I agree Lyger. Destruction is a poor,forgotten power. With some animating, a "destruction" could be made, where instead of the fireball a ki ball is thrown, and if the other user has that power he may be able to knock it away. Or, a force dark rage, where the user charges up and fires a powerful beam, instead of that annoying health sapping power we have currently.
Revan: Sometimes I feel like you don't know me at all. (Lightsaber ignites) (Slices) And now, you never will. HAHAHAHAHA!
"Austin..... I am your father."
"No, not really. I can't back that up."