Nerf Cassiopeia.
League of Legends Match History
Since no devs actually reply on EUW I made an account here.
Simple as really. I had an inkling she would be overpowered as hell. And I just played her toplane. Yeah, she's pretty much an invulnerably tanky ADC who melts tanks and deletes 3 people with her ultimate . She isn't weak at any stage of the game and I could easily 2v1 if not more without even thinking about what I'm doing.
She has absolutely no downfall at all, as you can see from the match history.
Hell, I could even delete the dragon in a matter of seconds, I should have probably tried to solo the baron, but I was so busy killing everything in sight with my 989 AP I forgot.