Superfriends: the deck drops a wide spread of planeswalkers and then piles loyalty onto them. Tam discounts each walker by one and, for five colors, proliferates once per distinct planeswalker type. Empower Jace effects, the Way of enchantments and loyalty-trigger creatures keep the counters climbing, and a crew of small creatures and cheap interaction protects the walkers until their ultimates or their repeated damage and drain abilities finish the table. How it wins: Walkers are pushed to their ultimates through proliferate and stacked loyalty, Nicol Bolas's seven damage to each opponent or Jace, Reality Sculptor's library exile being the most direct, while repeated drain and ping abilities wear opponents down. Key roles: - Planeswalker type diversity: Tam proliferates once for each distinct type among the walkers, so the deck runs many different families (Chandra, Jace, Garruk, Gideon, Kaya, Liliana, Bolas, Nissa, Teferi, Tezzeret) to scale the multi-proliferate toward ultimates. (Tam, the Possibility, Nicol Bolas, the Deceiver, Kaya, Intangible Slayer) - Empower Jace token engine: many spells and enchantments create or grow a Jace token, which counts as a planeswalker type for Tam, turns on the "control a planeswalker" lands, and piles up loyalty, including toward the twenty-five-counter Jace lock. (Way of the Wildspeaker, Protege's Awakening, Jace's Machinations) - Loyalty-granting enchantments and abilities: these give every walker extra loyalty from lifegain or creature deaths, or hand out new damage, token or drain abilities, and one stops walkers from dying at zero loyalty so they can minus freely. (Way of the Mentor, Way of the Paradox, Sanctum Lurker) - Lifegain-to-loyalty loop: lifelink creatures, life-gaining lands and attack drains feed the mentor enchantment, and loyalty activations themselves gain life, so each turn of activations snowballs counters. (Way of the Mentor, Screeching Soulbreaker, Blessed Ghoul) - Walker defense and tutors: small blockers, attack limits, hexproof flash, stun and removal keep the walkers alive, while the named-card tutors and recursion find or return key walkers. (Tomik, Orzhov Lawmage, Teyo, Lightshield Expert, Visage of Bolas) - Noncombat damage amplification: pinging walker abilities and burn get +1 per source, and opponents' loyalty activations get punished, which speeds up the incremental damage kill. (Tomik, Izzet Sparkmage, Chandra, the Firebrand, Gideon the Oathless)

Tam, the Possibility decklist

• Chandra, Chill of Compliance
• Chandra, Torch of Defiance
• Chandra, the Firebrand
• Garruk, Cursed Huntsman
• Gideon, Martial Paragon
• Jace, Memory Adept
• Jace, Reality Sculptor
• Kaya, Intangible Slayer
• Liliana, Death Wielder
• Nicol Bolas, the Deceiver
• Nissa, Nature's Artisan
• Teferi, Who Slows the Sunset
• Tezzeret, Betrayer of Flesh
• Blessed Ghoul
• Fblthp, Impossibly Lost
• Ghalta the Immovable
• Gideon the Oathless
• Inspired Tethermage
• Rescue Girl, First Responder
• Sanctum Lurker
• Screeching Soulbreaker
• Teyo, Lightshield Expert
• Thalia, the Survivor
• Tomik, Izzet Sparkmage
• Tomik, Orzhov Lawmage
• Arcane Signet
• Gilded Lotus
• Medic's Kitesail
• Mind Stone
• Sol Ring
• Thought Vessel
• Visage of Bolas
• Compel Brutality
• Icy Reception
• Jace's Machinations
• Multiply by Zero
• Perfected Theory
• Prophesied End
• Stingerquill Charm
• Tethermage's Advantage
• Twinned Vision
• Unsummon
• Artifist Acumen
• Cast Away Doubt
• Generous Revival
• Liliana's Influence
• Protege's Awakening
• Rewrite Regrets
• Stinging Vitriol
• Tam's Resistance
• Twisted Fates
• Verdant Crescendo
• Ferocity of the Hunt
• Gideon's Resolve
• Infinite Coursework
• Way of the Mentor
• Way of the Necromancer
• Way of the Paradox
• Way of the Warlord
• Way of the Wildspeaker
• Akoum Refuge
• Command Tower
• Dedicated Commons
• Deserted Beach
• Evolving Wilds
• Exotic Orchard
• 3× Forest
• Formidable Commons
• Glacial Fortress
• Innovative Commons
• 3× Island
• Konstrari Annex
• Meticulous Commons
• 3× Mountain
• Mutant Town
• 3× Plains
• Savage Mansion
• Scoured Barrens
• Shipwreck Marsh
• Stark Industries
• Stingerquill Annex
• Sundown Pass
• 3× Swamp
• Terramorphic Expanse
• Theorix Annex
• Tranquil Expanse
• Transformative Commons
• Vigorbloom Annex
• Woodland Cemetery