These are always, in Disney Lorcana at least, alternate art, super rare variants of cards that youll find in the base set
Game features are identical as well, including both player-versus-computer and player-versus-player online battles, deck building, card trading, avatar customisation, a Pokmon TCG tutorial, and more
Historic was made at first as a way to ease into Pioneer as well while still being its own thing - hence the Historic Anthologies and Jumpstart sets having Pioneer-legal cards in them
Magic Arcana
Payoff Milling cards is fun, but its easy to forget that we are doing it to set up the early pressure and overwhelm the opponent before they can do anything about it
Darksteel Angel shrugs off board wipes and burn, forcing opponents to find exile, bounce, or -1/-1 tricks and the counters clause blocks the last one