I have had an energy melee scrapper, stalker, and tanker since the one big update that gave us Energy Focus, and Power Crash hasn't felt good to use on any of them. The radius, arc, and damage have felt fine, but the "bonus" ability to expend energy focus to increase its target cap has never felt impactful to me. Even running a tanker solo on x6, I am hard-pressed to find a time that I can make use of boosting the target cap from 5 to 11 (or 10 to 16, including overcap). And even if the screen is absolutely packed with enemies, I would probably prefer to spend that energy focus on either a guaranteed stun or on speeding up Energy Transfer. Using it on Power Crash doesn't feel impactful.
I basically only ever spend energy focus on Power Crash on accident, and that always feels bad when I do. I feel like I wasted that energy focus. I would take it off my bar, but I still want to have that second AoE attack.
So, I propose changing Power Crash's Energy Focus bonus somehow. I don't know what would be the most fun or the best balanced, but here are a few different ideas I have for it:
Boost its range or radius on EF
Have it do more damage to one or more targets on EF
Give it a chance for KD on EF
Reset its cooldown (once only) on EF, like water blast's Water Jet
Convert all of its damage to Energy on EF
Have it apply some kind of self-buff or enemy debuff on EF
I figure any combination of the above changes would make the power a lot less of a drag to burn EF on, and I'm also open to any other ideas for improving/balancing the ability that people might have.