A prophesied messiah figure.
Andrasteia (Teia) said that, "The Lightbringer is going to be a genius of magic. A warrior who sweeps all before him. He will be great from his youth. He’s going to do things no one ever thought was possible, and bring us back to the true path. Lucidonius wasn’t even a good drafter. He figured out how to make colored lenses, but that hardly makes him a genius, does it? The Lightbringer will protect us. He will slay gods and kings.”
The Blinding Knife (Lightbringer Book 2) (p. 139)