I you ever feel like taking Azir as an ADC...

Please, do not get AP items. Try to get as much AS as possible. Critical is also great since he will be AA a lot.

From playing Teemo and Kennen, I've learned that a typical way to do this is to start with some early AS.

Azir already gets bonus AS for CD reductions. If you get you already gain a lot of AS + AD. You basically need only 3 items to get automatically to 2.5 AS. That's then then or you can get some early lifesteal by getting . Any of these are fine for a ADC Azir.

When laning, do not (I repeat, DO NOT) waist mana on your soldiers for the extra damage on minions. Though the AS is the same for them, they may deal less damage than just normal auto attacks. Also, things like lifesteal and such do not work with them. Think of Azir like Twitch. You have abilities that can change the corse of battle but you mostly rely on your auto attacks to finish a job. You can use them if you feel like it. You should use them to initiate. But don't waist the mana. You may want to use the abilities for ganks and such.

Now, why would I even say this since Azir is a primary mage. There are those who will be curious enough to try this. If anything, I would practice first with Kennen ADC before I go to Azir.