Fix and Slightly Buff Azir
Before you guys start screaming down in the comments, notice I said "slightly buff". First I'll explain my reasoning. After the latest nerf, Azir can hardly do any significant damage alone, and gets bursted down very easily. Not only that, but Azir cannot secure kills easily. After you use his kit, there is basically no way to catch and secure a kill. And now his R. It is pretty much a mess right now. When I use it, most champions can dash or use their abilities right through it. It is supposed to be "Enemies cannot dash through the wall", but almost every champion can.
Now for the buffs, I think that mid game damage should be raised a bit. The nerf riot did on him was insane. Basically no champion has been nerfed so hard. You cant run this entire game around LCS, and doing impractical and irrational nerfs to remove him from LCS play is just stupid. Along with this, buffing his early game damage a tiny bit would also be great. Early game, he hits for basically nothing. He tickles champions until they have had enough, where they then proceed to pound Azir's rear. I have found that I actually need to build liandrys with rylais now, because securing kills is simply too hard.