Is Xu Zijiang a Taoist in The Story of the Three Kingdoms and Cao Caozhuan?

He is a warlock. He can only appear on the battlefield in the first level of the Battle of Yingchuan, and his image is a warlock.

Please note that the warlock is actually an advanced military version of the Feng Shui master, in turn:

1- 14 feng shui master 15-29 Fang warlock 30-50 fairy warlocks.