These were gold-bordered (yellow in the modern format) and, at least in later expansions, would allow for more cross-colour identity in both gameplay and flavour
If you do, search your library for a creature or basic land card, reveal it, put it into your hand, then shuffle
Ive been opening packs from Black Bolt and White Flare for the past week, including a White Flare Elite Trainer Box, the Poster Collection, Black Bolt Binder Collection, the Victini Illustration Collection, and a White Flare Booster Bundle
Its sort of reverse ninjutsu, and could be a great way to bounce ninjutsu creatures the turn after they were ninjutsud in
You saw it back in the Throne of Eldraine Brawl Decks, and now it's back
I still would have traded it for a Blastoise or a Charizard or something, but I loved being able to brag about 1st Editions and initiate other kids into that concept