I'm beginning to understand why Azir should be on permaban status.
I've played a few mid champs against many different people playing him, and once Azir starts building AS it's pretty much over for counter play. It's absolutely oppressing. Is this what riot envisioned when he was created?
One q = 3-5 attacks with dmg plus slow... I mean is it too much to ask for that to be tuned down a bit? You can't flash away every time you see his q coming in.
RIP 
"Oh, you're staying in one spot to q> auto me? That's silly." But seriously, I found that Syndra works wonders in this matchup. 99% of azirs will do very telegraphed movements, or stay in one spot to auto you, thus letting you hit him fairly easily. Your long range stun and burst will outmatch him in the laning phase immensely.