I'm currently levelling an evoker FvS with 3 Wiz past lives. I've been toying with the idea of taking shield mastery at 18. What is everyone's opinion on this feat, post update 14 and considering EE difficulty?
My feat choice at higher levels will boil down to whether I want to be able to pierce EE drow SR. If I do, then I will have to take all 3 spell pen feats. If I don't, then I have a lot more leeway into what feats to take (extra spell focus, shield mastery, epic stat, etc).