Thoughts on my build

Will be using the full Ultos set and focus on lightning damage: included)
Saw the Conjurer version of this and didn’t feel that the debuff and healing from the Conjurer was that important so i went for a bit tankier/more flat damage increase(Squad Tactics+Fighting Spirit).
Also swapped the original Giant’s Blood ability to Reckless Tempest(devotions), worth to swap or is Reckless Tempest underwhelming and Giant’s Blood better sustain?
Would appreciate all the help^^