Jace tribal superfriends: the deck fills the board with Jace planeswalkers, pumps their loyalty with empower, proliferate and extra activations, and races toward devastating ultimates while pillow-fort effects and Jace, Multiverse Architect's attack tax keep them alive. The commander draws and filters every turn. Its −3 turns any spare creature or token, or a used-up planeswalker, into a fresh pull from a library dense with Jaces and light on creatures, so it usually hits another walker. Mass polymorph effects and cheap token makers extend that same dig into multiple free planeswalkers at once. How it wins: It pushes one or more Jaces to their ultimates, chiefly emptying its own library with Jace, Wielder of Mysteries in play, exiling opponents' libraries, chaining extra turns, or stealing creatures and swinging unblockable, with combat backup from unblockable Sentinels and token armies. Key roles: - Jace density and empower: Empower effects stack loyalty onto a Jace token and give the deck a planeswalker even before a real Jace lands, while beholding and Jace-matters payoffs reward the dense tribe (Theorist's Proxy, Jace's Machinations, Theorist's Sanctum). - Loyalty acceleration: Proliferate on every spell, a proliferate land and cantrip proliferation, together with double activations and repeated activations per turn, let several Jaces climb toward ultimates in a turn or two. The Chain Veil and extra activations also offset Carth's added +1 cost while it tutors walkers (Oath of Teferi, Ichormoon Gauntlet, Inexorable Tide). - Polymorph cheating: Creature tokens and cheap bodies serve as fodder for Jace, Multiverse Architect's −3, the mass-exile-and-reveal spells and the Staff. Because creature cards are few, those reveals spill past the deck's non-creature cards, and the creatures they do put in play include Carth, which digs straight for more walkers, and Spark Double, which can copy one (Mass Polymorph, Synthetic Destiny, Secure the Wastes). - Pillow fort defense: Attack taxes, hexproof and damage protection for Jaces, and a one-sided creature wipe that refunds loyalty protect the planeswalker board from combat (Propaganda, Deification, Overwrite the Multiverse). - Self-mill and library ultimates: Self-targeted mill and mass draw empty the library into a Wielder win, while 25-loyalty and −12 abilities exile opponents' libraries (Jace, Wielder of Mysteries, Jace, Memory Adept, Jace, Reality Sculptor). - Combat finishers: Unblockable Sentinels, mass unblockability, creature theft and token makers such as the Sharks provide a backup damage route (Jace, Arcane Strategist, Jace, Ingenious Mind-Mage, Shark Typhoon).

Jace, Multiverse Architect decklist

• The Theorist, Jace Beleren
• Jace, Reality Sculptor
• Jace, the Mind Sculptor
• Jace, Wielder of Mysteries
• Jace, Memory Adept
• Jace, Unraveler of Secrets
• Jace, Architect of Thought
• Jace Beleren
• Jace, Cunning Castaway
• Jace, Arcane Strategist
• Jace, Ingenious Mind-Mage
• Jace, the Living Guildpact
• Jace Reawakened
• Jace, the Perfected Mind
• Jace's Machinations
• Jace's Triumph
• Jace's Sentinel
• Theorist's Proxy
• Theorist's Sanctum
• Oath of Jace
• Oath of Teferi
• Ichormoon Gauntlet
• The Chain Veil
• Inexorable Tide
• Ripples of Potential
• Contentious Plan
• Spark Double
• Sol Ring
• Arcane Signet
• Fellwar Stone
• Chromatic Lantern
• Talisman of Progress
• Talisman of Dominance
• Talisman of Indulgence
• Mind Stone
• Thought Vessel
• Swords to Plowshares
• Path to Exile
• Dovin's Veto
• Swan Song
• Despark
• Stroke of Midnight
• Anguished Unmaking
• Propaganda
• Deification
• Overwrite the Multiverse
• Mass Polymorph
• Synthetic Destiny
• Command Tower
• Exotic Orchard
• Raffine's Tower
• Raugrin Triome
• Xander's Lounge
• Reflecting Pool
• Turbulent Shore
• Turbulent Wetlands
• Turbulent Crater
• Karn's Bastion
• Prairie Stream
• 2× Plains
• 8× Island
• 3× Swamp
• 7× Mountain
• Glacial Fortress
• Drowned Catacomb
• Adarkar Wastes
• Underground River
• Midnight Clock
• Dimir Signet
• Way of the Pyromancer
• Rowan's Talent
• Volt Charge
• Repeated Reverberation
• Sulfur Falls
• Shipwreck Marsh
• Talisman of Creativity
• Drown in Ichor
• Sanctum Lurker
• Tekuthal, Inquiry Dominus
• Lae'zel, Vlaakith's Champion
• Flux Channeler
• Jace's Projection
• Mila, Crafty Companion // Lukka, Wayward Bonder