Karumonix, the Rat King (Commander) - Rats

Karumonix, the Rat King
Rank #398
813decks
As CommanderAs CardAverage DeckDecks
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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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Utility Lands
Mana Artifacts
Lands
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Stolen Stark Tech
4.2%inclusion1 decks24 decks
3%synergy
Construct a Cosmic Cube
3.2%inclusion1 decks31 decks
1%synergy
High Synergy Cards
Blightbelly Rat
91%inclusion742 decks813 decks
88%synergy
Piper of the Swarm
87%inclusion706 decks813 decks
80%synergy
Ichor Rats
79%inclusion640 decks813 decks
76%synergy
Pack Rat
82%inclusion664 decks813 decks
76%synergy
Ogre Slumlord
83%inclusion671 decks813 decks
73%synergy
Typhoid Rats
76%inclusion618 decks813 decks
72%synergy
Marrow-Gnawer
75%inclusion609 decks813 decks
71%synergy
Lord Skitter, Sewer King
78%inclusion633 decks813 decks
70%synergy
Lord Skitter's Butcher
72%inclusion586 decks813 decks
69%synergy
Rancid Rats
71%inclusion578 decks813 decks
69%synergy
Top Cards
Infectious Inquiry
71%inclusion577 decks813 decks
68%synergy
Vraska's Fall
68%inclusion555 decks813 decks
65%synergy
Tangled Colony
67%inclusion548 decks813 decks
64%synergy
Septic Rats
67%inclusion547 decks813 decks
65%synergy
Crypt Rats
66%inclusion534 decks813 decks
61%synergy
Drown in Ichor
65%inclusion526 decks813 decks
61%synergy
Burglar Rat
64%inclusion520 decks813 decks
53%synergy
Voracious Vermin
62%inclusion508 decks813 decks
60%synergy
Dark Ritual
56%inclusion458 decks813 decks
-11%synergy
Jet Medallion
55%inclusion445 decks813 decks
-7%synergy
Game Changers
Demonic Tutor
21%inclusion171 decks813 decks
-6%synergy
Vampiric Tutor
16%inclusion128 decks813 decks
-5%synergy
Bolas's Citadel
14%inclusion112 decks813 decks
-15%synergy
Creatures
Stronghold Rats
54%inclusion441 decks813 decks
51%synergy
Persistent Marshstalker
52%inclusion420 decks813 decks
49%synergy
Gnat Miser
50%inclusion407 decks813 decks
47%synergy
Rat Colony
50%inclusion407 decks813 decks
44%synergy
Chittering Skitterling
47%inclusion383 decks813 decks
46%synergy
Wave of Rats
47%inclusion382 decks813 decks
45%synergy
Ratcatcher
46%inclusion378 decks813 decks
43%synergy
Pestilence Rats
40%inclusion325 decks813 decks
38%synergy
Swarm of Rats
40%inclusion322 decks813 decks
37%synergy
Ashcoat of the Shadow Swarm
40%inclusion322 decks813 decks
36%synergy
Nezumi Informant
39%inclusion318 decks813 decks
33%synergy
Ink-Eyes, Servant of Oni
38%inclusion307 decks813 decks
35%synergy
Nezumi Prowler
37%inclusion303 decks813 decks
36%synergy
Changeling Outcast
37%inclusion302 decks813 decks
32%synergy
Chittering Witch
37%inclusion297 decks813 decks
32%synergy
Nashi, Moon Sage's Scion
36%inclusion294 decks813 decks
32%synergy
Ravenous Rats
33%inclusion267 decks813 decks
31%synergy
Ruin Rat
33%inclusion267 decks813 decks
32%synergy
Gnawing Vermin
32%inclusion259 decks813 decks
30%synergy
Ruthless Radrat
32%inclusion258 decks813 decks
31%synergy
Old Flitterfang
31%inclusion253 decks813 decks
30%synergy
Nezumi Cutthroat
28%inclusion229 decks813 decks
27%synergy
Engine Rat
27%inclusion64 decks233 decks
26%synergy
Drainpipe Vermin
26%inclusion215 decks813 decks
25%synergy
Rat King, Pale Piper
26%inclusion28 decks107 decks
22%synergy
Rat King, Verminister
25%inclusion31 decks123 decks
22%synergy
Throat Slitter
25%inclusion201 decks813 decks
23%synergy
Razortooth Rats
24%inclusion198 decks813 decks
24%synergy
Twisted Sewer-Witch
24%inclusion195 decks813 decks
23%synergy
Innocuous Rat
24%inclusion146 decks621 decks
22%synergy
Ayara, First of Locthwain
23%inclusion190 decks813 decks
-2%synergy
Valley Rotcaller
22%inclusion177 decks813 decks
19%synergy
Locust Miser
22%inclusion176 decks813 decks
20%synergy
Mukotai Ambusher
19%inclusion157 decks813 decks
19%synergy
Undercity Dire Rat
19%inclusion36 decks187 decks
17%synergy
Species Specialist
18%inclusion148 decks813 decks
15%synergy
Refurbished Familiar
18%inclusion146 decks813 decks
16%synergy
Daggerfang Duo
18%inclusion142 decks802 decks
17%synergy
Rotting Rats
17%inclusion142 decks813 decks
14%synergy
Nezumi Bladeblesser
17%inclusion137 decks813 decks
16%synergy
Gray Merchant of Asphodel
17%inclusion136 decks813 decks
-34%synergy
Crypt Ghast
16%inclusion132 decks813 decks
-31%synergy
Sinuous Vermin
15%inclusion119 decks813 decks
14%synergy
Okiba-Gang Shinobi
14%inclusion115 decks813 decks
13%synergy
Relentless Rats
14%inclusion113 decks813 decks
12%synergy
Nezumi Graverobber
14%inclusion111 decks813 decks
12%synergy
Skullsnatcher
13%inclusion109 decks813 decks
13%synergy
Chittering Rats
12%inclusion100 decks813 decks
12%synergy
Adaptive Automaton
12%inclusion99 decks813 decks
11%synergy
Elephant-Rat
11%inclusion19 decks170 decks
11%synergy
Instants
Whisper of the Dross
54%inclusion438 decks813 decks
51%synergy
Village Rites
43%inclusion353 decks813 decks
18%synergy
Defile
40%inclusion324 decks813 decks
4%synergy
Rat Out
33%inclusion271 decks813 decks
32%synergy
Go for the Throat
31%inclusion248 decks813 decks
8%synergy
Grim Affliction
31%inclusion248 decks813 decks
29%synergy
Corrupted Conviction
24%inclusion197 decks813 decks
12%synergy
Tainted Strike
21%inclusion173 decks813 decks
18%synergy
Anoint with Affliction
20%inclusion162 decks813 decks
19%synergy
Murder
19%inclusion152 decks813 decks
9%synergy
Deadly Dispute
17%inclusion140 decks813 decks
-9%synergy
Tragic Slip
17%inclusion136 decks813 decks
-3%synergy
Infernal Grasp
16%inclusion131 decks813 decks
-9%synergy
Withering Torment
16%inclusion99 decks628 decks
-16%synergy
Consuming Corruption
16%inclusion128 decks813 decks
0%synergy
Raise the Draugr
13%inclusion104 decks813 decks
12%synergy
Foul-Tongue Shriek
13%inclusion104 decks813 decks
11%synergy
Deadly Rollick
12%inclusion101 decks813 decks
-13%synergy
Fell the Profane
10%inclusion85 decks813 decks
-9%synergy
Virulent Wound
10%inclusion81 decks813 decks
10%synergy
Hero's Downfall
10%inclusion79 decks813 decks
3%synergy
Malakir Rebirth
9.5%inclusion77 decks813 decks
-14%synergy
Doom Blade
9.1%inclusion74 decks813 decks
2%synergy
Gravepurge
8.7%inclusion71 decks813 decks
7%synergy
Bitter Triumph
8.5%inclusion69 decks813 decks
-1%synergy
Sudden Spoiling
7.4%inclusion60 decks813 decks
-1%synergy
Not Dead After All
6.9%inclusion56 decks813 decks
-4%synergy
Unbury
6.3%inclusion8 decks128 decks
6%synergy
Offer Immortality
6.2%inclusion50 decks813 decks
4%synergy
Altar's Reap
5.8%inclusion47 decks813 decks
3%synergy
Cabal Ritual
5.8%inclusion47 decks813 decks
-13%synergy
Death Denied
5.7%inclusion46 decks813 decks
5%synergy
Sheoldred's Edict
5.7%inclusion46 decks813 decks
-9%synergy
Feign Death
5.7%inclusion46 decks813 decks
-3%synergy
Baleful Mastery
5.2%inclusion42 decks813 decks
-3%synergy
Sorceries
Phyresis Outbreak
50%inclusion407 decks813 decks
48%synergy
Feed the Swarm
40%inclusion328 decks813 decks
-10%synergy
Revenge of the Rats
40%inclusion189 decks473 decks
37%synergy
Crippling Fear
36%inclusion295 decks813 decks
33%synergy
Patriarch's Bidding
31%inclusion252 decks813 decks
27%synergy
Vat Emergence
31%inclusion250 decks813 decks
29%synergy
Sign in Blood
31%inclusion248 decks813 decks
-5%synergy
Kindred Dominance
26%inclusion208 decks813 decks
21%synergy
Swarmyard Massacre
26%inclusion205 decks802 decks
23%synergy
Spread the Sickness
21%inclusion167 decks813 decks
20%synergy
Read the Bones
19%inclusion154 decks813 decks
3%synergy
Bloodline Bidding
18%inclusion23 decks129 decks
14%synergy
Night's Whisper
16%inclusion133 decks813 decks
-9%synergy
Feed the Infection
16%inclusion131 decks813 decks
15%synergy
Unearth
14%inclusion114 decks813 decks
5%synergy
Plague of Vermin
13%inclusion107 decks813 decks
11%synergy
Damnation
12%inclusion101 decks813 decks
-8%synergy
Toxic Deluge
12%inclusion96 decks813 decks
-25%synergy
Diabolic Tutor
11%inclusion93 decks813 decks
-2%synergy
Gruesome Fate
11%inclusion90 decks813 decks
9%synergy
Caress of Phyrexia
11%inclusion89 decks813 decks
10%synergy
Victimize
11%inclusion87 decks813 decks
-17%synergy
Geth's Summons
10%inclusion82 decks813 decks
10%synergy
Lab Rats
10%inclusion80 decks813 decks
9%synergy
Reanimate
9.5%inclusion77 decks813 decks
-31%synergy
Mutilate
9.2%inclusion75 decks813 decks
-7%synergy
Echoing Return
9.0%inclusion73 decks813 decks
6%synergy
Diabolic Intent
8.1%inclusion66 decks813 decks
-7%synergy
Fell
8.0%inclusion65 decks813 decks
5%synergy
Return from Extinction
7.7%inclusion63 decks813 decks
7%synergy
Pact of the Serpent
7.4%inclusion60 decks813 decks
6%synergy
Insatiable Avarice
6.9%inclusion56 decks813 decks
-4%synergy
Forever Young
6.5%inclusion53 decks813 decks
5%synergy
Splinter's Technique
6.5%inclusion8 decks123 decks
4%synergy
Bubbling Muck
6.2%inclusion50 decks813 decks
-9%synergy
Haunting Voyage
6.0%inclusion49 decks813 decks
5%synergy
Psychic Whorl
5.5%inclusion44 decks802 decks
5%synergy
Eaten Alive
5.4%inclusion44 decks813 decks
2%synergy
Utility Artifacts
Bontu's Monument
54%inclusion436 decks813 decks
25%synergy
Herald's Horn
45%inclusion369 decks813 decks
40%synergy
Skullclamp
37%inclusion298 decks813 decks
14%synergy
Contagion Clasp
31%inclusion256 decks813 decks
29%synergy
Vanquisher's Banner
31%inclusion250 decks813 decks
27%synergy
Swiftfoot Boots
20%inclusion159 decks813 decks
-12%synergy
Contagion Engine
16%inclusion132 decks813 decks
14%synergy
Banner of Kinship
15%inclusion74 decks480 decks
13%synergy
Lightning Greaves
13%inclusion105 decks813 decks
-21%synergy
Door of Destinies
13%inclusion103 decks813 decks
11%synergy
Icon of Ancestry
11%inclusion93 decks813 decks
11%synergy
Coat of Arms
11%inclusion93 decks813 decks
9%synergy
Whip of Erebos
11%inclusion87 decks813 decks
-0%synergy
Prosthetic Injector
10%inclusion84 decks813 decks
10%synergy
Chronicle of Victory
10%inclusion13 decks129 decks
7%synergy
Thrumming Stone
10%inclusion79 decks813 decks
6%synergy
Grafted Exoskeleton
9.3%inclusion76 decks813 decks
8%synergy
The Darkness Crystal
9.1%inclusion17 decks187 decks
-11%synergy
Wayfarer's Bauble
7.6%inclusion62 decks813 decks
-7%synergy
Thornbite Staff
6.2%inclusion50 decks813 decks
3%synergy
Vat of Rebirth
6.0%inclusion49 decks813 decks
3%synergy
Eldrazi Monument
6.0%inclusion49 decks813 decks
4%synergy
Ashnod's Altar
5.9%inclusion48 decks813 decks
-14%synergy
Sword of the Squeak
5.6%inclusion45 decks802 decks
5%synergy
Gathering Stone
5.4%inclusion7 decks129 decks
4%synergy
Hall of Triumph
5.4%inclusion44 decks813 decks
5%synergy
Obelisk of Urd
5.3%inclusion43 decks813 decks
5%synergy
Sword of Truth and Justice
5.0%inclusion41 decks813 decks
4%synergy
Enchantments
Necrogen Communion
43%inclusion349 decks813 decks
41%synergy
Phyrexian Arena
38%inclusion312 decks813 decks
-1%synergy
Cover of Darkness
32%inclusion264 decks813 decks
29%synergy
Bad Moon
23%inclusion190 decks813 decks
20%synergy
Haunted One
22%inclusion181 decks813 decks
20%synergy
Oversold Cemetery
22%inclusion181 decks813 decks
17%synergy
Phyresis
22%inclusion179 decks813 decks
20%synergy
Grave Pact
18%inclusion144 decks813 decks
-2%synergy
Tribute to Horobi
16%inclusion127 decks813 decks
15%synergy
Black Market
15%inclusion122 decks813 decks
-6%synergy
Black Market Connections
15%inclusion122 decks813 decks
-9%synergy
Vampiric Rites
12%inclusion96 decks813 decks
6%synergy
Lord Skitter's Blessing
10%inclusion83 decks813 decks
10%synergy
Intimidation
7.3%inclusion59 decks813 decks
7%synergy
Dark Prophecy
6.6%inclusion54 decks813 decks
3%synergy
Phyrexian Reclamation
6.5%inclusion53 decks813 decks
-3%synergy
The Meathook Massacre
6.2%inclusion50 decks813 decks
-11%synergy
Dictate of Erebos
5.9%inclusion48 decks813 decks
-5%synergy
Relic Putrescence
5.0%inclusion41 decks813 decks
5%synergy
Planeswalkers
Vraska, Betrayal's Sting
31%inclusion249 decks813 decks
28%synergy
Liliana of the Dark Realms
11%inclusion93 decks813 decks
-2%synergy
Utility Lands
Swarmyard
55%inclusion447 decks813 decks
49%synergy
Bojuka Bog
51%inclusion414 decks813 decks
4%synergy
Karn's Bastion
49%inclusion402 decks813 decks
46%synergy
Mudflat Village
42%inclusion344 decks813 decks
40%synergy
Rogue's Passage
39%inclusion320 decks813 decks
20%synergy
Cabal Coffers
36%inclusion294 decks813 decks
-19%synergy
Witch's Cottage
33%inclusion267 decks813 decks
8%synergy
Cabal Stronghold
26%inclusion208 decks813 decks
-9%synergy
Mortuary Mire
25%inclusion204 decks813 decks
12%synergy
Reliquary Tower
22%inclusion181 decks813 decks
-8%synergy
Urborg, Tomb of Yawgmoth
22%inclusion176 decks813 decks
-16%synergy
Nykthos, Shrine to Nyx
19%inclusion151 decks813 decks
-11%synergy
Three Tree City
18%inclusion148 decks813 decks
14%synergy
Access Tunnel
17%inclusion135 decks813 decks
14%synergy
Phyrexian Tower
15%inclusion123 decks813 decks
-11%synergy
Castle Locthwain
12%inclusion101 decks813 decks
-4%synergy
Shizo, Death's Storehouse
12%inclusion94 decks813 decks
1%synergy
Crypt of Agadeem
11%inclusion88 decks813 decks
-1%synergy
War Room
11%inclusion88 decks813 decks
-5%synergy
Barren Moor
9.5%inclusion77 decks813 decks
0%synergy
Secret Tunnel
9.0%inclusion14 decks155 decks
8%synergy
Temple of the False God
7.5%inclusion61 decks813 decks
-0%synergy
Takenuma, Abandoned Mire
6.6%inclusion54 decks813 decks
-9%synergy
The Dross Pits
6.2%inclusion50 decks813 decks
5%synergy
Minas Morgul, Dark Fortress
5.5%inclusion45 decks813 decks
3%synergy
Mana Artifacts
Sol Ring
80%inclusion649 decks813 decks
-6%synergy
Arcane Signet
52%inclusion419 decks813 decks
-10%synergy
Glistening Sphere
39%inclusion321 decks813 decks
38%synergy
Patchwork Banner
29%inclusion233 decks810 decks
24%synergy
Charcoal Diamond
22%inclusion176 decks813 decks
-0%synergy
Mind Stone
18%inclusion146 decks813 decks
-10%synergy
Staff of Compleation
16%inclusion128 decks813 decks
14%synergy
Heraldic Banner
15%inclusion119 decks813 decks
9%synergy
Phyrexian Atlas
11%inclusion91 decks813 decks
11%synergy
Thought Vessel
10%inclusion83 decks813 decks
-15%synergy
Caged Sun
9.1%inclusion74 decks813 decks
-2%synergy
Commander's Sphere
7.6%inclusion62 decks813 decks
-0%synergy
The Soul Stone
7.5%inclusion13 decks173 decks
-8%synergy
Throne of Eldraine
6.0%inclusion49 decks813 decks
-3%synergy
Lands
Swamp
98%inclusion797 decks813 decks
3%synergy
Path of Ancestry
37%inclusion299 decks813 decks
32%synergy
Myriad Landscape
23%inclusion184 decks813 decks
-2%synergy
Cavern of Souls
15%inclusion125 decks813 decks
9%synergy
Command Tower
13%inclusion106 decks813 decks
7%synergy
Fell the Profane
10%inclusion85 decks813 decks
-9%synergy
Malakir Rebirth
9.5%inclusion77 decks813 decks
-14%synergy
Evolving Wilds
7.9%inclusion64 decks813 decks
4%synergy
Escape Tunnel
7.5%inclusion61 decks813 decks
6%synergy
Big Apple, 3 a.m.
7.5%inclusion8 decks107 decks
6%synergy
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