For the first few Core Sets, called Alpha, Beta, Unlimited, and 3rd Edition (also called Revised), itll take detective work to figure out which set the cards belong to
References Wizards of the Coast, Duskmourn: House of Horror Release Notes Wizards of the Coast, Gatherer Card Database: Zimone, Mystery Unraveler Scryfall, Manifest Dread card search Scryfall, Growing Dread Scryfall, Threats Around Every Corner Scryfall, Vannifar, Evolved Enigma Draftsim, Manifest and Manifest Dread in MTG: Rules, History, and FAQ Draftsim, The Best Manifest and Manifest Dread Cards in Magic Ranked Wizards of the Coast, On Proxies, Policy, and Communication
Sure, this may be Magical Christmas Land, but tis the season
I think the best places for a planeswalker are in midrange and control decks, since their main strength lies in gaining incremental advantages over the course of a game