[Saber leaps back on instinct before what isn't covered by her armor can get ripped to shreds by the counterattack, though she's immediately filled with loathing at the retreat. She can't afford to back down, with the death grip it simply won't let up on even in the face of serious injury and pain. The knight automatically feels trying to assault it in melee combat would be a disadvantage for her, with the claws and shifting skin, but mid range brute force... There's no one better than her.
Willing the wind seal around Excalibur to become a raging gust, she focuses it into a compressed form before swinging the sword-- creating a hammer of air pressure on the level of a high wind spell to toss the beast away like a leaf]