On Saturday And Sunday Your Rival Will Be Standing In The Fight Area In Front Of The Battle Tower He Gets Stronger On How Many Time You Have Won The Pokemon League First Time You Battle Him His Pokemons Will Be Lv 58 To Lv 63 Then He Gets Stronger His Pokemons Are STARAPTOR SNORLAX GASTRODON Thats All I Know. Khaled7 Glad To Helpppp.