So when i'm about to set a battle box it says that once set, I cannot move my pokemon back. So if I set my battle box, can I change it later, or will my pokemon be there forever?
>Once the user of the Battle Box registers their Pokémon team for an official tournament that uses the "Battle Competition" feature, the team is locked in the Battle Box and may not be modified (even the reordering of moves) or removed from the box until the end of the competition.
Source: Bulbapedia