first gen pokemon cards pokémon 1st Generation Pokemon TCG Base Set Checklist:

This is a very obvious theme within the set

Some include a physical or vocal component, like Blacker Lotus or the Gotcha! mechanic on Touch and Go, some have rules that specifically reference flavor text or artists, like Carnivorous Death-Parrot and Drawn Together, and some require interacting with people or objects outside the game (Ashnod's Coupon being my favorite)

You can find other recent set reviews here: Card Kingdoms set review only cares about broadly relevant cards, because we want to maximize the usefulness of the cards in your collection

Corners and Edges: Imperfections like bends or fraying impact the final score

Legality depends on the tournament format -- Wasteland Survival Guide Token can be legal in some formats and banned or restricted in others

Brightglass Gearhulk certainly has the stats