only having a quick look over id say maybe picking up a new trink would be a good idea
something that procs AP like the one from toc norm (cant remember the name now)
which also has another 84 armor pen on it.
or something like the mirror trink that u get from emb of heroism
as that procs AP and has +84 crit on it, an ur crit seems quite low IMO
what sort of dps u doing?