What are you trying for with this build you won’t kill anything and will likely faceplate like crazy if you try to solo plus 4s.
Forts are now much better due to proc changes.
Procs go into Domiate, TK blast, wail, and the tornado that does KB. Forget mental blast and scream they suck. I also think the AOE hold is worthless to.
Go with elec pool and take AoE immobilize and proc it out to. Ball lighting can use 5 posi and another damage proc.
Personally I like tough, weave and aid self. You need them for when the lucky hits get through. Preventative medicine proc is your friend. I 6 slot aid self with the set.
I used to use something similar to your build and found it frustrating to solo. Now I feel like a beast. I been tinkering with proc monsters I have like 10 level 50s and find the fort the most fun and one of the most powerful to.