Are you asking about her super (aura soul spark) or her ultra (illusion spark) I’m going to assume that you are talking bout her ultra since you are talking about using EX moves in your combo’s. Her ultra by itself (assuming you have a full ultra meter) does about 500 points of damage, her super by itself does 300 points of damage. But it’s damage diminishes (as do all characters supers) if you use it in a combo.
For instance if you jump in hk, hp, hp reflect then juggle with her super, the super will only do 200 points of damage, but the combo will do 440 points of damage total.