User blog comment:FairyRaven/Fairy Tail Chapter 429 & 430: Code Blue & Purification Ritual, Review and Commentary/@comment-50.168.121.218-20150422060122/@comment-50.168.121.218-20150422075747

I know that Aquarius key is gone but her ability bestowed upon Lucy by the Celestial Spirit. So I’m guessing that it’s a onetime use only. Then that would make sense.