If super realistic fakes are out there now and there truly is no way to tell them apart, Wizards could be facing down a Kobayashi Maru
Narset, Enlightened Exile is a cool way to get extra value from non-creature cards that end up in your graveyard
If we have a card that has one super-narrow function, especially one that isn't relevant to Limited, we almost always put it at rare
(Big Furry Monster, Right Side) Bad Ass Blacker Lotus Blast from the Past Bloodletter Booster Tutor Bosom Buddy Bronze Calendar Brushstroke Paintermage Bureaucracy Burning Cinder Fury of Crimson Chaos Fire Bursting Beebles Cardboard Carapace Cardpecker Carnivorous Death-Parrot Censorship Chaos Confetti Charm School Cheap Ass Cheatyface Checks and Balances Chicken Egg Chicken la King Circle of Protection: Art City of Ass Clam Session Clam-I-Am Clambassadors Clay Pigeon Collector Protector Common Courtesy Creature Guy Curse of the Fire Penguin Curse of the Fire Penguin Deadhead Deal Damage Denied
As the iconic Red creatures of smallness, they have Red abilities in drovesFirst Strike, Mountainwalk (plus at least one Goblin each that has Forestwalk, Swampwalk, Plainswalk, and Islandwalk), a cornucopia of Haste, and more