most people ive seen run a s/p shortbow build, but run d/d for bosses in dungs. me personally, i recommend going full damage i normally run daredevil, deadly arts, and critical. but if you dont have expansion you can go trickery or shadow(for more survive) also nice for when you are running dungs because you are able to skip bosses. venom share build is also pretty decent for bosses or dung. but i normally run just d/d for bosses, shortbow for trashmobs. reniewed vigor, shadow refuge, the singet that does increased damage, the one that increases percision or i do a venom, then i do dagger storm or thieves guild(i only use thieves guild if its a boss fight or trashmobs, but only after my team as drawn attention). but gl!