The Hurricane Wars (Hurricane Wars #1) Harper Voyager

"War has raged for a decade in Lir, and orphaned soldier Talasyn has learned to keep her powers hidden to survive. As the last known Lightweaver on the continent, she can create radiant weapons that cut through the invading Shadowforged warriors' dark magic. But all that changes when she is forced to reveal her abilities on the battlefield to defend herself from the Shadowforged prince himself, Alaric Ossinast. In a clash of light and dark, their magic combines to create a new force the likes of which has never been seen"