He's a frost nova-ing, amp casting machine! Started off with Blessed Aim because I figured my AR would be bad since I have base dex. But ended up switching to the Prayer merc as my AR was fine. May need to switch back to BA by the time I get into the later acts/NM though.
I shopped some stuff from act 2 vendors and made an ort/ral helmet. Stats at 21.
Gambled most of my gold on Mauls, these are the two I kept. I actually ended up using the plain ML one, because it allowed me to use Conc infinitely and always have mana for warcries.