A Ruinous Fate by Kaylie Smith

Fate does not choose the weak. Fate chooses the ready. Illustros is a cursed realm ruled by the ruthless Gods of Fate, and no one understands the Fates' wrath more than Calliope Rosewood. Blessed with unspeakable powers that terrify even the most dangerous witches and fae, Calla hides her forbidden magic in shame and fear that one wrong touch could send her to her death. With only her two best friends in tow, Calla deserted her coven and has been on the run ever since. Worse, Calla is concealing an even darker secret: fate has chosen her as the final prophesied Blood Warrior, the being destined to start the Fates' War, which will decimate her people and eradicate their magic. After a betrayal from her infuriating ex Ezra leads her one step closer to fulfilling that age-old prophecy, Calla is desperate to do whatever it takes to reset her fate. So when a mysterious and charming witch offers to help Calla do just that, she immediately agrees to his plan. Only catch? That plan...