cooldown reduction hacks?
I was playing Katarina last match and went up against an Ahri. In one team fight, I saw her charm my teams Hecarim so i shunpo in and ulted just to get chamred . It had only been 1 to 2 seconds between Hecarim getting charmed and me going in, this happened again in another team fight. Ahri had 29% cdr, it is possible that he/she might be using some form of 3rd party tool to reduce her cooldowns?