So I haven't played for a while, started my account about two years ago I think, and I've recently begun to play again and noticed I've got Kayle now as a permanent champ. I've never purchased her, only Urgot and Caitlyn [with IP], and on top of having her I've got the Justice Kayle skin as well.
For the sake of argument lets say I bought her and just don't remember doing it I'm pretty sure you can only get skins through RP, and I've never had any RP, and still don't. Was there a promotion or something I missed while I wasn't playing that gave this to me?