Exilus is not required, choose the one you like
[Steel Charge] is there for P. [Sure Footed] to enter the capacity level

With [Banshee]'s silence you don't need so much power and can OS a lot of ennemy.

You can swapp intensity umbra for [Stretch] ; that's as you want (and [Stretch] maybe better for open maps)

This build and spell are not for "hight hight level" ; but you can go on ennemy level 500 without problem

Focus zenurik is mandatory on the other hand to compensate for not having energize