Powerless Series by Lauren Robers

Set in the Kingdom of Ilya, society is divided between Elites (with magical abilities) and Ordinaries. Protagonist Paedyn Gray is a Powerless ordinary forced into the annual Purging Trials—a deadly competition where only Elites participate. She survives by masquerading as a powerful psychic and forming a complex bond with Kai Azer, the King’s son—oscillating between hatred and unexpected romance.