As the tendrils lashed at Emily herself, her body seemed to dodge their swipes and parry their strikes with inhuman speed. Despite her closing her eyes, she was not scratched by any of them. When the rush of Shadow Fire came upon her, she would raise her arms to take the attack before melting into a pile of quivering fleshy bits. The fleshy mass leapt back out of the attack's impact point and reformed into the Priestess. To Draco's sight, she would appear to not have been affected by the other effects of the Shadow Fire, though she did seem to have some marks indicative of the minimum of damage, likely from defending against the impressive attack.
Now back in her humanoid form, she kept her eyes closed as Draco approached her at great speed. Taking to hovering, with the tips of her flats just millimeters above the ground, she would play defense, gracefully floating backwards at a pace matching Draco's advancing onslaught. As he took each swing, Emily continued dodging and parrying the attacks with her hands and arms, with few of the swings ever connecting with her body, though those that did did leave some minor gashes and tore pieces off of her priestess' robes.
To any Human or similar being in the area, Draco and Emily were no doubt barely visible or comprehensible with the speed of their attacks; only certain individuals would be skilled enough to spectate the battle occurring. However, in Draco's sight, Emily seemed to be moving as fast as he was, though it appeared she too was placing minimal effort into the act, almost as if she wasn't using her own maximum either, much as he. Her smirk never left her face.
Your attacks lack finesse. You won't land a properly respectable strike against me if that's your best.
In the midst of her parries, Emily attempted to use one of the brief recovery moments present in each of Draco's swings to grab one of his wrists within that opening, intent on guiding his strike past her on her terms.
If she succeeded, she would move forward and use one of her legs to deliver a very precisely aimed kick to his gut, a kick specifically laced with enough strength to lightly damage his armor and halt his advance and unsteady him for a moment, though causing minimal other harm. Then, she would melt into a fleshy mass once more and slip behind him a short distance away, reforming in her fighting stance to await his next actions.
If she failed, Draco would find an opportunity to regain the edge in their skirmish, whether through backing off and preparing a new line of attack, through preparing to counter attacks of her own, or perhaps some other action he deems suitable.