Karumonix, the Rat King (Commander) - Expensive Rats

Karumonix, the Rat King
Rank #399
81decks
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
99%inclusion80 decks81 decks
95%synergy
Blightbelly Rat
86%inclusion70 decks81 decks
83%synergy
Piper of the Swarm
89%inclusion72 decks81 decks
82%synergy
Pack Rat
88%inclusion71 decks81 decks
82%synergy
Ichor Rats
81%inclusion66 decks81 decks
79%synergy
Lord Skitter, Sewer King
86%inclusion70 decks81 decks
78%synergy
Ashcoat of the Shadow Swarm
80%inclusion65 decks81 decks
77%synergy
Swarmyard
81%inclusion66 decks81 decks
76%synergy
Rat King, Pale Piper
71%inclusion5 decks7 decks
67%synergy
Ogre Slumlord
75%inclusion61 decks81 decks
65%synergy
Top Cards
Dark Ritual
84%inclusion68 decks81 decks
17%synergy
Jet Medallion
77%inclusion62 decks81 decks
14%synergy
Septic Rats
64%inclusion52 decks81 decks
62%synergy
Bontu's Monument
62%inclusion50 decks81 decks
33%synergy
Tangled Colony
60%inclusion49 decks81 decks
57%synergy
Vraska's Fall
59%inclusion48 decks81 decks
56%synergy
Crypt Rats
58%inclusion47 decks81 decks
54%synergy
Typhoid Rats
58%inclusion47 decks81 decks
54%synergy
Rancid Rats
58%inclusion47 decks81 decks
56%synergy
Infectious Inquiry
57%inclusion46 decks81 decks
54%synergy
Game Changers
Demonic Tutor
73%inclusion59 decks81 decks
46%synergy
Vampiric Tutor
62%inclusion50 decks81 decks
41%synergy
Bolas's Citadel
26%inclusion21 decks81 decks
-2%synergy
Imperial Seal
22%inclusion18 decks81 decks
15%synergy
Ancient Tomb
19%inclusion15 decks81 decks
7%synergy
Necropotence
17%inclusion14 decks81 decks
3%synergy
The One Ring
11%inclusion9 decks81 decks
2%synergy
Creatures
Ratcatcher
54%inclusion44 decks81 decks
51%synergy
Rat Colony
54%inclusion44 decks81 decks
49%synergy
Lord Skitter's Butcher
52%inclusion42 decks81 decks
49%synergy
Gnat Miser
52%inclusion42 decks81 decks
49%synergy
Rat King, Verminister
50%inclusion4 decks8 decks
47%synergy
Ink-Eyes, Servant of Oni
48%inclusion39 decks81 decks
45%synergy
Nashi, Moon Sage's Scion
48%inclusion39 decks81 decks
44%synergy
Burglar Rat
46%inclusion37 decks81 decks
35%synergy
Stronghold Rats
41%inclusion33 decks81 decks
37%synergy
Persistent Marshstalker
40%inclusion32 decks81 decks
37%synergy
Roaming Throne
35%inclusion28 decks81 decks
32%synergy
Ayara, First of Locthwain
35%inclusion28 decks81 decks
9%synergy
Swarm of Rats
35%inclusion28 decks81 decks
32%synergy
Wave of Rats
35%inclusion28 decks81 decks
33%synergy
Changeling Outcast
33%inclusion27 decks81 decks
28%synergy
Throat Slitter
32%inclusion26 decks81 decks
30%synergy
Voracious Vermin
31%inclusion25 decks81 decks
28%synergy
Locust Miser
28%inclusion23 decks81 decks
27%synergy
Valley Rotcaller
27%inclusion22 decks81 decks
24%synergy
Crypt Ghast
27%inclusion22 decks81 decks
-20%synergy
Nezumi Informant
26%inclusion21 decks81 decks
20%synergy
Species Specialist
25%inclusion20 decks81 decks
21%synergy
Old Flitterfang
22%inclusion18 decks81 decks
21%synergy
Emeritus of Woe
20%inclusion1 decks5 decks
12%synergy
Filth
20%inclusion16 decks81 decks
17%synergy
Chittering Skitterling
20%inclusion16 decks81 decks
19%synergy
Yawgmoth, Thran Physician
20%inclusion16 decks81 decks
10%synergy
Chittering Witch
19%inclusion15 decks81 decks
14%synergy
Ruin Rat
19%inclusion15 decks81 decks
17%synergy
Ruthless Radrat
17%inclusion14 decks81 decks
17%synergy
Gray Merchant of Asphodel
17%inclusion14 decks81 decks
-33%synergy
Pestilence Rats
17%inclusion14 decks81 decks
15%synergy
Zodiac Rat
16%inclusion13 decks81 decks
16%synergy
Nezumi Prowler
16%inclusion13 decks81 decks
15%synergy
Nezumi Graverobber
15%inclusion12 decks81 decks
13%synergy
Okiba-Gang Shinobi
15%inclusion12 decks81 decks
14%synergy
Splinter, Hamato Yoshi
14%inclusion1 decks7 decks
14%synergy
Gnawing Vermin
14%inclusion11 decks81 decks
12%synergy
Adaptive Automaton
14%inclusion11 decks81 decks
13%synergy
Ravenous Rats
12%inclusion10 decks81 decks
11%synergy
Refurbished Familiar
11%inclusion9 decks81 decks
9%synergy
Nezumi Cutthroat
11%inclusion9 decks81 decks
10%synergy
Skithiryx, the Blight Dragon
11%inclusion9 decks81 decks
10%synergy
Drainpipe Vermin
10%inclusion8 decks81 decks
9%synergy
Engine Rat
8.7%inclusion2 decks23 decks
7%synergy
Relentless Rats
8.6%inclusion7 decks81 decks
7%synergy
Razortooth Rats
8.6%inclusion7 decks81 decks
8%synergy
Twisted Sewer-Witch
8.6%inclusion7 decks81 decks
7%synergy
Splinter, the Mentor
8.3%inclusion1 decks12 decks
8%synergy
Innocuous Rat
7.5%inclusion5 decks67 decks
6%synergy
Instants
Deadly Rollick
53%inclusion43 decks81 decks
28%synergy
Go for the Throat
33%inclusion27 decks81 decks
11%synergy
Whisper of the Dross
32%inclusion26 decks81 decks
29%synergy
Defile
30%inclusion24 decks81 decks
-6%synergy
Village Rites
28%inclusion23 decks81 decks
3%synergy
Fell the Profane
23%inclusion19 decks81 decks
4%synergy
Infernal Grasp
23%inclusion19 decks81 decks
-2%synergy
Tainted Strike
23%inclusion19 decks81 decks
20%synergy
Malakir Rebirth
22%inclusion18 decks81 decks
-1%synergy
Deadly Dispute
20%inclusion16 decks81 decks
-7%synergy
Cabal Ritual
19%inclusion15 decks81 decks
-0%synergy
Tragic Slip
19%inclusion15 decks81 decks
-1%synergy
Withering Torment
18%inclusion12 decks67 decks
-13%synergy
Grim Affliction
16%inclusion13 decks81 decks
14%synergy
Sudden Spoiling
15%inclusion12 decks81 decks
6%synergy
Imp's Mischief
14%inclusion11 decks81 decks
-11%synergy
Anoint with Affliction
14%inclusion11 decks81 decks
13%synergy
Rat Out
12%inclusion10 decks81 decks
11%synergy
Doom Blade
12%inclusion10 decks81 decks
5%synergy
Snuff Out
11%inclusion9 decks81 decks
-2%synergy
Culling the Weak
11%inclusion9 decks81 decks
-6%synergy
Withering Boon
11%inclusion9 decks81 decks
7%synergy
Corrupted Conviction
11%inclusion9 decks81 decks
-1%synergy
Hero's Downfall
10%inclusion8 decks81 decks
3%synergy
Murder
10%inclusion8 decks81 decks
0%synergy
Dismember
10%inclusion8 decks81 decks
-1%synergy
Sheoldred's Edict
8.6%inclusion7 decks81 decks
-6%synergy
Bitter Triumph
8.6%inclusion7 decks81 decks
-1%synergy
Foul-Tongue Shriek
8.6%inclusion7 decks81 decks
7%synergy
Entomb
7.4%inclusion6 decks81 decks
-5%synergy
Not Dead After All
6.2%inclusion5 decks81 decks
-5%synergy
Darkness
6.2%inclusion5 decks81 decks
-4%synergy
Baleful Mastery
6.2%inclusion5 decks81 decks
-2%synergy
Sorceries
Phyresis Outbreak
54%inclusion44 decks81 decks
53%synergy
Feed the Swarm
47%inclusion38 decks81 decks
-3%synergy
Drown in Ichor
47%inclusion38 decks81 decks
43%synergy
Kindred Dominance
41%inclusion33 decks81 decks
36%synergy
Damnation
40%inclusion32 decks81 decks
19%synergy
Patriarch's Bidding
35%inclusion28 decks81 decks
30%synergy
Swarmyard Massacre
32%inclusion25 decks78 decks
30%synergy
Reanimate
31%inclusion25 decks81 decks
-9%synergy
Plague of Vermin
31%inclusion25 decks81 decks
28%synergy
Toxic Deluge
30%inclusion24 decks81 decks
-7%synergy
Revenge of the Rats
24%inclusion12 decks49 decks
21%synergy
Bloodline Bidding
22%inclusion2 decks9 decks
18%synergy
Sign in Blood
17%inclusion14 decks81 decks
-18%synergy
Grim Tutor
17%inclusion14 decks81 decks
6%synergy
Diabolic Intent
15%inclusion12 decks81 decks
-0%synergy
Unearth
15%inclusion12 decks81 decks
6%synergy
Shredder's Technique
14%inclusion1 decks7 decks
11%synergy
Vat Emergence
14%inclusion11 decks81 decks
12%synergy
Victimize
14%inclusion11 decks81 decks
-14%synergy
Crippling Fear
14%inclusion11 decks81 decks
11%synergy
Bubbling Muck
12%inclusion10 decks81 decks
-3%synergy
Blasphemous Edict
12%inclusion6 decks49 decks
-4%synergy
Haunting Voyage
11%inclusion9 decks81 decks
10%synergy
Pact of the Serpent
11%inclusion9 decks81 decks
9%synergy
Agadeem's Awakening
10%inclusion8 decks81 decks
2%synergy
Exsanguinate
10%inclusion8 decks81 decks
-15%synergy
Geth's Summons
10%inclusion8 decks81 decks
9%synergy
Gruesome Fate
10%inclusion8 decks81 decks
8%synergy
Diabolic Tutor
8.6%inclusion7 decks81 decks
-5%synergy
Spread the Sickness
7.4%inclusion6 decks81 decks
7%synergy
Torment of Hailfire
7.4%inclusion6 decks81 decks
-8%synergy
Echoing Return
7.4%inclusion6 decks81 decks
4%synergy
Read the Bones
7.4%inclusion6 decks81 decks
-9%synergy
Caress of Phyrexia
7.4%inclusion6 decks81 decks
7%synergy
Mutilate
6.2%inclusion5 decks81 decks
-10%synergy
Night's Whisper
6.2%inclusion5 decks81 decks
-19%synergy
Syphon Mind
6.2%inclusion5 decks81 decks
-6%synergy
Lab Rats
6.2%inclusion5 decks81 decks
6%synergy
Beseech the Mirror
6.2%inclusion5 decks81 decks
-1%synergy
Strategic Betrayal
5.6%inclusion1 decks18 decks
5%synergy
Utility Artifacts
Herald's Horn
57%inclusion46 decks81 decks
51%synergy
Skullclamp
54%inclusion44 decks81 decks
32%synergy
Vanquisher's Banner
32%inclusion26 decks81 decks
28%synergy
Contagion Engine
26%inclusion21 decks81 decks
24%synergy
Lightning Greaves
23%inclusion19 decks81 decks
-10%synergy
Chronicle of Victory
22%inclusion2 decks9 decks
20%synergy
The Darkness Crystal
21%inclusion3 decks14 decks
1%synergy
Coat of Arms
19%inclusion15 decks81 decks
16%synergy
Thornbite Staff
19%inclusion15 decks81 decks
16%synergy
Whip of Erebos
16%inclusion13 decks81 decks
5%synergy
Door of Destinies
16%inclusion13 decks81 decks
14%synergy
Swiftfoot Boots
16%inclusion13 decks81 decks
-15%synergy
Sword of Truth and Justice
15%inclusion12 decks81 decks
14%synergy
Thrumming Stone
15%inclusion12 decks81 decks
11%synergy
Contagion Clasp
14%inclusion11 decks81 decks
11%synergy
Ashnod's Altar
14%inclusion11 decks81 decks
-6%synergy
Grafted Exoskeleton
12%inclusion10 decks81 decks
11%synergy
Banner of Kinship
10%inclusion5 decks50 decks
8%synergy
Akroma's Memorial
10%inclusion8 decks81 decks
9%synergy
Eldrazi Monument
10%inclusion8 decks81 decks
8%synergy
Expedition Map
8.6%inclusion7 decks81 decks
-3%synergy
Phyrexian Altar
6.2%inclusion5 decks81 decks
-8%synergy
Urza's Incubator
6.2%inclusion5 decks81 decks
4%synergy
Enchantments
Cover of Darkness
57%inclusion46 decks81 decks
54%synergy
Phyrexian Arena
51%inclusion41 decks81 decks
11%synergy
Grave Pact
46%inclusion37 decks81 decks
26%synergy
Black Market Connections
44%inclusion36 decks81 decks
20%synergy
Necrogen Communion
30%inclusion24 decks81 decks
28%synergy
Haunted One
28%inclusion23 decks81 decks
26%synergy
The Meathook Massacre
22%inclusion18 decks81 decks
5%synergy
Black Market
22%inclusion18 decks81 decks
2%synergy
Oversold Cemetery
20%inclusion16 decks81 decks
15%synergy
Dictate of Erebos
17%inclusion14 decks81 decks
6%synergy
Bad Moon
16%inclusion13 decks81 decks
13%synergy
Phyresis
15%inclusion12 decks81 decks
13%synergy
Phyrexian Reclamation
10%inclusion8 decks81 decks
0%synergy
Exquisite Blood
8.6%inclusion7 decks81 decks
-5%synergy
Dark Prophecy
8.6%inclusion7 decks81 decks
5%synergy
Sothera, the Supervoid
7.7%inclusion1 decks13 decks
5%synergy
Glistening Oil
7.4%inclusion6 decks81 decks
7%synergy
Sanguine Bond
7.4%inclusion6 decks81 decks
-4%synergy
Lord Skitter's Blessing
7.4%inclusion6 decks81 decks
7%synergy
Vampiric Rites
6.2%inclusion5 decks81 decks
0%synergy
No Mercy
6.2%inclusion5 decks81 decks
-1%synergy
Meathook Massacre II
5.8%inclusion4 decks69 decks
-0%synergy
Planeswalkers
Vraska, Betrayal's Sting
44%inclusion36 decks81 decks
42%synergy
Liliana of the Dark Realms
20%inclusion16 decks81 decks
6%synergy
Utility Lands
Cabal Coffers
90%inclusion73 decks81 decks
35%synergy
Urborg, Tomb of Yawgmoth
81%inclusion66 decks81 decks
44%synergy
Nykthos, Shrine to Nyx
74%inclusion60 decks81 decks
44%synergy
Bojuka Bog
70%inclusion57 decks81 decks
23%synergy
Karn's Bastion
67%inclusion54 decks81 decks
63%synergy
Cabal Stronghold
60%inclusion49 decks81 decks
26%synergy
Phyrexian Tower
56%inclusion45 decks81 decks
30%synergy
Three Tree City
47%inclusion38 decks81 decks
42%synergy
Rogue's Passage
40%inclusion32 decks81 decks
20%synergy
Shizo, Death's Storehouse
38%inclusion31 decks81 decks
28%synergy
Reliquary Tower
38%inclusion31 decks81 decks
8%synergy
Mudflat Village
37%inclusion30 decks81 decks
34%synergy
War Room
31%inclusion25 decks81 decks
15%synergy
Takenuma, Abandoned Mire
31%inclusion25 decks81 decks
15%synergy
Witch's Cottage
30%inclusion24 decks81 decks
5%synergy
Secret Tunnel
27%inclusion3 decks11 decks
26%synergy
Castle Locthwain
26%inclusion21 decks81 decks
9%synergy
Mortuary Mire
22%inclusion18 decks81 decks
9%synergy
Crypt of Agadeem
21%inclusion17 decks81 decks
9%synergy
Inkmoth Nexus
17%inclusion14 decks81 decks
16%synergy
Minas Morgul, Dark Fortress
16%inclusion13 decks81 decks
13%synergy
Urza's Saga
14%inclusion11 decks81 decks
6%synergy
Access Tunnel
12%inclusion10 decks81 decks
9%synergy
Lake of the Dead
11%inclusion9 decks81 decks
6%synergy
The Black Gate
8.6%inclusion7 decks81 decks
5%synergy
Susur Secundi, Void Altar
7.7%inclusion1 decks13 decks
0%synergy
Mutavault
7.4%inclusion6 decks81 decks
7%synergy
Volrath's Stronghold
7.4%inclusion6 decks81 decks
4%synergy
Leechridden Swamp
7.4%inclusion6 decks81 decks
5%synergy
Midgar, City of Mako
7.1%inclusion1 decks14 decks
-4%synergy
Barren Moor
6.2%inclusion5 decks81 decks
-3%synergy
Strip Mine
6.2%inclusion5 decks81 decks
3%synergy
Mana Artifacts
Sol Ring
90%inclusion73 decks81 decks
5%synergy
Arcane Signet
52%inclusion42 decks81 decks
-10%synergy
Glistening Sphere
49%inclusion40 decks81 decks
48%synergy
The Soul Stone
38%inclusion5 decks13 decks
23%synergy
Patchwork Banner
26%inclusion21 decks80 decks
22%synergy
Staff of Compleation
20%inclusion16 decks81 decks
18%synergy
Throne of Eldraine
20%inclusion16 decks81 decks
10%synergy
Charcoal Diamond
19%inclusion15 decks81 decks
-3%synergy
Caged Sun
12%inclusion10 decks81 decks
2%synergy
Thought Vessel
11%inclusion9 decks81 decks
-14%synergy
Firdoch Core
11%inclusion1 decks9 decks
11%synergy
White Lotus Tile
9.1%inclusion1 decks11 decks
9%synergy
Commander's Sphere
8.6%inclusion7 decks81 decks
1%synergy
Heraldic Banner
7.4%inclusion6 decks81 decks
2%synergy
Mind Stone
7.4%inclusion6 decks81 decks
-21%synergy
Nyx Lotus
7.4%inclusion6 decks81 decks
1%synergy
Extraplanar Lens
7.4%inclusion6 decks81 decks
3%synergy
Mox Amber
6.2%inclusion5 decks81 decks
2%synergy
Phyrexian Atlas
6.2%inclusion5 decks81 decks
6%synergy
Sceptre of Eternal Glory
6.2%inclusion5 decks81 decks
-2%synergy
Lands
Swamp
91%inclusion74 decks81 decks
-4%synergy
Cavern of Souls
64%inclusion52 decks81 decks
57%synergy
Path of Ancestry
36%inclusion29 decks81 decks
31%synergy
Fell the Profane
23%inclusion19 decks81 decks
4%synergy
Malakir Rebirth
22%inclusion18 decks81 decks
-1%synergy
Command Tower
20%inclusion16 decks81 decks
14%synergy
Myriad Landscape
20%inclusion16 decks81 decks
-5%synergy
Snow-Covered Swamp
15%inclusion12 decks81 decks
8%synergy
Big Apple, 3 a.m.
14%inclusion1 decks7 decks
12%synergy
Agadeem's Awakening
10%inclusion8 decks81 decks
2%synergy
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