Karumonix, the Rat King (Commander) - Expensive Optimized

Karumonix, the Rat King
Rank #385
7decks
As CommanderAs CardAverage DeckDecks
Bracket
All12345
Budget
Any$$$$
Background image for Building Rat Typal With Marrow-Gnawer
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.
Deck Filters
Cardsphere
Archidekt
Commander Spellbook
Moxfield
Scryfall
MTGStocks
New Cards
High Synergy Cards
Top Cards
Game Changers
Creatures
Instants
Sorceries
Utility Artifacts
Enchantments
Planeswalkers
Utility Lands
Mana Artifacts
Lands
Back to Top
Rat King, Verminister
50%inclusion1 decks2 decks
47%synergy
High Synergy Cards
Swarmyard
100%inclusion7 decks7 decks
94%synergy
Marrow-Gnawer
86%inclusion6 decks7 decks
82%synergy
Ashcoat of the Shadow Swarm
86%inclusion6 decks7 decks
82%synergy
Piper of the Swarm
86%inclusion6 decks7 decks
79%synergy
Ichor Rats
71%inclusion5 decks7 decks
68%synergy
Blightbelly Rat
71%inclusion5 decks7 decks
68%synergy
Thrumming Stone
71%inclusion5 decks7 decks
67%synergy
Rat Colony
71%inclusion5 decks7 decks
66%synergy
Urborg, Tomb of Yawgmoth
100%inclusion7 decks7 decks
62%synergy
Ogre Slumlord
71%inclusion5 decks7 decks
61%synergy
Top Cards
Dark Ritual
100%inclusion7 decks7 decks
33%synergy
Deadly Rollick
86%inclusion6 decks7 decks
61%synergy
Grim Tutor
71%inclusion5 decks7 decks
60%synergy
Phyresis Outbreak
57%inclusion4 decks7 decks
55%synergy
Bontu's Monument
57%inclusion4 decks7 decks
29%synergy
Drown in Ichor
57%inclusion4 decks7 decks
53%synergy
Phyrexian Arena
57%inclusion4 decks7 decks
17%synergy
Diabolic Intent
57%inclusion4 decks7 decks
42%synergy
Jet Medallion
57%inclusion4 decks7 decks
-5%synergy
Vraska, Betrayal's Sting
57%inclusion4 decks7 decks
55%synergy
Game Changers
Demonic Tutor
100%inclusion7 decks7 decks
73%synergy
Vampiric Tutor
86%inclusion6 decks7 decks
65%synergy
Imperial Seal
86%inclusion6 decks7 decks
79%synergy
Chrome Mox
71%inclusion5 decks7 decks
65%synergy
Bolas's Citadel
71%inclusion5 decks7 decks
43%synergy
Mana Vault
57%inclusion4 decks7 decks
51%synergy
Mox Diamond
57%inclusion4 decks7 decks
53%synergy
Ancient Tomb
57%inclusion4 decks7 decks
45%synergy
Ad Nauseam
29%inclusion2 decks7 decks
26%synergy
Opposition Agent
29%inclusion2 decks7 decks
19%synergy
Creatures
Ratcatcher
57%inclusion4 decks7 decks
54%synergy
Lord Skitter, Sewer King
43%inclusion3 decks7 decks
35%synergy
Ayara, First of Locthwain
43%inclusion3 decks7 decks
17%synergy
Pack Rat
43%inclusion3 decks7 decks
37%synergy
Nashi, Moon Sage's Scion
43%inclusion3 decks7 decks
39%synergy
Lord Skitter's Butcher
29%inclusion2 decks7 decks
25%synergy
Chittering Witch
29%inclusion2 decks7 decks
24%synergy
Septic Rats
29%inclusion2 decks7 decks
27%synergy
Dauthi Voidwalker
29%inclusion2 decks7 decks
13%synergy
Tangled Colony
29%inclusion2 decks7 decks
25%synergy
Locust Miser
29%inclusion2 decks7 decks
27%synergy
Gnat Miser
29%inclusion2 decks7 decks
26%synergy
Relentless Rats
14%inclusion1 decks7 decks
13%synergy
Burglar Rat
14%inclusion1 decks7 decks
3%synergy
Blood Artist
14%inclusion1 decks7 decks
-17%synergy
Crashing Drawbridge
14%inclusion1 decks7 decks
12%synergy
Roaming Throne
14%inclusion1 decks7 decks
11%synergy
Zulaport Cutthroat
14%inclusion1 decks7 decks
-9%synergy
Persistent Marshstalker
14%inclusion1 decks7 decks
11%synergy
Mogis's Marauder
14%inclusion1 decks7 decks
13%synergy
Yawgmoth, Thran Physician
14%inclusion1 decks7 decks
4%synergy
Crypt Ghast
14%inclusion1 decks7 decks
-33%synergy
Wave of Rats
14%inclusion1 decks7 decks
12%synergy
Orcish Bowmasters
14%inclusion1 decks7 decks
1%synergy
Old Flitterfang
14%inclusion1 decks7 decks
13%synergy
Crypt Rats
14%inclusion1 decks7 decks
10%synergy
Nezumi Graverobber
14%inclusion1 decks7 decks
13%synergy
Ruthless Radrat
14%inclusion1 decks7 decks
13%synergy
Sheoldred, the Apocalypse
14%inclusion1 decks7 decks
0%synergy
Ophiomancer
14%inclusion1 decks7 decks
-2%synergy
Throat Slitter
14%inclusion1 decks7 decks
12%synergy
Ink-Eyes, Servant of Oni
14%inclusion1 decks7 decks
11%synergy
Voracious Vermin
14%inclusion1 decks7 decks
11%synergy
Twisted Sewer-Witch
14%inclusion1 decks7 decks
13%synergy
Rancid Rats
14%inclusion1 decks7 decks
12%synergy
Hoarding Broodlord
14%inclusion1 decks7 decks
10%synergy
Defiler of Flesh
14%inclusion1 decks7 decks
10%synergy
K'rrik, Son of Yawgmoth
14%inclusion1 decks7 decks
-5%synergy
Skithiryx, the Blight Dragon
14%inclusion1 decks7 decks
13%synergy
Instants
Vraska's Fall
43%inclusion3 decks7 decks
39%synergy
Cabal Ritual
43%inclusion3 decks7 decks
25%synergy
Culling the Weak
43%inclusion3 decks7 decks
27%synergy
Whisper of the Dross
29%inclusion2 decks7 decks
26%synergy
Village Rites
29%inclusion2 decks7 decks
3%synergy
Imp's Mischief
14%inclusion1 decks7 decks
-10%synergy
Defile
14%inclusion1 decks7 decks
-22%synergy
Dismember
14%inclusion1 decks7 decks
4%synergy
Entomb
14%inclusion1 decks7 decks
2%synergy
Deadly Dispute
14%inclusion1 decks7 decks
-11%synergy
Murder
14%inclusion1 decks7 decks
4%synergy
Infernal Grasp
14%inclusion1 decks7 decks
-11%synergy
Corrupted Conviction
14%inclusion1 decks7 decks
2%synergy
Saw in Half
14%inclusion1 decks7 decks
6%synergy
Nasty End
14%inclusion1 decks7 decks
11%synergy
Tragic Slip
14%inclusion1 decks7 decks
-6%synergy
Force of Despair
14%inclusion1 decks7 decks
7%synergy
Go for the Throat
14%inclusion1 decks7 decks
-9%synergy
Tainted Strike
14%inclusion1 decks7 decks
11%synergy
Foul-Tongue Shriek
14%inclusion1 decks7 decks
12%synergy
Malakir Rebirth
14%inclusion1 decks7 decks
-9%synergy
Sorceries
Day of Black Sun
50%inclusion1 decks2 decks
48%synergy
Bloodline Bidding
50%inclusion1 decks2 decks
45%synergy
Reanimate
43%inclusion3 decks7 decks
3%synergy
Toxic Deluge
43%inclusion3 decks7 decks
6%synergy
Infectious Inquiry
29%inclusion2 decks7 decks
26%synergy
Damnation
29%inclusion2 decks7 decks
8%synergy
Plague of Vermin
29%inclusion2 decks7 decks
26%synergy
Feed the Swarm
29%inclusion2 decks7 decks
-22%synergy
Kindred Dominance
29%inclusion2 decks7 decks
24%synergy
Black Sun's Zenith
14%inclusion1 decks7 decks
9%synergy
Diabolic Tutor
14%inclusion1 decks7 decks
0%synergy
Victimize
14%inclusion1 decks7 decks
-12%synergy
Revenge of the Rats
14%inclusion1 decks7 decks
11%synergy
Read the Bones
14%inclusion1 decks7 decks
-3%synergy
Mutilate
14%inclusion1 decks7 decks
-3%synergy
Secret Salvage
14%inclusion1 decks7 decks
13%synergy
Forever Young
14%inclusion1 decks7 decks
13%synergy
Yawgmoth's Will
14%inclusion1 decks7 decks
11%synergy
Feed the Infection
14%inclusion1 decks7 decks
14%synergy
Sinkhole
14%inclusion1 decks7 decks
14%synergy
Living Death
14%inclusion1 decks7 decks
4%synergy
Rise of the Dark Realms
14%inclusion1 decks7 decks
1%synergy
Night's Whisper
14%inclusion1 decks7 decks
-10%synergy
Caress of Phyrexia
14%inclusion1 decks7 decks
14%synergy
Sign in Blood
14%inclusion1 decks7 decks
-21%synergy
Utility Artifacts
Chronicle of Victory
50%inclusion1 decks2 decks
47%synergy
Sensei's Divining Top
43%inclusion3 decks7 decks
35%synergy
Lightning Greaves
43%inclusion3 decks7 decks
9%synergy
Aetherflux Reservoir
43%inclusion3 decks7 decks
33%synergy
Defense Grid
29%inclusion2 decks7 decks
26%synergy
Swiftfoot Boots
29%inclusion2 decks7 decks
-3%synergy
Thornbite Staff
29%inclusion2 decks7 decks
26%synergy
Contagion Engine
29%inclusion2 decks7 decks
27%synergy
The One Ring
29%inclusion2 decks7 decks
19%synergy
Herald's Horn
29%inclusion2 decks7 decks
23%synergy
The Darkness Crystal
20%inclusion1 decks5 decks
0%synergy
Oblivion Stone
14%inclusion1 decks7 decks
14%synergy
Shadowspear
14%inclusion1 decks7 decks
10%synergy
Altar of the Brood
14%inclusion1 decks7 decks
12%synergy
Sword of the Paruns
14%inclusion1 decks7 decks
14%synergy
Cloud Key
14%inclusion1 decks7 decks
13%synergy
Ashnod's Altar
14%inclusion1 decks7 decks
-5%synergy
Skullclamp
14%inclusion1 decks7 decks
-8%synergy
Banner of Kinship
14%inclusion1 decks7 decks
12%synergy
Vanquisher's Banner
14%inclusion1 decks7 decks
10%synergy
Tarrian's Journal
14%inclusion1 decks7 decks
13%synergy
Grafted Exoskeleton
14%inclusion1 decks7 decks
13%synergy
Wayfarer's Bauble
14%inclusion1 decks7 decks
-1%synergy
Contagion Clasp
14%inclusion1 decks7 decks
12%synergy
Coat of Arms
14%inclusion1 decks7 decks
12%synergy
Nim Deathmantle
14%inclusion1 decks7 decks
11%synergy
Door of Destinies
14%inclusion1 decks7 decks
12%synergy
Basilisk Collar
14%inclusion1 decks7 decks
11%synergy
Enchantments
Animate Dead
43%inclusion3 decks7 decks
26%synergy
The Meathook Massacre
43%inclusion3 decks7 decks
26%synergy
Black Market
29%inclusion2 decks7 decks
8%synergy
Grave Pact
29%inclusion2 decks7 decks
9%synergy
Necrogen Communion
29%inclusion2 decks7 decks
27%synergy
Contamination
29%inclusion2 decks7 decks
25%synergy
Black Market Connections
29%inclusion2 decks7 decks
5%synergy
Cover of Darkness
29%inclusion2 decks7 decks
26%synergy
Oversold Cemetery
29%inclusion2 decks7 decks
23%synergy
Haunted One
14%inclusion1 decks7 decks
12%synergy
Tribute to Horobi
14%inclusion1 decks7 decks
13%synergy
Carnival of Souls
14%inclusion1 decks7 decks
13%synergy
Dictate of Erebos
14%inclusion1 decks7 decks
3%synergy
Koskun Falls
14%inclusion1 decks7 decks
14%synergy
Leyline of the Void
14%inclusion1 decks7 decks
12%synergy
Bitterblossom
14%inclusion1 decks7 decks
1%synergy
Case of the Stashed Skeleton
14%inclusion1 decks7 decks
12%synergy
Phyresis
14%inclusion1 decks7 decks
12%synergy
No Mercy
14%inclusion1 decks7 decks
7%synergy
Bad Moon
14%inclusion1 decks7 decks
11%synergy
Planeswalkers
Karn, the Great Creator
14%inclusion1 decks7 decks
14%synergy
Ugin, the Spirit Dragon
14%inclusion1 decks7 decks
14%synergy
Utility Lands
Cabal Coffers
86%inclusion6 decks7 decks
31%synergy
Bojuka Bog
71%inclusion5 decks7 decks
25%synergy
Phyrexian Tower
71%inclusion5 decks7 decks
46%synergy
Mudflat Village
57%inclusion4 decks7 decks
54%synergy
Nykthos, Shrine to Nyx
57%inclusion4 decks7 decks
27%synergy
Karn's Bastion
57%inclusion4 decks7 decks
53%synergy
Realm of Koh
50%inclusion1 decks2 decks
47%synergy
Volrath's Stronghold
43%inclusion3 decks7 decks
39%synergy
Three Tree City
43%inclusion3 decks7 decks
38%synergy
Takenuma, Abandoned Mire
29%inclusion2 decks7 decks
13%synergy
Strip Mine
29%inclusion2 decks7 decks
26%synergy
Vesuva
14%inclusion1 decks7 decks
11%synergy
Witch's Cottage
14%inclusion1 decks7 decks
-10%synergy
Emergence Zone
14%inclusion1 decks7 decks
11%synergy
Lake of the Dead
14%inclusion1 decks7 decks
9%synergy
Castle Locthwain
14%inclusion1 decks7 decks
-3%synergy
Mortuary Mire
14%inclusion1 decks7 decks
1%synergy
Boseiju, Who Shelters All
14%inclusion1 decks7 decks
13%synergy
Blast Zone
14%inclusion1 decks7 decks
12%synergy
Mutavault
14%inclusion1 decks7 decks
14%synergy
Field of the Dead
14%inclusion1 decks7 decks
13%synergy
Cabal Stronghold
14%inclusion1 decks7 decks
-20%synergy
Wasteland
14%inclusion1 decks7 decks
13%synergy
Urza's Saga
14%inclusion1 decks7 decks
6%synergy
Reliquary Tower
14%inclusion1 decks7 decks
-16%synergy
Mana Artifacts
Sol Ring
86%inclusion6 decks7 decks
0%synergy
Arcane Signet
57%inclusion4 decks7 decks
-5%synergy
Lotus Petal
29%inclusion2 decks7 decks
21%synergy
Patchwork Banner
14%inclusion1 decks7 decks
10%synergy
Mox Opal
14%inclusion1 decks7 decks
11%synergy
Caged Sun
14%inclusion1 decks7 decks
3%synergy
Glistening Sphere
14%inclusion1 decks7 decks
13%synergy
Throne of Eldraine
14%inclusion1 decks7 decks
4%synergy
Mox Amber
14%inclusion1 decks7 decks
10%synergy
Staff of Compleation
14%inclusion1 decks7 decks
13%synergy
Grim Monolith
14%inclusion1 decks7 decks
12%synergy
Lands
Swamp
86%inclusion6 decks7 decks
-9%synergy
Cavern of Souls
57%inclusion4 decks7 decks
50%synergy
Gemstone Caverns
29%inclusion2 decks7 decks
24%synergy
Path of Ancestry
14%inclusion1 decks7 decks
9%synergy
Exotic Orchard
14%inclusion1 decks7 decks
13%synergy
Reflecting Pool
14%inclusion1 decks7 decks
14%synergy
Command Tower
14%inclusion1 decks7 decks
9%synergy
Unclaimed Territory
14%inclusion1 decks7 decks
14%synergy
Malakir Rebirth
14%inclusion1 decks7 decks
-9%synergy
Snow-Covered Swamp
14%inclusion1 decks7 decks
8%synergy
About UsContactPrivacy PolicyTerms of Service
Space Cow MediaArchidektCardsphereCommander SpellbookFABRECSpellvoid
Space Cow MediaArchidektCommander's Herald
Commander SpellbookFABRECSpellvoid
EDHREC is unofficial Fan Content permitted under the Fan Content Policy. Not approved/endorsed by Wizards. Portions of the materials used are property of Wizards of the Coast. ©Wizards of the Coast LLC.
next@15 test