He was first seen as the "Riddle Man" who gave Zhenwu a riddle to solve. This riddle will decide Zhenwu's fate. He is known to give predictions. Other than that, he remains unknown. We do not know much about him or where he came from.
His predictions makes his attack impossible to dodge. Not only that, he is impossible to attack. All of his actions are based on his prediction. Enemies who fight against him find it difficult to impossible to defeat him.