One in a Mill-ion by DemonGoldfish

Format: Commander

Commander: Umbris, Fear Manifest

Bracket: 3

Deck overview

This Dimir Horror mill deck aims to empty opponents' libraries while growing Umbris, Fear Manifest into a lethal threat. Umbris exiles lands from opponents on each Horror or Nightmare entry and grows for each exiled card, turning incremental mill into commander damage. The main engine pairs steady mill enchantments and artifacts with explosive sorceries that mill half a library at once. Doomsday Excruciator sets up a one-spell kill by leaving six cards, while Zellix, Sanity Flayer converts milled creatures into Horror tokens. The deck controls the board with counters, removal, and heavy graveyard exile, grinding value until a mass-mill finisher ends the game.

Decklist (100 cards)

  • 1 Aboleth Spawn
  • 1 Altar of the Brood
  • 1 Ancient Cellarspawn
  • 1 Arcane Signet
  • 1 Ashiok, Dream Render
  • 1 Ashiok, Nightmare Weaver
  • 1 Boggart Trawler // Boggart Bog
  • 1 Bojuka Bog
  • 1 Brainstorm
  • 1 Breach the Multiverse
  • 1 Choked Estuary
  • 1 City of Brass
  • 1 Command Tower
  • 1 Counterspell
  • 1 Court of Cunning
  • 1 Crypt Incursion
  • 1 Cut Your Losses
  • 1 Dark Ritual
  • 1 Darkslick Shores
  • 1 Darkwater Catacombs
  • 1 Dauthi Voidwalker
  • 1 Didn't Say Please
  • 1 Dimir Signet
  • 1 Doomsday Excruciator
  • 1 Drown in Dreams
  • 1 Drown in the Loch
  • 1 Drowned Catacomb
  • 1 Fabled Passage
  • 1 Feed the Swarm
  • 1 Fellwar Stone
  • 1 Fractured Sanity
  • 1 Glimpse the Unthinkable
  • 1 Grazilaxx, Illithid Scholar
  • 1 Hullbreaker Horror
  • 11 Island
  • 1 Leyline of the Void
  • 1 Lightning Greaves
  • 1 Maddening Cacophony
  • 1 Memory Erosion
  • 1 Mesmeric Orb
  • 1 Millikin
  • 1 Mind Flayer
  • 1 Mind Funeral
  • 1 Mindcrank
  • 1 Negate
  • 1 Nephalia Drownyard
  • 1 Nihil Spellbomb
  • 1 Phyrexian Arena
  • 1 Phyrexian Obliterator
  • 1 Polluted Delta
  • 1 Ponder
  • 1 Psychic Corrosion
  • 1 Ravenous Chupacabra
  • 1 Riverchurn Monument
  • 1 Rogue's Passage
  • 1 Ruin Crab
  • 1 Serum Visions
  • 1 Shipwreck Marsh
  • 1 Silent Hallcreeper
  • 1 Singularity Rupture
  • 1 Sol Ring
  • 1 Soul-Guide Lantern
  • 1 Spellskite
  • 1 Stone of Erech
  • 1 Sunken Hollow
  • 1 Sunken Ruins
  • 6 Swamp
  • 1 Tainted Isle
  • 1 Talisman of Dominance
  • 1 Tasha's Hideous Laughter
  • 1 Terisian Mindbreaker
  • 1 The Mindskinner
  • 1 Thing in the Ice // Awoken Horror
  • 1 Thought Scour
  • 1 Thought Vessel
  • 1 Tormod's Crypt
  • 1 Tormod's Cryptkeeper
  • 1 Traumatize
  • 1 Umbris, Fear Manifest
  • 1 Undercity Sewers
  • 1 Underground River
  • 1 Watery Grave
  • 1 Wharf Infiltrator
  • 1 Whispersilk Cloak
  • 1 Zellix, Sanity Flayer