So what are we gonna do about Sona?
Even after her last nerf, she's still at a 56% win rate, and has the third highest play rate among supports. She has amazing poke in lane, for sure, but that's only part of the problem. The real issue is how easy it is to itemize cdr on supports this season. And on a support with burst as amazing as Sona, this is obviously a problem.
http://champion.gg/statistics/#?sortBy=general.winPercent&order=descend