Sealed Fate book 4: Orin The Hero of old

A cursed champion is trapped inside an ancient fighting arena, their power sealed by an ancient curse. He is one of the last lost ones Children who are blessed with unbelievable power and usually is gifted a special power of untold power. This follows the lost child of the heroes Orin AshFall. Who knows nothing of his origin or power that hides within him.will he get free from the ancient battle city of Tempest, located in the Lavine Empire.