RWBY: The Third Immortal

During the war between light and darkness, two champions were chosen Salem and Ozpin who waged war in favor of the gods yet unknown to both of the immortals, there existed a third! A wizard cursed by his peers, an immortal that possessed powers that even the gods feared, history might not remember but the gods did.
Now centuries passed and his lonely existence was crossed away when he met a bright young lady dreaming to be a huntress forcing him on the path of good once again which he had given up, after the last war where his truth was revealed.
Will he find love? Will he find peace? Nobody knows but he will not sit down and take suffering any longer.