Midnight's lead took the focus of the zombified saber cat's attention. Specifically because Midnight had used her wings to push her forward at a much greater speed. A speed that allowed her to sink her claws in to the zombie fur protecting the saber cat.
Unfortunately, Midnight had found the dangers of leaping right in to battle. This zombified saber cat was larger than her. It also had higher stats than her because it was an experimental subject used by the immortal king as a guardian. It had to be tough.
This monster had been designed to protect him when he could not protect himself. Right now, the immortal king was weaker. Unable to maintain the strength he had when trapped within the tower of the undead ruined city.
That didn't mean that midnight gave up when her claws did not cut through the fur and skin of the zombified saber cat. Isnetad, she channeled mana through her body and brought her claws to flames.