Karumonix, the Rat King (Commander) - Rat Colony

Karumonix, the Rat King
Rank #395
557decks
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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Rat Colony
100%inclusion556 decks557 decks
94%synergy
Marrow-Gnawer
81%inclusion452 decks557 decks
78%synergy
Piper of the Swarm
83%inclusion463 decks557 decks
76%synergy
Pack Rat
78%inclusion433 decks557 decks
72%synergy
Blightbelly Rat
73%inclusion407 decks557 decks
70%synergy
Ogre Slumlord
75%inclusion420 decks557 decks
65%synergy
Ichor Rats
67%inclusion374 decks557 decks
64%synergy
Lord Skitter, Sewer King
69%inclusion384 decks557 decks
61%synergy
Infectious Inquiry
58%inclusion323 decks557 decks
55%synergy
Vraska's Fall
57%inclusion317 decks557 decks
54%synergy
Top Cards
Jet Medallion
66%inclusion365 decks557 decks
3%synergy
Bontu's Monument
64%inclusion356 decks557 decks
35%synergy
Dark Ritual
63%inclusion351 decks557 decks
-4%synergy
Herald's Horn
54%inclusion301 decks557 decks
48%synergy
Lord Skitter's Butcher
53%inclusion297 decks557 decks
50%synergy
Crypt Rats
53%inclusion294 decks557 decks
48%synergy
Typhoid Rats
52%inclusion289 decks557 decks
48%synergy
Tangled Colony
50%inclusion280 decks557 decks
47%synergy
Drown in Ichor
50%inclusion280 decks557 decks
47%synergy
Ashcoat of the Shadow Swarm
49%inclusion274 decks557 decks
46%synergy
Game Changers
Demonic Tutor
33%inclusion182 decks557 decks
5%synergy
Vampiric Tutor
24%inclusion136 decks557 decks
4%synergy
Bolas's Citadel
20%inclusion114 decks557 decks
-8%synergy
Necropotence
5.2%inclusion29 decks557 decks
-9%synergy
Creatures
Septic Rats
47%inclusion264 decks557 decks
46%synergy
Ratcatcher
47%inclusion260 decks557 decks
43%synergy
Rancid Rats
46%inclusion259 decks557 decks
44%synergy
Voracious Vermin
44%inclusion246 decks557 decks
41%synergy
Burglar Rat
42%inclusion236 decks557 decks
32%synergy
Rat King, Verminister
41%inclusion7 decks17 decks
38%synergy
Persistent Marshstalker
38%inclusion183 decks480 decks
35%synergy
Gnat Miser
38%inclusion210 decks557 decks
35%synergy
Swarm of Rats
36%inclusion201 decks557 decks
34%synergy
Rat King, Pale Piper
36%inclusion5 decks14 decks
32%synergy
Wave of Rats
35%inclusion196 decks557 decks
33%synergy
Stronghold Rats
35%inclusion194 decks557 decks
31%synergy
Ink-Eyes, Servant of Oni
31%inclusion174 decks557 decks
28%synergy
Chittering Skitterling
31%inclusion171 decks557 decks
30%synergy
Ayara, First of Locthwain
27%inclusion151 decks557 decks
2%synergy
Pestilence Rats
27%inclusion149 decks557 decks
25%synergy
Species Specialist
26%inclusion147 decks557 decks
23%synergy
Nashi, Moon Sage's Scion
26%inclusion147 decks557 decks
23%synergy
Nezumi Informant
26%inclusion144 decks557 decks
19%synergy
Old Flitterfang
24%inclusion135 decks557 decks
23%synergy
Chittering Witch
24%inclusion134 decks557 decks
20%synergy
Changeling Outcast
23%inclusion130 decks557 decks
18%synergy
Ruthless Radrat
23%inclusion129 decks557 decks
22%synergy
Valley Rotcaller
21%inclusion102 decks490 decks
18%synergy
Innocuous Rat
20%inclusion67 decks337 decks
19%synergy
Crypt Ghast
19%inclusion106 decks557 decks
-28%synergy
Nezumi Prowler
19%inclusion105 decks557 decks
17%synergy
Gray Merchant of Asphodel
18%inclusion103 decks557 decks
-32%synergy
Ruin Rat
18%inclusion103 decks557 decks
17%synergy
Gnawing Vermin
18%inclusion100 decks557 decks
16%synergy
Ravenous Rats
18%inclusion98 decks557 decks
16%synergy
Locust Miser
17%inclusion96 decks557 decks
16%synergy
Twisted Sewer-Witch
17%inclusion94 decks557 decks
15%synergy
Throat Slitter
16%inclusion91 decks557 decks
15%synergy
Engine Rat
15%inclusion6 decks41 decks
13%synergy
Daggerfang Duo
15%inclusion68 decks468 decks
14%synergy
Drainpipe Vermin
14%inclusion76 decks557 decks
12%synergy
Relentless Rats
13%inclusion75 decks557 decks
12%synergy
Nezumi Cutthroat
13%inclusion75 decks557 decks
13%synergy
Razortooth Rats
13%inclusion73 decks557 decks
13%synergy
Rotting Rats
12%inclusion68 decks557 decks
9%synergy
Undercity Dire Rat
11%inclusion3 decks27 decks
9%synergy
Roaming Throne
11%inclusion61 decks557 decks
8%synergy
Refurbished Familiar
11%inclusion59 decks557 decks
8%synergy
Mukotai Ambusher
9.3%inclusion52 decks557 decks
9%synergy
Yawgmoth, Thran Physician
9.0%inclusion50 decks557 decks
-1%synergy
Elephant-Rat
8.0%inclusion2 decks25 decks
8%synergy
Nezumi Bladeblesser
7.9%inclusion44 decks557 decks
7%synergy
Okiba-Gang Shinobi
7.9%inclusion44 decks557 decks
7%synergy
Adaptive Automaton
7.5%inclusion42 decks557 decks
7%synergy
Instants
Whisper of the Dross
41%inclusion231 decks557 decks
39%synergy
Defile
38%inclusion214 decks557 decks
2%synergy
Village Rites
38%inclusion213 decks557 decks
13%synergy
Go for the Throat
31%inclusion172 decks557 decks
8%synergy
Rat Out
21%inclusion118 decks557 decks
20%synergy
Corrupted Conviction
20%inclusion109 decks557 decks
7%synergy
Withering Torment
18%inclusion61 decks341 decks
-14%synergy
Grim Affliction
17%inclusion95 decks557 decks
15%synergy
Deadly Rollick
17%inclusion94 decks557 decks
-8%synergy
Infernal Grasp
16%inclusion90 decks557 decks
-9%synergy
Deadly Dispute
16%inclusion89 decks557 decks
-10%synergy
Murder
15%inclusion84 decks557 decks
5%synergy
Tainted Strike
13%inclusion70 decks557 decks
10%synergy
Tragic Slip
13%inclusion70 decks557 decks
-7%synergy
Foul-Tongue Shriek
12%inclusion66 decks557 decks
10%synergy
Consuming Corruption
11%inclusion63 decks557 decks
-4%synergy
Bitter Triumph
11%inclusion60 decks557 decks
1%synergy
Unbury
11%inclusion2 decks19 decks
10%synergy
Gravepurge
10%inclusion53 decks557 decks
8%synergy
Hero's Downfall
8.4%inclusion47 decks557 decks
2%synergy
Doom Blade
8.4%inclusion47 decks557 decks
1%synergy
Malakir Rebirth
8.3%inclusion46 decks557 decks
-15%synergy
Anoint with Affliction
8.1%inclusion45 decks557 decks
8%synergy
Fell the Profane
7.4%inclusion41 decks557 decks
-12%synergy
Cabal Ritual
6.8%inclusion38 decks557 decks
-12%synergy
Raise the Draugr
6.6%inclusion37 decks557 decks
6%synergy
Sudden Spoiling
6.6%inclusion37 decks557 decks
-2%synergy
Culling the Weak
5.7%inclusion32 decks557 decks
-11%synergy
Baleful Mastery
5.4%inclusion30 decks557 decks
-3%synergy
Death Denied
5.2%inclusion29 decks557 decks
4%synergy
Sorceries
Phyresis Outbreak
47%inclusion261 decks557 decks
45%synergy
Patriarch's Bidding
37%inclusion206 decks557 decks
33%synergy
Feed the Swarm
36%inclusion203 decks557 decks
-14%synergy
Revenge of the Rats
35%inclusion76 decks219 decks
32%synergy
Kindred Dominance
31%inclusion173 decks557 decks
26%synergy
Crippling Fear
31%inclusion170 decks557 decks
28%synergy
Swarmyard Massacre
28%inclusion132 decks468 decks
26%synergy
Sign in Blood
27%inclusion153 decks557 decks
-8%synergy
Echoing Return
22%inclusion125 decks557 decks
19%synergy
Vat Emergence
16%inclusion90 decks557 decks
15%synergy
Night's Whisper
16%inclusion90 decks557 decks
-9%synergy
Plague of Vermin
16%inclusion90 decks557 decks
14%synergy
Bloodline Bidding
16%inclusion3 decks19 decks
11%synergy
Damnation
15%inclusion85 decks557 decks
-5%synergy
Diabolic Intent
15%inclusion84 decks557 decks
0%synergy
Diabolic Tutor
15%inclusion81 decks557 decks
0%synergy
Toxic Deluge
14%inclusion79 decks557 decks
-23%synergy
Spread the Sickness
13%inclusion73 decks557 decks
12%synergy
Read the Bones
13%inclusion72 decks557 decks
-4%synergy
Reanimate
10%inclusion58 decks557 decks
-30%synergy
Gruesome Fate
10%inclusion58 decks557 decks
8%synergy
Unearth
10%inclusion54 decks557 decks
1%synergy
Pact of the Serpent
9.3%inclusion52 decks557 decks
8%synergy
Mutilate
8.8%inclusion49 decks557 decks
-8%synergy
Insatiable Avarice
8.8%inclusion49 decks557 decks
-3%synergy
Grim Tutor
8.6%inclusion48 decks557 decks
-3%synergy
Caress of Phyrexia
7.2%inclusion40 decks557 decks
7%synergy
Victimize
7.0%inclusion39 decks557 decks
-20%synergy
Blasphemous Edict
6.8%inclusion15 decks219 decks
-10%synergy
Lab Rats
6.8%inclusion38 decks557 decks
6%synergy
Feed the Infection
6.5%inclusion36 decks557 decks
6%synergy
Haunting Voyage
6.3%inclusion35 decks557 decks
5%synergy
Secret Salvage
5.7%inclusion32 decks557 decks
4%synergy
Forever Young
5.6%inclusion31 decks557 decks
4%synergy
Bubbling Muck
5.6%inclusion31 decks557 decks
-10%synergy
In Garruk's Wake
5.6%inclusion31 decks557 decks
2%synergy
Living Death
5.2%inclusion29 decks557 decks
-5%synergy
Utility Artifacts
Skullclamp
46%inclusion258 decks557 decks
24%synergy
Vanquisher's Banner
38%inclusion210 decks557 decks
34%synergy
Thrumming Stone
31%inclusion172 decks557 decks
27%synergy
Banner of Kinship
23%inclusion51 decks225 decks
21%synergy
Swiftfoot Boots
18%inclusion102 decks557 decks
-13%synergy
Contagion Clasp
18%inclusion101 decks557 decks
16%synergy
Lightning Greaves
18%inclusion98 decks557 decks
-16%synergy
Coat of Arms
17%inclusion94 decks557 decks
14%synergy
Door of Destinies
16%inclusion88 decks557 decks
14%synergy
Chronicle of Victory
16%inclusion3 decks19 decks
13%synergy
Whip of Erebos
14%inclusion79 decks557 decks
3%synergy
Contagion Engine
12%inclusion66 decks557 decks
10%synergy
Gathering Stone
11%inclusion2 decks19 decks
9%synergy
Ashnod's Altar
7.9%inclusion44 decks557 decks
-12%synergy
Icon of Ancestry
7.5%inclusion42 decks557 decks
7%synergy
The Darkness Crystal
7.4%inclusion2 decks27 decks
-13%synergy
Eldrazi Monument
7.4%inclusion41 decks557 decks
6%synergy
Thornbite Staff
7.2%inclusion40 decks557 decks
4%synergy
Sword of the Squeak
5.8%inclusion27 decks468 decks
5%synergy
Wayfarer's Bauble
5.6%inclusion31 decks557 decks
-9%synergy
Enchantments
Phyrexian Arena
39%inclusion215 decks557 decks
-1%synergy
Cover of Darkness
30%inclusion165 decks557 decks
27%synergy
Necrogen Communion
26%inclusion147 decks557 decks
25%synergy
Haunted One
25%inclusion142 decks557 decks
23%synergy
Bad Moon
23%inclusion129 decks557 decks
20%synergy
Grave Pact
18%inclusion102 decks557 decks
-1%synergy
Oversold Cemetery
17%inclusion95 decks557 decks
12%synergy
Black Market
16%inclusion88 decks557 decks
-5%synergy
Black Market Connections
16%inclusion88 decks557 decks
-8%synergy
Phyresis
11%inclusion63 decks557 decks
9%synergy
Phyrexian Reclamation
10%inclusion54 decks557 decks
0%synergy
Vampiric Rites
9.2%inclusion51 decks557 decks
3%synergy
Dictate of Erebos
8.8%inclusion49 decks557 decks
-2%synergy
Tribute to Horobi
7.9%inclusion44 decks557 decks
7%synergy
Lord Skitter's Blessing
7.4%inclusion41 decks557 decks
7%synergy
Dark Prophecy
6.8%inclusion38 decks557 decks
3%synergy
The Meathook Massacre
6.6%inclusion37 decks557 decks
-11%synergy
Intimidation
5.0%inclusion28 decks557 decks
4%synergy
Planeswalkers
Vraska, Betrayal's Sting
26%inclusion146 decks557 decks
24%synergy
Liliana of the Dark Realms
11%inclusion61 decks557 decks
-3%synergy
Utility Lands
Swarmyard
59%inclusion329 decks557 decks
53%synergy
Cabal Coffers
47%inclusion263 decks557 decks
-8%synergy
Bojuka Bog
44%inclusion247 decks557 decks
-3%synergy
Karn's Bastion
42%inclusion233 decks557 decks
38%synergy
Cabal Stronghold
35%inclusion193 decks557 decks
0%synergy
Mudflat Village
31%inclusion157 decks508 decks
28%synergy
Rogue's Passage
30%inclusion167 decks557 decks
11%synergy
Reliquary Tower
27%inclusion150 decks557 decks
-3%synergy
Witch's Cottage
26%inclusion147 decks557 decks
2%synergy
Nykthos, Shrine to Nyx
25%inclusion140 decks557 decks
-5%synergy
Urborg, Tomb of Yawgmoth
24%inclusion136 decks557 decks
-13%synergy
Three Tree City
23%inclusion112 decks490 decks
18%synergy
Mortuary Mire
19%inclusion104 decks557 decks
6%synergy
Phyrexian Tower
16%inclusion90 decks557 decks
-10%synergy
Castle Locthwain
12%inclusion67 decks557 decks
-5%synergy
Crypt of Agadeem
11%inclusion64 decks557 decks
0%synergy
War Room
11%inclusion63 decks557 decks
-5%synergy
Access Tunnel
10%inclusion56 decks557 decks
7%synergy
Shizo, Death's Storehouse
10%inclusion54 decks557 decks
0%synergy
Secret Tunnel
9.1%inclusion2 decks22 decks
8%synergy
Temple of the False God
8.1%inclusion45 decks557 decks
0%synergy
Susur Secundi, Void Altar
8.0%inclusion2 decks25 decks
1%synergy
Barren Moor
5.9%inclusion33 decks557 decks
-4%synergy
Minas Morgul, Dark Fortress
5.9%inclusion33 decks557 decks
3%synergy
Takenuma, Abandoned Mire
5.6%inclusion31 decks557 decks
-10%synergy
Mana Artifacts
Sol Ring
78%inclusion436 decks557 decks
-7%synergy
Arcane Signet
49%inclusion275 decks557 decks
-12%synergy
Glistening Sphere
34%inclusion189 decks557 decks
33%synergy
Patchwork Banner
29%inclusion137 decks475 decks
25%synergy
Charcoal Diamond
16%inclusion87 decks557 decks
-6%synergy
Mind Stone
14%inclusion78 decks557 decks
-15%synergy
White Lotus Tile
14%inclusion3 decks22 decks
13%synergy
Staff of Compleation
13%inclusion72 decks557 decks
11%synergy
Thought Vessel
11%inclusion61 decks557 decks
-14%synergy
Heraldic Banner
10%inclusion58 decks557 decks
5%synergy
Caged Sun
10%inclusion57 decks557 decks
-1%synergy
Commander's Sphere
6.3%inclusion35 decks557 decks
-2%synergy
Gauntlet of Power
6.3%inclusion35 decks557 decks
3%synergy
Throne of Eldraine
5.9%inclusion33 decks557 decks
-4%synergy
Nyx Lotus
5.7%inclusion32 decks557 decks
0%synergy
Firdoch Core
5.3%inclusion1 decks19 decks
5%synergy
Phyrexian Atlas
5.2%inclusion29 decks557 decks
5%synergy
Lands
Swamp
96%inclusion536 decks557 decks
1%synergy
Path of Ancestry
27%inclusion150 decks557 decks
22%synergy
Cavern of Souls
20%inclusion112 decks557 decks
13%synergy
Myriad Landscape
18%inclusion98 decks557 decks
-8%synergy
Big Apple, 3 a.m.
14%inclusion2 decks14 decks
12%synergy
Command Tower
12%inclusion67 decks557 decks
6%synergy
Malakir Rebirth
8.3%inclusion46 decks557 decks
-15%synergy
Fell the Profane
7.4%inclusion41 decks557 decks
-12%synergy
Evolving Wilds
5.6%inclusion31 decks557 decks
2%synergy
Escape Tunnel
5.0%inclusion28 decks557 decks
4%synergy
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