Azir winrate has dropped to 38%

That is some drop.

I agree he needed rebalancing but I think the nerfs were too much, not really in terms of damage but it just feel awkward to use his kit now with the reduced range and you lose a lot of auto attacks in lane due to bugs, perhaps consider increasing the range with levels so he doesn't lane bully early yet can still hypercarry late?

And before ADC mains come in saying "Good" maybe they should think about how they would feel if their champs got nerfed like this. They'd probably say something along the lines of "RITO PLZ YOU ONLY FAVOUR and you nerfed my high skill champ !1!"