[@TheWindel]

She'd be able to create about five medium-sized orbs (ten smaller ones, and about two large ones) without suffering too badly, but after that, she'll start to feel drained. Every orb she creates after the fifth one will take a bit out of her stamina-wise. Also, despite her body becoming more and more used to being tossed around every time she does it, she may experience head/body aches from the blasts.