Regarding the recent Ahri bug fix
I wonder how many times this has affected the outcome of an LCS game. Being able to prevent (or stop) someone like Hecarim, Malphite, or Vi from hitting you with their ult because you charm them seems like a pretty big deal. I can't think of any specific examples, but who knows how a teamfight would have gone if Ahri hadn't stopped these champs from ulting an adc. I'm sure there's been at least one LCS game with both Ahri and one of these champs.