Key Feature Simple but efficient card configurator
I also had a flying creature in the file that had a saboteur effect that drew a card, which I'll talk more about next time
Being in the "face-down state" implicitly means that the permanent is a 2/2 creature with no other characteristics (regardless of what the actual card is.) It would work even if a permanent, like a land, would somehow become turned face down by some effect: It would become a 2/2 creature regardless of what it originally was

Adventurer's Airship Angel of the Ruins Anvil of Bogardan Architects of Will Argentum Masticore Arm-Mounted Anchor Armix, Filigree Thrasher Ashnod's Transmogrant Assassin Gauntlet Bag of Holding Big Wheel Blood Fountain Blood Servitor Bloodsoaked Altar Bloodthorn Flail Blurry Beeble Bomat Courier Boosted Sloop Brass's Tunnel-Grinder Ceremonial Knife Chandra's Regulator Clamorous Ironclad Clockwork Avian Clockwork Beast Collector's Vault Colossus of the Blood Age Containment Construct Coral Helm Cryptcaller Chariot Currency Converter Cursed Rack Cyclonus, the Saboteur Daily Bugle Newspaper Data Scrubber Deal Broker Detention Chariot Diamond Lion Dictation Quillograph Disrupting Scepter Dodecapod Draconian Cylix Elaborate Firecannon Emmessi Tome Esper Sojourners Everythingamajig Flamewar, Brash Veteran Flowstone Sculpture Flying Drone Fodder Tosser Gastal Thrillroller Gate to the Afterlife Glass-Cast Heart Glassdust Hulk Grafted Skullcap Grimoire of the Dead Harnfel, Horn of Bounty Hazoret's Monument Heirloom Mirror Hollow One Indatha Crystal Ironhoof Boar Izzet Keyrune Jackdaw Jalum Tome Jandor's Ring Junk Golem Ketria Crystal Key to the City Knowledge Vault Kree Sentinel Kyren Archive

The new cards are fun, but only a couple will see play outside of Morph/Disguise decks, particularly Unexplained AbsenceUnexplained Absence and Showstopping SurpriseShowstopping Surprise