Jace Polymorph Upgrade by Matthewsteel

Format: Commander

Commander: Jace, Multiverse Architect

Bracket: 3

DeckCheck Threat Index: 38

Deck overview

This deck is an optimized four-color Polymorph control strategy commanded by Jace, Multiverse Architect. The deck omits small utility creatures entirely, dedicating its nonland slots to cheap token generators, efficient ramp, flexible removal, and eighteen game-ending bombs. Early turns establish mana acceleration through two-mana artifacts and produce noncreature token fodder via permanents like Dreadhorde Invasion, Skrelv's Hive, and Staff of the Storyteller. On Turn 4, casting Jace allows an immediate activation of his -3 loyalty ability, exiling a disposable token to polymorph directly into massive threats like Archon of Cruelty, Serra's Emissary, or Archfiend of Despair. Jace's passive combat tax deters attackers, while his +1 ability tucks naturally drawn high-cost creatures back into the library. Backup cheat spells like Mass Polymorph and Proteus Staff ensure redundant threat deployment even if Jace is answered. The deck closes games around Turn 7 by overwhelming the board with evasive combat damage and devastating combat triggers.

Decklist (100 cards)

• 1 Akroma, Angel of Fury
• 1 Arcane Signet
• 1 Archfiend of Despair
• 1 Archon of Cruelty
• 1 Avacyn, Angel of Horror
• 1 Azorius Signet
• 1 Battlefield Forge
• 1 Brainstorm
• 1 Brainsurge
• 1 Caves of Koilos
• 1 Chromatic Lantern
• 1 Clifftop Retreat
• 1 Command Tower
• 1 Contaminated Landscape
• 1 Currency Converter
• 1 Cursed Mirror
• 1 Dack Fayden, Helping Hand
• 1 Darksteel Angel
• 1 Despark
• 1 Dimir Signet
• 1 Dreadhorde Invasion
• 1 Drowned Catacomb
• 1 Elspeth, Sun's Champion
• 1 Exotic Orchard
• 1 Fabled Passage
• 1 Fact or Fiction
• 1 Fatehold Charm
• 1 Fellwar Stone
• 1 Fetid Heath
• 1 Flawless Maneuver
• 1 Ginger, Queen of Sweets
• 1 Glacial Fortress
• 1 Grand Crescendo
• 3 Island
• 1 Isolated Chapel
• 1 Izzet Signet
• 1 Jace, Multiverse Architect
• 1 Jhoira, Weatherlight Corsair
• 1 Kher Keep
• 1 Lingering Souls
• 1 Martial Coup
• 1 Mass Polymorph
• 1 Memnarch, the Warden
• 2 Mountain
• 1 Mystic Gate
• 1 Nissa, Leyline Tamer
• 1 Niv-Mizzet, Ghost Counsel
• 1 Ob Nixilis, the Ascended
• 1 Occult Epiphany
• 1 Omnath, Locus of the Void
• 1 Overlord of the Mistmoors
• 1 Path of Ancestry
• 1 Path to Exile
• 1 Perilous Landscape
• 4 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 Secure the Wastes
• 1 Serra's Emissary
• 1 Shark Typhoon
• 1 Shivan Reef
• 1 Skrelv's Hive
• 1 Sol Ring
• 1 Staff of the Storyteller
• 1 Stroke of Midnight
• 1 Sulfur Falls
• 1 Sulfurous Springs
• 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 Tamiyo, Upriser Crowned
• 1 Teferi's Reproach
• 1 The Ur-Sphinx
• 1 Turbulent Crater
• 1 Turbulent Shore
• 1 Turbulent Wetlands
• 1 Underground River
• 1 Venser, Fervent Forger
• 1 Whirlwind of Thought
• 1 White Sun's Twilight
• 1 Windcrag Siege