Lane poke and sustained trading pattern.
Burst damage and target access
Hitting a champion with 3 separate attacks or abilities in 2s deals bonus adaptive damage.
Recover health when you damage an enemy champion.
When your wards expire they leave behind a Ghost Poro. The ghost poro grants vision until discovered. Gain adaptative force for each ghost poro spawned.
Heal for a percentage of damage dealt with your abilities. Increases with each unique takedown.
Empowered abilities and resource manipulation
Gain 10% CDR when you reach level 10. Excess CDR becomes AP or AD, Adaptive.
Gain increasing amounts of AD or AP, Adaptive over the course of the game.
+9% Attack Speed
+5 AD or 9 AP
+8 Magic Resist
Electrocute is a great damage keystone choice for Azir as you're able to easily proc for bonus lane poke damage with a [Q] and a few autos.
Taste of Blood's bonus healing plays a huge role in empowering your ability to lane aggressively and trade without having to recall constantly.
Ghost Poro's bonus stats and vision are great for snowballing leads where you are able to stay on the aggressive.
Ravenous Hunter further empowers your ability to trade aggressively in lane and sustain during late-game teamfights with your massive damage scaling.
Azir likes to opt for big AP items so the extra CDR from Transcendence goes a long way for keeping your [Q] off cooldown for mid-game fights.
Azir is all about that late-game scaling and Gathering Storm doubles down on your ability to carry in 30+ min games.