Playing Azir
So I've just gotten into playing Azir and played my first Vs. Humans match after practicing against the AI for a bit. He is so much harder to use vs. people than the other Mids I like (Vel'koz, Yasuo) but I can tell I already love him. I struggled a bit in the opening vs. Ahri just trying to get used to him vs. people (especially trying to use his Q vs. someone trying not to die) but I picked up in the middle and late game.
So I'm looking for advice on how to play Azir more effectively. Is he a champion I can use in pretty much any comp, or should I avoid him unless the comp is favorable (and go for Vel'koz and Yasuo instead etc.)? Is there anyone he combos particularly well with? Is there a hidden trick or two to using his abilities? What are the common build orders? I know mine from the last game I played was odd, but I was facing 3 super-sustain tanks so I felt Morello+Void Staff was more than justified.