I would use at least one ebotdz, they are very good for damage and ias and the best part is that is is eth and indestructible, so you won't have to repair it every run.
If you find that you are having to repair your beast zerker a lot then just use edeathz and ebotdz.
However,this is an opinionated question and would be better posted in the
Discussion and Guides forum for an answer with more expertise behind it
