Prophecy of Blood & Flame (The Aurorian Triology #1) by Lacie M Lou:
 
An outcast scholar.
A conflicted warrior.
A vengeful daughter.

Welcome to the land of Hevastia. Natural magic disappeared 100 years ago under mysterious circumstances, leaving only a handful of corrupt mages with unnatural abilities in power. Join three unlikely allies as they find themselves at the end of each other's blades and in the middle of a centuries old prophecy.

Cire is tired of living in the shadow of his Morei partner, Kai. When he discovers an ancient prophecy promising the return of Lady Hevastia, the goddess prophesied to save the land of Hevastia from raging darkness, Cire journeys to find her.

Kai has always been loyal to the Haematitian Council, the governing body of Hevastia, and their doctrine, the True Faith. He is the strongest mage in generations. But a chance encounter makes him question everything he believes.

Eliana Bellamere desires a life beyond the confines of her mountain village. When she is unexpectedly forced out of her home, Eliana is faced with a choice—seek vengeance against the men responsible for the death of her family or join their quest to uncover the true intentions of the Haematitian Council.

Setting off on a quest for answers to the prophecy and their roles in it, each unlikely hero will battle more than the growing evil that pervades their land in order to secure their own destiny.