Glistening Oil
5.2%inclusion17 decks327 decks
5%synergy
Dark Prophecy
5.2%inclusion17 decks327 decks
1%synergy
Planeswalkers
Vraska, Betrayal's Sting
36%inclusion118 decks327 decks
34%synergy
Liliana of the Dark Realms
12%inclusion40 decks327 decks
-2%synergy
Utility Lands
Cabal Coffers
55%inclusion179 decks327 decks
-0%synergy
Karn's Bastion
50%inclusion162 decks327 decks
46%synergy
Bojuka Bog
48%inclusion157 decks327 decks
1%synergy
Mudflat Village
43%inclusion142 decks327 decks
41%synergy
Rogue's Passage
39%inclusion126 decks327 decks
19%synergy
Urborg, Tomb of Yawgmoth
33%inclusion108 decks327 decks
-5%synergy
Witch's Cottage
31%inclusion101 decks327 decks
6%synergy
Three Tree City
31%inclusion101 decks327 decks
26%synergy
Cabal Stronghold
29%inclusion94 decks327 decks
-6%synergy
Reliquary Tower
23%inclusion76 decks327 decks
-7%synergy
Nykthos, Shrine to Nyx
23%inclusion76 decks327 decks
-7%synergy
Mortuary Mire
22%inclusion72 decks327 decks
9%synergy
Phyrexian Tower
21%inclusion70 decks327 decks
-4%synergy
Access Tunnel
14%inclusion46 decks327 decks
11%synergy
Castle Locthwain
14%inclusion45 decks327 decks
-3%synergy
Crypt of Agadeem
13%inclusion42 decks327 decks
1%synergy
War Room
12%inclusion40 decks327 decks
-4%synergy
Temple of the False God
10%inclusion33 decks327 decks
2%synergy
Shizo, Death's Storehouse
10%inclusion32 decks327 decks
-0%synergy
Secret Tunnel
8.9%inclusion18 decks203 decks
8%synergy
Takenuma, Abandoned Mire
7.6%inclusion25 decks327 decks
-8%synergy
Barren Moor
7.3%inclusion24 decks327 decks
-2%synergy
Minas Morgul, Dark Fortress
6.1%inclusion20 decks327 decks
3%synergy
The Black Gate
5.2%inclusion17 decks327 decks
2%synergy
Mana Artifacts
Sol Ring
83%inclusion270 decks327 decks
-3%synergy
Arcane Signet
48%inclusion156 decks327 decks
-14%synergy
Glistening Sphere
33%inclusion107 decks327 decks
32%synergy
Patchwork Banner
25%inclusion83 decks327 decks
21%synergy
Staff of Compleation
18%inclusion60 decks327 decks
17%synergy
Charcoal Diamond
16%inclusion51 decks327 decks
-6%synergy
Heraldic Banner
15%inclusion50 decks327 decks
10%synergy
Mind Stone
14%inclusion45 decks327 decks
-14%synergy
Phyrexian Atlas
7.6%inclusion25 decks327 decks
7%synergy
The Soul Stone
7.6%inclusion19 decks250 decks
-8%synergy
Caged Sun
7.3%inclusion24 decks327 decks
-3%synergy
Thought Vessel
7.0%inclusion23 decks327 decks
-18%synergy
Gauntlet of Power
6.1%inclusion20 decks327 decks
3%synergy
Throne of Eldraine
5.5%inclusion18 decks327 decks
-4%synergy
Lands
Swamp
98%inclusion321 decks327 decks
3%synergy
Path of Ancestry
34%inclusion111 decks327 decks
29%synergy
Cavern of Souls
20%inclusion67 decks327 decks
14%synergy
Myriad Landscape
15%inclusion48 decks327 decks
-10%synergy
Malakir Rebirth
12%inclusion40 decks327 decks
-11%synergy
Fell the Profane
12%inclusion38 decks327 decks
-8%synergy
Command Tower
11%inclusion35 decks327 decks
5%synergy
Big Apple, 3 a.m.
7.5%inclusion11 decks146 decks
6%synergy
Evolving Wilds
6.4%inclusion21 decks327 decks
3%synergy
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