Annie Stun bug
So here I was in a ranked, picked annie support. Every damn time I wanted to tibbers stun , nothing...tibbers didn't stun, I had my stun another time, and was like '' I'm gonna stun janna with my q'' Did it, she wasn't stun...AGAIN!
I just think it's really annoying to play ranked and lose because your primary spell on your champ just doesn't wanna work...