So I'm trying to get an Everstone from the Inverse Battle Stop but I can't seem to do it. All I have gotten are Oran Berries (when I did bad but won), a Colbur Berry (I don't remember how), and Sitrus Berries, which I seem to get for doing really good. I just can't seem to get an Everstone. All that I can find on Bulbapedia is this:
After he is defeated, Inver will give the player an item depending on how well they did.
However, that doesn't help me much. Can someone help me with this?