Until recently, Xarnak has not found any files or documents of any kind mentioning him. Until he arrived on Planet 45938, a designated wasteland. There he discovered an old outfit and paintings illustrating him as an deity of time. (They do not say if he is a god or alien, or any matter of that) The documents found with the paintings, however, tell a different story. At only 300 years old, Xarnak was arrogant, selfish, and didn't care about helping anyone. That is, until a war broke out on the planet, killing 95 percent of the children, including a mortal girl he had become fond of. Enraged, he obliterated the nation responsible. The sorrow, hate, and regret was so great, that he had to perminately erase his memory of it. This experience humbled him, and he became kind and caring. Then, he disappeared. The documents abruptly cut off at this, leaving more questions for Xarnak.
(I know, it's sad. But I felt it was time to reveil some of Xar's past.)