@RiotRepetoir, Azir could use a Q buff in 8.8 prior to PoM and Manaflow changes.
So, I did try
in PBE with the changes to PoM and Manaflow and from what I can say is that, you did eliminate the issue he currently has in live which is being able to stay in lane for a long time thanks to his mana sustain, so good job.
However, I think that because of his recent Q nerfs, it will make him almost non-viable at all. F.e. before preseason, a lot of Azir mains would build the old Morello because we didn't have runes like Manaflow and PoM which gave us insane mana regen early. However once Runes Reforged was introduced, not only did we have a lot of dmg on Q, but it was very spammable and made him basicly a lane bully. This made it obvious that the only thing that was worth nerfing was his Q but in the end it didn't matter because it was spammable and the more you spammed the sooner the enemy laner would have to go back.
But now, because of these changes, we can't spam Q as we use to and have to play a bit smarter in lane. However at the same time, I don't feel like it's worth even using Q because of the damage it has now. You can say that it doesn't provide the value for the mana cost and now that we can't use PoM and Manaflow as before, we have to be more careful with the mana that we spend.
My point: He needs a Q buff, something that makes it valueable to use for the manacost that it has.