All this proclivity for chaos and insanity got its first Ravnican representation with the hellbent mechanic
There are plenty of other entertaining (and sometimes valuable) holiday promos I didnt cover this week
1Chainer, Nightmare Adept

Scientists Aang's Defense Abandon Attachments Aberrant Abeyance Abomination of Gudul Abundance Abundant Growth Abzan Banner Abzan Beastmaster Academic Dispute Academy Elite Academy Loremaster Academy Raider Academy Wall Accelerate Accumulated Knowledge Aclazotz, Deepest Betrayal Acquisition Octopus Acrobatic Maneuver Action News Crew Adrestia Advancing the Spirit Adventure Awaits Adventurer's Airship Aegar, the Freezing Flame Aeon Chronicler Aerial Extortionist Aesi, Tyrant of Gyre Strait Aether Channeler Aether Spellbomb Aether Syphon Afflict Afterlife Insurance Agency Coroner Agent 13, Sharon Carter Agent Maria Hill Agent Venom Agent's Toolkit Aggressive Urge Agna Qel'a Agonasaur Rex Ahriman Air Nomad Legacy Airbending Lesson Airborne Aid Airship Crash Airship Engine Room Akiri, Fearless Voyager Akki Ronin Akki Scrapchomper Akoum Flameseeker Akroma's Blessing Akroma's Vengeance Aladdin's Lamp Alandra, Sky Dreamer Alania, Divergent Storm Alaundo the Seer Alchemist's Apprentice Alchemist's Vial Aleatory Alhammarret's Archive All-Seeing Arbiter Alms Collector Alpharael, Dreaming Acolyte Alphinaud Leveilleur Alquist Proft, Master Sleuth Altanak, the Thrice-Called Altar of the Wretched Amass the Components Amber Gristle O'Maul

This is undeniably weaker than the banned card since it shuffles untargeted creatures back into the deck while also having a restrictive clause
Rex, Cyber-Hound Rex, Cyber-Hound screams combo-machine