Berserk

Arias yelled like a roaring beast, and people nearby unconsciously backed away from him. Arias slowly got up, unleashing his murderous intent as if he wanted to devour everything. The power that he gave off was terrifying. In his core of magic, black energy began to gather, increasing faster and faster the more intense his anger became. The power of beastcores had remained dormant inside Arias’ body, waiting for a time to be awakened. The lightning inside him collided with the black energy like two beasts fighting for their territory. But soon, they merged into one, becoming black lightning that exuded a bestial aura.