Karumonix, the Rat King (Commander) - Upgraded

Karumonix, the Rat King
Rank #384
281decks
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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Sorceries
Utility Artifacts
Enchantments
Planeswalkers
Utility Lands
Mana Artifacts
Lands
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Rat King, Pale Piper
28%inclusion24 decks86 decks
23%synergy
Rat King, Verminister
23%inclusion24 decks105 decks
20%synergy
Big Apple, 3 a.m.
7.0%inclusion6 decks86 decks
5%synergy
Shredder's Technique
5.7%inclusion5 decks87 decks
2%synergy
Tunnel Rats
3.8%inclusion3 decks78 decks
3%synergy
High Synergy Cards
Marrow-Gnawer
84%inclusion237 decks281 decks
81%synergy
Piper of the Swarm
81%inclusion228 decks281 decks
74%synergy
Blightbelly Rat
76%inclusion213 decks281 decks
72%synergy
Pack Rat
73%inclusion206 decks281 decks
67%synergy
Ogre Slumlord
76%inclusion214 decks281 decks
66%synergy
Ichor Rats
69%inclusion194 decks281 decks
66%synergy
Lord Skitter, Sewer King
69%inclusion195 decks281 decks
61%synergy
Swarmyard
65%inclusion182 decks281 decks
59%synergy
Infectious Inquiry
62%inclusion173 decks281 decks
59%synergy
Vraska's Fall
57%inclusion161 decks281 decks
54%synergy
Top Cards
Dark Ritual
67%inclusion189 decks281 decks
1%synergy
Bontu's Monument
63%inclusion178 decks281 decks
35%synergy
Jet Medallion
62%inclusion174 decks281 decks
0%synergy
Drown in Ichor
56%inclusion156 decks281 decks
52%synergy
Rat Colony
55%inclusion155 decks281 decks
50%synergy
Typhoid Rats
55%inclusion154 decks281 decks
51%synergy
Crypt Rats
54%inclusion152 decks281 decks
49%synergy
Rancid Rats
52%inclusion146 decks281 decks
49%synergy
Tangled Colony
51%inclusion143 decks281 decks
48%synergy
Septic Rats
51%inclusion143 decks281 decks
49%synergy
Game Changers
Demonic Tutor
32%inclusion89 decks281 decks
4%synergy
Bolas's Citadel
28%inclusion80 decks281 decks
0%synergy
Vampiric Tutor
24%inclusion67 decks281 decks
3%synergy
Necropotence
5.3%inclusion15 decks281 decks
-9%synergy
Creatures
Lord Skitter's Butcher
50%inclusion140 decks281 decks
47%synergy
Ashcoat of the Shadow Swarm
48%inclusion134 decks281 decks
44%synergy
Ratcatcher
46%inclusion129 decks281 decks
42%synergy
Gnat Miser
43%inclusion122 decks281 decks
41%synergy
Voracious Vermin
43%inclusion120 decks281 decks
40%synergy
Persistent Marshstalker
41%inclusion115 decks281 decks
38%synergy
Stronghold Rats
38%inclusion107 decks281 decks
34%synergy
Burglar Rat
37%inclusion103 decks281 decks
26%synergy
Ink-Eyes, Servant of Oni
33%inclusion94 decks281 decks
30%synergy
Chittering Skitterling
32%inclusion91 decks281 decks
31%synergy
Wave of Rats
31%inclusion87 decks281 decks
29%synergy
Swarm of Rats
31%inclusion86 decks281 decks
28%synergy
Changeling Outcast
27%inclusion77 decks281 decks
22%synergy
Nashi, Moon Sage's Scion
27%inclusion75 decks281 decks
23%synergy
Ayara, First of Locthwain
26%inclusion73 decks281 decks
0%synergy
Species Specialist
25%inclusion71 decks281 decks
22%synergy
Throat Slitter
25%inclusion71 decks281 decks
23%synergy
Chittering Witch
25%inclusion71 decks281 decks
21%synergy
Ruin Rat
24%inclusion68 decks281 decks
23%synergy
Crypt Ghast
24%inclusion67 decks281 decks
-24%synergy
Pestilence Rats
24%inclusion67 decks281 decks
22%synergy
Valley Rotcaller
23%inclusion66 decks281 decks
21%synergy
Nezumi Prowler
23%inclusion66 decks281 decks
22%synergy
Undercity Dire Rat
22%inclusion51 decks230 decks
20%synergy
Nezumi Informant
22%inclusion62 decks281 decks
15%synergy
Gray Merchant of Asphodel
20%inclusion56 decks281 decks
-31%synergy
Locust Miser
20%inclusion55 decks281 decks
18%synergy
Twisted Sewer-Witch
20%inclusion55 decks281 decks
18%synergy
Engine Rat
18%inclusion50 decks273 decks
17%synergy
Gnawing Vermin
18%inclusion51 decks281 decks
17%synergy
Relentless Rats
18%inclusion50 decks281 decks
16%synergy
Nezumi Cutthroat
17%inclusion47 decks281 decks
16%synergy
Razortooth Rats
16%inclusion46 decks281 decks
16%synergy
Nezumi Graverobber
16%inclusion44 decks281 decks
14%synergy
Drainpipe Vermin
14%inclusion39 decks281 decks
13%synergy
Ravenous Rats
12%inclusion35 decks281 decks
11%synergy
Yawgmoth, Thran Physician
12%inclusion34 decks281 decks
2%synergy
Refurbished Familiar
12%inclusion33 decks281 decks
10%synergy
Old Flitterfang
12%inclusion33 decks281 decks
10%synergy
Rotting Rats
10%inclusion29 decks281 decks
7%synergy
Adaptive Automaton
10%inclusion28 decks281 decks
9%synergy
Filth
10%inclusion27 decks281 decks
7%synergy
Sinuous Vermin
9.3%inclusion26 decks281 decks
9%synergy
Mukotai Ambusher
9.3%inclusion26 decks281 decks
8%synergy
Okiba-Gang Shinobi
9.3%inclusion26 decks281 decks
8%synergy
Bog Rats
8.9%inclusion25 decks281 decks
8%synergy
Skullsnatcher
8.9%inclusion25 decks281 decks
8%synergy
Nezumi Bladeblesser
8.5%inclusion24 decks281 decks
8%synergy
Ruthless Radrat
7.8%inclusion22 decks281 decks
7%synergy
Chittering Rats
7.5%inclusion21 decks281 decks
7%synergy
Instants
Whisper of the Dross
42%inclusion119 decks281 decks
40%synergy
Village Rites
31%inclusion88 decks281 decks
6%synergy
Defile
31%inclusion86 decks281 decks
-6%synergy
Go for the Throat
30%inclusion85 decks281 decks
7%synergy
Grim Affliction
25%inclusion71 decks281 decks
23%synergy
Tainted Strike
24%inclusion68 decks281 decks
21%synergy
Deadly Dispute
23%inclusion65 decks281 decks
-3%synergy
Rat Out
21%inclusion59 decks281 decks
20%synergy
Deadly Rollick
20%inclusion57 decks281 decks
-4%synergy
Withering Torment
19%inclusion53 decks278 decks
-12%synergy
Infernal Grasp
18%inclusion50 decks281 decks
-7%synergy
Murder
17%inclusion47 decks281 decks
7%synergy
Corrupted Conviction
17%inclusion47 decks281 decks
4%synergy
Tragic Slip
16%inclusion45 decks281 decks
-4%synergy
Malakir Rebirth
13%inclusion37 decks281 decks
-10%synergy
Fell the Profane
12%inclusion33 decks281 decks
-7%synergy
Anoint with Affliction
12%inclusion33 decks281 decks
11%synergy
Cabal Ritual
11%inclusion32 decks281 decks
-7%synergy
Culling the Weak
11%inclusion31 decks281 decks
-5%synergy
Hero's Downfall
10%inclusion29 decks281 decks
4%synergy
Consuming Corruption
10%inclusion28 decks281 decks
-6%synergy
Doom Blade
9.3%inclusion26 decks281 decks
2%synergy
Foul-Tongue Shriek
8.5%inclusion24 decks281 decks
7%synergy
Sudden Spoiling
7.5%inclusion21 decks281 decks
-1%synergy
Raise the Draugr
7.1%inclusion20 decks281 decks
6%synergy
Virulent Wound
6.4%inclusion18 decks281 decks
6%synergy
Baleful Mastery
6.4%inclusion18 decks281 decks
-2%synergy
Sheoldred's Edict
6.0%inclusion17 decks281 decks
-9%synergy
Imp's Mischief
5.7%inclusion16 decks281 decks
-19%synergy
Gravepurge
5.7%inclusion16 decks281 decks
4%synergy
Sorceries
Phyresis Outbreak
42%inclusion117 decks281 decks
40%synergy
Feed the Swarm
37%inclusion103 decks281 decks
-14%synergy
Revenge of the Rats
34%inclusion95 decks278 decks
31%synergy
Kindred Dominance
33%inclusion93 decks281 decks
28%synergy
Crippling Fear
26%inclusion74 decks281 decks
23%synergy
Patriarch's Bidding
25%inclusion71 decks281 decks
21%synergy
Sign in Blood
25%inclusion71 decks281 decks
-10%synergy
Diabolic Tutor
21%inclusion59 decks281 decks
7%synergy
Bloodline Bidding
20%inclusion23 decks115 decks
15%synergy
Swarmyard Massacre
20%inclusion55 decks281 decks
17%synergy
Night's Whisper
19%inclusion54 decks281 decks
-5%synergy
Diabolic Intent
19%inclusion53 decks281 decks
4%synergy
Vat Emergence
19%inclusion52 decks281 decks
17%synergy
Echoing Return
16%inclusion46 decks281 decks
13%synergy
Toxic Deluge
15%inclusion42 decks281 decks
-22%synergy
Spread the Sickness
14%inclusion40 decks281 decks
14%synergy
Reanimate
13%inclusion37 decks281 decks
-27%synergy
Damnation
13%inclusion36 decks281 decks
-8%synergy
Read the Bones
12%inclusion34 decks281 decks
-5%synergy
Unearth
12%inclusion34 decks281 decks
3%synergy
Plague of Vermin
12%inclusion34 decks281 decks
10%synergy
Victimize
12%inclusion33 decks281 decks
-15%synergy
Grim Tutor
12%inclusion33 decks281 decks
0%synergy
Feed the Infection
10%inclusion27 decks281 decks
9%synergy
Bubbling Muck
8.9%inclusion25 decks281 decks
-7%synergy
Gruesome Fate
8.9%inclusion25 decks281 decks
7%synergy
Geth's Summons
8.9%inclusion25 decks281 decks
8%synergy
Mutilate
8.2%inclusion23 decks281 decks
-9%synergy
Profane Tutor
6.8%inclusion19 decks281 decks
2%synergy
Caress of Phyrexia
6.4%inclusion18 decks281 decks
6%synergy
Insatiable Avarice
6.4%inclusion18 decks281 decks
-5%synergy
Living Death
6.4%inclusion18 decks281 decks
-4%synergy
In Garruk's Wake
6.4%inclusion18 decks281 decks
2%synergy
Pact of the Serpent
6.0%inclusion17 decks281 decks
4%synergy
Haunting Voyage
5.7%inclusion16 decks281 decks
5%synergy
Fell
5.7%inclusion16 decks281 decks
2%synergy
Lab Rats
5.7%inclusion16 decks281 decks
5%synergy
Blasphemous Edict
5.0%inclusion14 decks278 decks
-12%synergy
Utility Artifacts
Herald's Horn
48%inclusion135 decks281 decks
42%synergy
Skullclamp
37%inclusion104 decks281 decks
15%synergy
Vanquisher's Banner
30%inclusion85 decks281 decks
26%synergy
Thrumming Stone
28%inclusion79 decks281 decks
24%synergy
Contagion Clasp
22%inclusion63 decks281 decks
20%synergy
Swiftfoot Boots
19%inclusion53 decks281 decks
-13%synergy
Coat of Arms
17%inclusion48 decks281 decks
14%synergy
Lightning Greaves
17%inclusion48 decks281 decks
-16%synergy
Door of Destinies
17%inclusion47 decks281 decks
15%synergy
Whip of Erebos
14%inclusion40 decks281 decks
3%synergy
Contagion Engine
14%inclusion38 decks281 decks
12%synergy
Icon of Ancestry
11%inclusion31 decks281 decks
10%synergy
Banner of Kinship
11%inclusion30 decks278 decks
9%synergy
Chronicle of Victory
10%inclusion12 decks116 decks
7%synergy
Grafted Exoskeleton
10%inclusion28 decks281 decks
9%synergy
Ashnod's Altar
9.3%inclusion26 decks281 decks
-11%synergy
The Darkness Crystal
7.4%inclusion17 decks230 decks
-13%synergy
Eldrazi Monument
7.1%inclusion20 decks281 decks
5%synergy
Wayfarer's Bauble
6.8%inclusion19 decks281 decks
-9%synergy
Expedition Map
6.8%inclusion19 decks281 decks
-5%synergy
Thornbite Staff
6.8%inclusion19 decks281 decks
4%synergy
Sword of Truth and Justice
6.8%inclusion19 decks281 decks
6%synergy
Sword of the Squeak
5.7%inclusion16 decks281 decks
5%synergy
Enchantments
Cover of Darkness
40%inclusion112 decks281 decks
37%synergy
Phyrexian Arena
38%inclusion107 decks281 decks
-2%synergy
Necrogen Communion
32%inclusion90 decks281 decks
30%synergy
Grave Pact
21%inclusion58 decks281 decks
1%synergy
Phyresis
19%inclusion53 decks281 decks
17%synergy
Black Market
19%inclusion52 decks281 decks
-3%synergy
Haunted One
17%inclusion49 decks281 decks
15%synergy
Bad Moon
17%inclusion48 decks281 decks
14%synergy
Black Market Connections
15%inclusion42 decks281 decks
-9%synergy
Oversold Cemetery
14%inclusion38 decks281 decks
8%synergy
Vampiric Rites
9.3%inclusion26 decks281 decks
3%synergy
Tribute to Horobi
8.2%inclusion23 decks281 decks
7%synergy
Phyrexian Reclamation
7.1%inclusion20 decks281 decks
-3%synergy
Dictate of Erebos
7.1%inclusion20 decks281 decks
-4%synergy
Lord Skitter's Blessing
7.1%inclusion20 decks281 decks
6%synergy
Intimidation
6.8%inclusion19 decks281 decks
6%synergy
The Meathook Massacre
5.7%inclusion16 decks281 decks
-12%synergy
Glistening Oil
5.3%inclusion15 decks281 decks
5%synergy
Planeswalkers
Vraska, Betrayal's Sting
35%inclusion97 decks281 decks
32%synergy
Liliana of the Dark Realms
12%inclusion34 decks281 decks
-2%synergy
Utility Lands
Cabal Coffers
54%inclusion152 decks281 decks
-1%synergy
Karn's Bastion
50%inclusion140 decks281 decks
46%synergy
Bojuka Bog
48%inclusion134 decks281 decks
1%synergy
Mudflat Village
44%inclusion124 decks281 decks
41%synergy
Rogue's Passage
38%inclusion108 decks281 decks
19%synergy
Urborg, Tomb of Yawgmoth
36%inclusion100 decks281 decks
-2%synergy
Three Tree City
30%inclusion85 decks281 decks
26%synergy
Cabal Stronghold
30%inclusion84 decks281 decks
-5%synergy
Witch's Cottage
29%inclusion81 decks281 decks
4%synergy
Nykthos, Shrine to Nyx
23%inclusion66 decks281 decks
-6%synergy
Reliquary Tower
23%inclusion64 decks281 decks
-8%synergy
Mortuary Mire
21%inclusion58 decks281 decks
7%synergy
Phyrexian Tower
21%inclusion58 decks281 decks
-5%synergy
Castle Locthwain
15%inclusion42 decks281 decks
-2%synergy
Access Tunnel
14%inclusion38 decks281 decks
11%synergy
War Room
12%inclusion35 decks281 decks
-4%synergy
Crypt of Agadeem
11%inclusion31 decks281 decks
0%synergy
Secret Tunnel
11%inclusion16 decks147 decks
10%synergy
Shizo, Death's Storehouse
10%inclusion28 decks281 decks
0%synergy
Temple of the False God
8.9%inclusion25 decks281 decks
1%synergy
Takenuma, Abandoned Mire
8.5%inclusion24 decks281 decks
-7%synergy
Barren Moor
7.8%inclusion22 decks281 decks
-2%synergy
The Black Gate
6.0%inclusion17 decks281 decks
3%synergy
Minas Morgul, Dark Fortress
6.0%inclusion17 decks281 decks
3%synergy
Mutavault
6.0%inclusion17 decks281 decks
5%synergy
Mana Artifacts
Sol Ring
83%inclusion234 decks281 decks
-3%synergy
Arcane Signet
48%inclusion135 decks281 decks
-14%synergy
Glistening Sphere
35%inclusion97 decks281 decks
33%synergy
Patchwork Banner
25%inclusion70 decks281 decks
21%synergy
Staff of Compleation
20%inclusion56 decks281 decks
18%synergy
Charcoal Diamond
16%inclusion46 decks281 decks
-6%synergy
Heraldic Banner
16%inclusion44 decks281 decks
10%synergy
Mind Stone
14%inclusion40 decks281 decks
-15%synergy
Phyrexian Atlas
8.2%inclusion23 decks281 decks
8%synergy
The Soul Stone
8.0%inclusion16 decks199 decks
-6%synergy
Caged Sun
7.8%inclusion22 decks281 decks
-4%synergy
Gauntlet of Power
6.8%inclusion19 decks281 decks
3%synergy
Thought Vessel
5.7%inclusion16 decks281 decks
-20%synergy
Throne of Eldraine
5.3%inclusion15 decks281 decks
-5%synergy
Lands
Swamp
99%inclusion279 decks281 decks
4%synergy
Path of Ancestry
35%inclusion98 decks281 decks
30%synergy
Cavern of Souls
22%inclusion63 decks281 decks
16%synergy
Myriad Landscape
14%inclusion39 decks281 decks
-12%synergy
Malakir Rebirth
13%inclusion37 decks281 decks
-10%synergy
Fell the Profane
12%inclusion33 decks281 decks
-7%synergy
Command Tower
11%inclusion30 decks281 decks
5%synergy
Evolving Wilds
6.4%inclusion18 decks281 decks
3%synergy
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