Jace, Multiverse Architect is a "polymorph" deck. It runs few creatures, all of them huge high-mana-value bombs, alongside a large suite of cheap token makers. Jace's −3 and the deck's mass-polymorph spells turn a throwaway token into a random fatty off the top of the library. Jace's +1 draws and filters, sending excess big creatures to the bottom, and its combat tax deters attacks on him. Mana rocks, card selection and token-based wraths that leave a board behind keep the deck alive until the swaps land. How it wins: It cheats game-ending creatures such as Archon of Cruelty, Archfiend of Despair, The Ur-Sphinx and Avacyn into play repeatedly by exiling cheap tokens, then attacks with the oversized flyers and their enter/attack triggers. Key roles: - Polymorph engine: Jace, Multiverse Architect's −3 and the mass exile-and-reveal effects trade tokens for random top-of-library creatures. A creature-light list keeps every hit a bomb, and the draw-and-bottom filtering reinforces this (Mass Polymorph, Synthetic Destiny, Proteus Staff). - Token fodder: Cheap and X-cost spells and permanents create many bodies to feed the swaps. Some also draw cards whenever tokens appear or noncreature spells are cast, chaining value through the spell-heavy list (Secure the Wastes, Shark Typhoon, Staff of the Storyteller). - Self-serving board wipes: Sweepers that also create tokens or incubators reset opposing boards while leaving polymorph fodder or a growing army behind. Indestructibility effects let the deck keep its own creatures through combat or wipes (Martial Coup, Sunfall, Grand Crescendo). - Bomb payloads: Enter and attack triggers on the cheated creatures provide removal, card draw, drain and extra free creatures. Doubled attack triggers multiply their impact (Archon of Cruelty, Jhoira, Weatherlight Corsair, Windcrag Siege). - Planeswalker and noncreature support: Effects that empower Jace or reward noncreature spells add loyalty, cards and tokens while Jace stays protected by the attack tax and blockers (Plan for All Outcomes, Fatehold Charm, Whirlwind of Thought). - Ramp and fixing: A dense rock package accelerates into the four-color commander and the hard-cast seven- to ten-drops when a polymorph isn't available (Sol Ring, Chromatic Lantern, Arcane Signet).

Jace, Multiverse Architect decklist

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