-Lord of the Hunt would be a better name than the master IMHO. I think it'd suit the mythology of the hunt better.

Herbalist could be such, that it would reduce the time recquired to gather the next set of herbs. Also, there could be a number of Herb A guy-style egdes where the guy would have better chance of finding herb A and herb A would also get a small bonus to it. Mutually exclusive with herb B guy.