>>50313464>How the fuck do you actually play the game ?Reset their stats, either with reset bags or berries.
Train them all over again.
Take them into online, Battle Frontier, Battle Maison, whatever.
Collect new ribbons, from Pokemon League, Super Training, Contests, etc. (ORAS will actually remebers your Pokemon's Contest data if you competed back in Gen 3/4, all of that carries over)
Retire.