Wait, why are people asking for Azir buffs?
If anything, his late game power needs to be shifted down to his early game. His first 3-4 levels aren't strong, but "trading" (lack of counterplay) against his soldiers becomes ridiculous by mid-game, and late game is a nightmare against him with low cooldowns, high gear synergy, and teamfight capability. He also has no hard counters and pretty much the only way to lane against him is to be a long-range caster zoned away from CSing minions or you will always lose trades because his Q + follow up poke is incredibly difficult to dodge with multiple soldiers out.
Inb4 QQ winrate because it's irrelevant when you're talking about people who have MASTERED him and take full advantage of a higher skillcap champ.