I am still learning myself. the build I am using in the Arena now is my late Farm Build. I finally got started on Golem's Ultimate Farming Build and changed some affixes on the other Build that would do well in the Arena. eventually I will have Toons that will be PVP only, but until then, I am using a Hybrid Climbing/PVP build. my damage is still low, but I increased my survivability so I can still do more damage, hopefully for the win! my secret is trying to get more wins than I get losses. it doesn't work all the time, but doing well so far.