Originally Posted by
Fortune_Cookie
I don't follow this.
Where does the 20 potency difference come from? Why shouldn't you use Impact when the "Impactful" proc is about to drop and the "ready" proc isn't, unless doing so would cause you to (i) cap mana, (ii) become imbalanced, or (iii) waste an opportunity for a proc?
Verstone -> Verthunder -> Impact -> Veraero and Impact -> Verthunder -> Verstone -> Veraero are equivalent outside of specific circumstances (such as, e.g., both "ready" procs being up). It just seems a waste to let "Impactful" drop when there is no opportunity cost to using it.