ive killed a lot of glass cannons with my heavy crossbow, theyre cool though, i love the one haded r2 of the large club, it catches a lot of people by surprise.
i have pvp'd glass cannons before a few shots with avelyn finishes them rather easily. Or you could use a Dragon slayer bow wait for them to guards then fire again.
I would have to agree with some that this would not be that good if your facing a more experianced fighter. Against a newbie it would be pretty much the death of them pretty fast, but against a veteran fighter unless you get lucky your going to put yourself at a great disadvantage. Especially when your loosing HP in any given circumstance against someone with great skill and manueverability. But it sure looks fun. It is the rage for some japanese fighters here at SL 710. Just my opin.