"Wizard," he replied, nearly laughing at her ignorance. But her ignorance gave him a certain degree of power. It meant that she would underestimate him in battle--should it come to that--that most everyone here might underestimate him in battle. It was an advantage, which was not something he had ever considered before being forced into a muggle setting such as this.
Although he was almost certain that this Buffy girl could be considered an ally. The newcomer, however, he wasn't too sure of.
He looked at Harley, "What are you then, Love?" If she was dressed up for Halloween, he sure as hell wasn't familiar with the character she was trying to look like.