Out of the Shurima Desert steps a forgotten emperor bereft of his empire. From the swirling sands of the desert, he summons an army fit to do battle in the League of Legends.
While similar in appearance to both Nasus and Renekton, Azir's playstyle appears to be completely different. He is what Riot Games calls one of their "minion-mancers," able to summon Shurima sand warriors at will and use them to attack adversaries. However, his move set is different from the turret-deploying Heimerdinger. Azir's soldiers are linked with his auto-attack, meaning Azir must target what he wants attacked or else his fighters are as worthless as sand dunes.
Riot has taken care to make Azir unique and powerful, while retaining weaknesses learned from their other minion-controlling champions like Yorick, Elise, and Malzahar.
For a full rundown of Azir's abilities, strategies, and synergy with other champions, check out the League of Legends reveal page.