Catch yourself one. Hidden Ability Ditto is probably restricted by amount of stars in a raid, which also affect encounter level.
Granted, I didn't looking at your file, but I'm assuming you're making one from scratch, and that's a no-no, as there's too much you'll miss.
probably not fully implemented now, but probably would be in the future.
If you edit an existing mon caught the right way/similar encounter, you probably won't have to worry bout it.