Now after the lastest patch I find myself struggling. I could pilot my build with some attention and preperation nicely. Nothing like being an impenetratable wall, but it worked and I had fun.
Now after the hit on RoH I find my Infiltrator Rune Trapper in a hard place. Especially in FG. Before I could do Elite nicely, with attention and real piloting. So no sleep build.
Perhaps you could bring me back on the track. as I said, this is a legit levelling build. So no GD Stashing or ultimate setup at the moment. I mostly need input on skills and devotions on how to bring my build back on a usable track. 
So at the moment after finishing Malmouth and starting FG (normal mode) it looks like this:
https://www.grimtools.com/calc/gZwOBrXZ
The plan was to spend the last devotion points on Leviathan and the rest on Attak Seru to reach the skill there. I wanted to complete all Rune trees and Elemental Awakening and Ring of Steel, some of the Word of Renewal line and Deadly Aim.
But at the moment I am not sure if a Rune Caster is going to work anyway. So thanks in advance for any input.