Speak to Menara Voidrender in the Barrens.
Haha! You're doing very well for yourself, young [class].
Given time, infernals and dreadlords will bow before you!
But until that time comes, you must still rely on weapons forged by the hands of the mortal races.
You seem prepared for another such creation, and if you are willing, Menara Voidrender would speak with you! She is near Strahad's tower overlooking the port town of Ratchet. Go there when you are ready.