So, at the beginning of your upkeep, you reveal the top card of your deck, and if it matches a Creature type you have in play, you get to cast it for free
There are 8 uncommon, 7 rare, 5 mythic rare Treasure Trove cards

Academic Dispute Academy Raider Accelerate Akki Ronin Akki Scrapchomper Akoum Flameseeker Aleatory Amber Gristle O'Maul Ambitious Assault Ancestral Anger Arterial Alchemy Artist's Talent Ashling, Flame Dancer Ashling, Rekindled Axiom Engraver Balduvian Rage Battlefield Scavenger Bedlam Reveler Belligerent Guest Bestial Fury Big Score Big Wheel Bitter Reunion Blindblast Blood Petal Celebrant Blood Sun Bloodfire Mentor Bloody Betrayal Boiling Blood Boundary Lands Ranger Brand Brass's Tunnel-Grinder Burning-Tree Vandal Burnout Case of the Crimson Pulse Chandra's Defeat Chandra's Regulator Chandra, Spark Hunter Change of Fortune Chaotic Strike Charging Strifeknight Charming Scoundrel Clamorous Ironclad Cleansing Wildfire Cloudpiercer Common Iguana Conspiracy Theorist Cool but Rude Crash Through Crimson Wisps Cunning Maneuver Curse of Chaos Day of the Moon Decaying Time Loop Decree of Annihilation Deem Worthy Demand Answers Demonic Ruckus Desert Cerodon Desperate Ravings Destructive Digger Discerning Peddler Dismissive Pyromancer Dragon Mantle Drannith Stinger Electric Revelation Ember Shot Enthusiastic Study Epiphany Storm Exocrine Expedite Explosion of Riches

Instead, the set follows the same general narrative of the 13 Assassins Creed games
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