Ryze's win rate progressively declines as you get to Master, Grandmaster, and Challenger
So, I'm exclusively looking at statistics from rank where Ryze should thrive. However, the higher in elo you go, Ryze performance weakens. Just overall his win rate plummeted after his Q nerf that affected his waveclear which makes it harder to get to his complete items in order to do some real damage. I really don't care if people use the, "Ryze is good in the hands of a good player" clause because if Masters/GM/Challenger players aren't doing good on Ryze then the argument doesn't follow. These are the BEST of the world that are performing poorly on Ryze and something needs to be done.