Carol went at him, drove him back into the stairs and actually seemed surprised that he didn't go down for the count immediately. Instead, he was kicking at her to get her to back up, which gave him space to get his claws up and at her.
Not such a great thing that. Of course, she backed up more, even in her current state she knew about those claws, needed to keep him from sticking them in her. It would be an ignoble way to die, stabbed by a man who had the equivalent of Ginzu kitchen knives popping out of his knuckles. He swung, she backed up, feeling his claws split the fabric of her clothes and let in the air.
It was like dancing with a puppet though as she didn't make any noise, just moved. He had swung, she waited until his arm was past, grabbed for his wrist to use it for leverage to toss him into a wall.