>>44447153Up till Gen 5.
Then
Diancie is connected to Carbink but this isn't manifested in gameplay
Hoopa had the Prison Bottle mini exposition dump but that's it. It did come back in Masters so there's that I guess.
Volcanion is pointless and it doesn't even have lore in its movie, its just a rare pokémon
Magearna too doesn't have shit in the games, you have to watch the movie.
Marshadow barely had a role in its debut movie that's inconsistent with the games.
Zerarora and Zarude are just rare pokemon.
Zarude at least has a form reflecting the specific one the movie will be about, but again, its entirely based on you watching the movie.