Combo w/ Soul Blade & Soul Driver

Just wondering since I never played a Warrior before:

For Dawn Warriors, does attacking with Soul Blade or Soul Driver get you any orbs for Combo Attack? Or do you must use Power Strike, Slash Blast and Brandish to get combo orbs?

Because If they do get you orbs for a dmg boost, then I am going to put SP on Combo Attack before Soul Charge. Otherwise, I'm putting SP on Soul Charge before Combo Attack since I'm going to use Soul Driver and Soul Blade more often than Power Strike for lv 70 - 100 (before getting Brandish).

Thanks!

Yes those two give orbs. Normal attack would as well.

thanks for the reply I shall put points on combo attack first then.