rat king by user1288430

Format: Commander

Commander: Karumonix, the Rat King

Bracket: 2

DeckCheck Threat Index: 31

Deck overview

This mono-black kindred aggro deck uses Karumonix, the Rat King to turn a swarm of cheap Rats into lethal toxic threats. Karumonix sits in the command zone, providing card selection on entry and granting toxic 1 to all Rats. The deck establishes early board presence with low-cost creatures like Changeling Outcast and Blightbelly Rat, then deploys powerful tribal multipliers such as Ashcoat of the Shadow Swarm and Marrow-Gnawer. Because toxic only requires ten poison counters rather than forty life per player, the clock accelerates rapidly once evasion like menace and fear is active. Proliferate tools like Contagion Engine and Karn's Bastion ensure that once poison is applied, opponents remain on an unavoidable timer. Asymmetric sweepers like Crippling Fear clear opposing blockers while leaving your board intact. The deck trades stack interaction for redundant aggression and recovery.

Decklist (100 cards)

  • 1 Access Tunnel
  • 1 Arcane Signet
  • 1 Ashcoat of the Shadow Swarm
  • 1 Banner of Kinship
  • 1 Barren Moor
  • 1 Blightbelly Rat
  • 1 Burglar Rat
  • 1 Changeling Outcast
  • 1 Charcoal Diamond
  • 1 Chittering Skitterling
  • 1 Chittering Witch
  • 1 Contagion Clasp
  • 1 Contagion Engine
  • 1 Crippling Fear
  • 1 Decree of Pain
  • 1 Demolition Field
  • 1 Drainpipe Vermin
  • 1 Engine Rat
  • 1 Feed the Cycle
  • 1 Feed the Infection
  • 1 Feed the Swarm
  • 1 Fell the Profane // Fell Mire
  • 1 Firdoch Core
  • 1 Graveshifter
  • 1 Haunting Voyage
  • 1 Heraldic Banner
  • 1 Ichor Rats
  • 1 Infectious Inquiry
  • 1 Infernal Idol
  • 1 Innocuous Rat
  • 1 Jet Medallion
  • 1 Karn's Bastion
  • 1 Karumonix, the Rat King
  • 1 Kindred Dominance
  • 1 Lord Skitter's Butcher
  • 1 Lord Skitter, Sewer King
  • 1 Malakir Rebirth // Malakir Mire
  • 1 Marrow-Gnawer
  • 1 Mind Stone
  • 1 Mortuary Mire
  • 1 Nezumi Cutthroat
  • 1 Nezumi Informant
  • 1 Ogre Slumlord
  • 1 Pact of the Serpent
  • 1 Patchwork Banner
  • 1 Phyrexian Reclamation
  • 1 Phyrexian Tower
  • 1 Piper of the Swarm
  • 1 Plumb the Forbidden
  • 1 Rancid Rats
  • 1 Rat King, Pale Piper
  • 1 Ravenous Rats
  • 1 Return from Extinction
  • 1 Revenge of the Rats
  • 1 Rogue's Passage
  • 1 Ruin Rat
  • 1 Ruthless Radrat
  • 1 Scavenger Grounds
  • 1 Sewer Rats
  • 1 Skullclamp
  • 1 Sol Ring
  • 1 Solemn Simulacrum
  • 1 Splinter, the Mentor
  • 26 Swamp
  • 1 Swarmyard
  • 1 Swift Demise
  • 1 Tangled Colony
  • 1 Throat Slitter
  • 1 Throne of the High City
  • 1 Twisted Sewer-Witch
  • 1 Typhoid Rats
  • 1 Undercity Dire Rat
  • 1 Vat Emergence
  • 1 Voracious Vermin
  • 1 Vraska's Fall