Win rates mean nothing
It doesn't matter if a champ has a high win rate or a low one, their balance doesn't have anything to do with it.
For instance, some of the champs that are considered to be the most powerful ones in the game have low win rates. That doesn't mean that they need buffs, its just that since they are powerful or considered powerful, they see more play and will end up losing more games from people who don't know how to play them.
High win rates don't mean anything either. Just because a champ has a high win rate doesn't mean that they need nerfs. Most of the time, its because they aren't played by anyone except people that play them A LOT and know everything about them and are very good with them. This means that they see higher win rates since they don't have as many FoTM scrubs playing them for power value.
52% isn't a high win rate, thats winning barely more than half your games.
I personally have a 74% win rate with Nautilus, whom most of the community considers to be in need of serious buffs. Its not that he's OP; its that I personally know how to play him to maximum effect and so I win by far the majority of the games that I play with him.
TL-DR Why the fuck are you nerfing Sona?
