Descent Into Madness by OctalPlains

Format: Commander

Commander: Uldaros Theorix

Bracket: 4

DeckCheck Threat Index: 32

Deck overview

This Dimir control deck focuses on graveyard velocity, self-mill, and copying high-impact spells. In the early game, cheap enablers fill the graveyard with diverse permanent and spell types. On turn 6, casting Uldaros Theorix triggers an explosive entry ability that exiles cards from the graveyard and casts up to 6 mana value of copies without paying their mana costs. By copying Uldaros with clone effects like Phantasmal Image or deploying engines like Psychic Corrosion and Plan for All Outcomes, the deck rapidly generates massive card advantage and board presence. The deck closes the game on turn 8 through self-mill win conditions such as Laboratory Maniac and Fblthp, Impossibly Lost, mass opponent mill, or ultimate abilities from Jace, Reality Sculptor. While vulnerable to early graveyard exile, the deck possesses strong resilience through Praetor threats and reanimation.

Decklist (100 cards)

  • 1 Agna Qel'a
  • 1 Arcane Signet
  • 1 Blighted Fen
  • 1 Break Under Pressure
  • 1 Cephalid Vandal
  • 1 Chain of Vapor
  • 1 Choked Estuary
  • 1 Codex Shredder
  • 1 Command Tower
  • 1 Confusticate and Bebother
  • 1 Cruel Calculations
  • 1 Dark Matter Manipulator
  • 1 Deceptive Frostkite
  • 1 Desert of the Glorified
  • 1 Drown in the Loch
  • 1 Drowned Catacomb
  • 1 Extract from Darkness
  • 1 Eye of Jace
  • 1 Fblthp, Impossibly Lost
  • 1 Fellwar Stone
  • 1 Fetid Pools
  • 1 Glasspool Mimic // Glasspool Shore
  • 1 Grasping Tentacles
  • 1 Ichormoon Gauntlet
  • 1 Infinite Coursework
  • 1 Invasion of Amonkhet // Lazotep Convert
  • 1 Invasion of Vryn // Overloaded Mage-Ring
  • 12 Island
  • 1 Jace, Reality Sculptor
  • 1 Jin-Gitaxias // The Great Synthesis
  • 1 Karn's Bastion
  • 1 Kitsune's Technique
  • 1 Laboratory Maniac
  • 1 Lich's Relic
  • 1 Liliana of the Veil
  • 1 Liliana's Talent
  • 1 Loot, the Anomaly
  • 1 Mind Stone
  • 1 Mirrorhall Mimic // Ghastly Mimicry
  • 1 Murmuring Volume
  • 1 Mystic Sanctuary
  • 1 Northampton Farm
  • 1 Null Summoner
  • 1 Omni-Changeling
  • 1 Paradox Shaper // Omit Variables
  • 1 Peter Parker's Camera
  • 1 Phantasmal Image
  • 1 Phyrexian Metamorph
  • 1 Plan for All Outcomes
  • 1 Protege's Awakening
  • 1 Psychic Corrosion
  • 1 Reanimate
  • 1 Rewrite Regrets
  • 1 Sanctum Lurker
  • 1 Sheoldred // The True Scriptures
  • 1 Sheoldred's Edict
  • 1 Shipwreck Marsh
  • 1 Singularity Rupture
  • 1 Smallpox
  • 1 Sol Ring
  • 1 Solve for Disappointment
  • 1 Sunken Hollow
  • 1 Surveillance Room
  • 8 Swamp
  • 1 Teferi's Talent
  • 1 Temple of Deceit
  • 1 The Grey Havens
  • 1 The Master of Lake-town
  • 1 Theoretical Necromancer
  • 1 Theorix Annex
  • 1 Theorix Metamage // Omit Variables
  • 1 Uldaros Theorix
  • 1 Underground River
  • 1 Unsummon
  • 1 Variable Chaser // Arc of Fortune
  • 1 Watery Grave
  • 1 Waxen Shapethief
  • 1 Way of the Mind Sculptor
  • 1 Way of the Necromancer
  • 1 Windfall
  • 1 Winter, Tormented Loner
  • 1 Yuriko, Hope from the Shadows