User blog comment:FairyVsDark/Top 10: Light vs Darkness/@comment-24748439-20140812001011/@comment-77.194.131.135-20140812112510

Lucy's power seems to be the one of an exorcist, if you what the CSK said Galaxia blade is like an exorcism, so if Lucy get all the keys or the 12 gold keys she might become a devil slayer