Oz stared with his mouth slightly open. That was some powerful magic, and Oz had seen a good bit of powerful magic in his time.
He recovered in time for his answer, which wasn't much of one. "No offense but I'd rather not say." Said training had been given to Oz in trust, which didn't mean he couldn't train someone else in turn, it just meant he wasn't going to name the trainer because it would reveal that person to be someone who either was a werewolf, or conversed with werewolves, a dangerous occupation in either case. Oz had met a handful of his fellows, and the condition was, in every case, a private matter.