How do you beat Azir?

If your champ can make use of it, is fun to use against Azir. The health regen and MR will tank the Q AA damage and banner'ing up a minion really pisses Azir off since they become immune to his soldier attacks.

Don't stand still. It should be a similar concept to dodging skillshots. You should constantly be kiting back in forth in lane as is. If you don't move in obvious directions, like walk down 1-2 cells then walk back up 3-4 then walk down 5 up 2, etc it doesn't give them a pattern they can follow. Sometimes when I lane versus people I can tell where their walking destination will end because they are doing the same stuff every time.

Champions that can sit in front of his face/don't mind his ulti (kassadin) are pretty good counters to azir. Oftentimes, his sand soldiers will go out in front of him but not actually near him, making him pretty bad in close range.

Try and keep track of his cooldowns when in lane against him. Unless he throws his W down right on top of you, he has to use his Q to put his soldier in range of you. So immediately after he throws a soldier at you, just walk around it and use this time to poke him down as much as you can. It's not much, but I find this helps

the easiest way is to outrange him with sth. like Xerath...or you go the easy root and just pick Morg.