I'm a little confused on the mega Empoleon ability, because before reading this, I thought it was the description in the excel file in the patch folder. Maybe that's where the disconnect is, since this whole time I was confused and thought the game was bugged when enemies could raise their stats after I reduced them with the entrance reset, like how the excel description works, since I never looked at the in game description since I assumed it would be the same as the excel one. But even then, it seems like it only resets stats on entrance, and doesn't do either secondary effects like the prevention of further increases, or prevention of recovery turns.