Polymorph shenanigans by Rex_Yaldabaoth

Format: Commander

Commander: Jace, Multiverse Architect

Bracket: 4

DeckCheck Threat Index: 45

Deck overview

This deck is a high-powered 4-color Polymorph strategy helmed by Jace, Multiverse Architect. The primary game plan revolves around deploying inexpensive token producers on early turns, ramping with 2-CMC artifacts, and casting Jace on Turn 4. Jace's −3 loyalty ability exiles a disposable token to reveal and cheat massive, game-ending threats directly onto the battlefield without paying their mana costs. The threat suite consists of punishing Praetors, Demons, and Dragons like Jin-Gitaxias, Core Augur, Archfiend of Despair, and Terror of the Peaks, alongside defensive cornerstones such as Avacyn, Angel of Hope and Serra's Emissary. Supported by robust card selection, redundant mass-polymorph spells, and flexible removal suites, the deck quickly transitions from early setup to an overwhelming board state, locking opponents out of resources while finishing the game through lethal combat and trigger damage by Turn 7.

Decklist (100 cards)

  • 1 Aetherflux Reservoir
  • 1 Anger
  • 1 Arcane Signet
  • 1 Archfiend of Despair
  • 1 Archon of Cruelty
  • 1 Ardyn, the Usurper
  • 1 Avacyn, Angel of Hope
  • 1 Azorius Signet
  • 1 Bitterblossom
  • 1 Blood Crypt
  • 1 Bloodstained Mire
  • 1 Brainstorm
  • 1 Brainsurge
  • 1 Caves of Koilos
  • 1 Chromatic Lantern
  • 1 Command Tower
  • 1 Contaminated Landscape
  • 1 Cursed Mirror
  • 1 Darksteel Angel
  • 1 Despark
  • 1 Dimir Signet
  • 1 Displacer Kitten
  • 1 Dreadhorde Invasion
  • 1 Drowned Catacomb
  • 1 Exotic Orchard
  • 1 Fabled Passage
  • 1 Fatehold Charm
  • 1 Fellwar Stone
  • 1 Fetid Heath
  • 1 Flawless Maneuver
  • 1 Ginger, Queen of Sweets
  • 1 Glacial Fortress
  • 1 Glimpse the Impossible
  • 1 Godless Shrine
  • 1 Grand Crescendo
  • 1 Hallowed Fountain
  • 3 Island
  • 1 Isolated Chapel
  • 1 Izzet Signet
  • 1 Jace, Multiverse Architect
  • 1 Jin-Gitaxias, Core Augur
  • 1 Jin-Gitaxias, Progress Tyrant
  • 1 Kher Keep
  • 1 Lingering Souls
  • 1 Lotus Field
  • 1 Martial Coup
  • 1 Mass Polymorph
  • 1 Memnarch, the Warden
  • 2 Mountain
  • 1 Myr Battlesphere
  • 1 Mystic Gate
  • 1 Nissa, Leyline Tamer
  • 1 Niv-Mizzet, Ghost Counsel
  • 1 Ob Nixilis, the Ascended
  • 1 Occult Epiphany
  • 1 Overlord of the Mistmoors
  • 1 Path of Ancestry
  • 1 Perilous Landscape
  • 2 Plains
  • 1 Plan for All Outcomes
  • 1 Prairie Stream
  • 1 Proteus Staff
  • 1 Radiant Summit
  • 1 Rakdos Signet
  • 1 Reflecting Pool
  • 1 Restless Anchorage
  • 1 Restless Spire
  • 1 Rune-Scarred Demon
  • 1 Sacred Foundry
  • 1 Secure the Wastes
  • 1 Serra's Emissary
  • 1 Sheoldred, the Apocalypse
  • 1 Skrelv's Hive
  • 1 Sol Ring
  • 1 Steam Vents
  • 1 Stroke of Midnight
  • 1 Sulfurous Springs
  • 1 Summon: Bahamut
  • 1 Sunfall
  • 1 Sunken Ruins
  • 2 Swamp
  • 1 Swords to Plowshares
  • 1 Synthetic Destiny
  • 1 Talisman of Creativity
  • 1 Talisman of Dominance
  • 1 Talisman of Indulgence
  • 1 Talisman of Progress
  • 1 Tempt with Bunnies
  • 1 Terror of the Peaks
  • 1 Thespian's Stage
  • 1 Underground River
  • 1 Watery Grave
  • 1 Whirlwind of Thought
  • 1 White Sun's Twilight
  • 1 Windcrag Siege