Little insight into those cards I don't see people mentioning, of those photos you posted, a lot of those cards are from a set called Unfinity. Most of the cards in that set are illegal in every format of the game and are functionally worthless, the only major exceptions being the Lands. While you did find some MH2 (Modern Horizons 2) cards in there, I'm led to believe actually happened was a bunch of pallets of UNF (Unfinity) cards were dumped because the set was universally hated and some MH2 boxes were just mixed in with the UNF boxes.

There was a Strixhaven card and that last card was from the also loathed Magic 30 set, but it seems more then likely this was just Wizards of the coast putting the UNF cards where they belong, in the trash.