User blog comment:IamJakuhoRaikoben/Chapter 484: The Monstrous Six, Review./@comment-4507125-20160512002046/@comment-5303512-20160512120114

In this arc, her battles were very much not in her favor that she could win, but with Ajeel she would have lost if not for Bisca's aid and Ajeel's Arrogance, and Nienhart proved to be too much for Erza however she did pull a Conquerer Haki on him before she lost consciousness.