The Emperor of the Sands is released in patch version 4.16 along with the Galactic Azir skin. Designer:
Arise! creates a sand soldier at a target location, from which the soldier projects threat in a circle–so far, so Heimerdinger. However, soldiers require an active input. Azir must right-click and go through a basic attack animation for soldiers to do anything. This makes both Azir and his enemy understand that a conscious command was given to the soldier. This also means that if Azir is stunned or running away, soldiers cease to be a threat. All of a sudden, Azir’s opponent can comfortably aggress.
Conquering Sands orders all soldiers to charge toward a target location, damaging and slowing enemies they pass through. This forces Azir to think carefully about when and where to send soldiers. Can Azir afford to use the spell for damage and slow or (Counterplay incoming!) will this allow the enemy to engage on Azir while his soldiers are temporarily unable to move?