User blog comment:IamJakuhoRaikoben/Chapter 322: Gloria, Review./@comment-4829046-20130309055917/@comment-3290324-20130310202551

Erza already had hundreds of armors and literally thousands of spells in her arsenal. It would be stupid for her to get new attacks. And she constantly uses spells and armors that we've never seen before so it's not like we get the same thing from her every fight. And you are forgetting that Erza was already a beast pre-timeskip, she doesn't need cheap powerups to put her on par with the "big dogs" in the competition because she is a "big dog."