Harm is, in general, a pretty potent spell. Whether clerics or WPs or tinkers get it, it's going to add a measure of power that's clearly in need of balancing.
I disagree wholeheartedly with the idea that any guild should be "sucky". If a guild doesn't have a particular niche or can't be worth something somehow I don't think it should be available to play. Why would I as a new person spend hours on end playing a guild, only to find out three months later that it's the "sucky" guild. Ha-ha. Joke's on me. Try again!
