Some Powers don't benefit from % bonuses that they should. I tested this by finding gear with only the bonus I needed to test and swaping it out and looking at the dmg change on the toolbar.
Bio-Lightning doesn't benefit from AOE
Fiery Form benefits from nothing
Inferno does no damage in the first place but seems to benefit from nothing as well
Inferno hits for 70-100 maybe 4 times a second while I have other abilities that have ~4k dmg pre buffs in the toolbar
Shockwave Benefits from Nothing
Constrict doesn't benefit from Armor breaking %
Running AP mastery doesn't benefit from Armor Piercing %
Side note if self is supposed to not be melee or range Maelstorm benefits from range while being "self"