Sith'ari
From the Encyclopedia of Speculative Fiction - http://encyclopedia.wizards.pro
Sometime during the early history of the First Sith Empire, the coming of the Sith'ari, the prophesied savior of the Sith Order, was foretold. The Sith'ari was a perfect being who would rise to power and bring balance to the Force. According to prophecy, the Sith'ari would rise up and destroy the Sith, but in the process would return to lead the Sith and make them stronger than ever before, a striking parallel to the Chosen One of Jedi legend, though it is most likely that the Sith'ari and Chosen One are one and the same.