Any good reason we can't choose un-owned champs in the practice tool?

very good question simple answer riot wants you buying that sweet sweet RP.

All about dem dolla billz Can't have you having too much fun by yourself now, can we?

Oh did you say you wanted to try a champion out before you bought them with your hard earned Blue Essense? Guess your gonna have to wait 3 months for them to be on the free champ rotation!