Empowered abilities for other classes

Whats a current ability from your main class that you want or could see becoming an empowered ability like the Evokers have. Or if you could make a new ability to be empowered what would it be. For me I would like summoning a celestial to have the "option" (like a talent node choice) to be empowered. I do like summoning celestials instantly but if I had the chance to make them more powerful or add more abilities the more I empower them could it be cool.

WOW forum post https://us.forums.blizzard.com/en/wow/t/empowered-abilities-for-other-classes/2082413