User blog comment:KnocknickKnock/Celestial combination attacks with Lucy"s 10 zodiac keys./@comment-3424593-20140310043620

I want Lucy to succeed in making something epic like this that I'm gonna make a theory. :)

Lucy's mom's death's mystery has to do with The One Magic. Layla implanted the One Magic inside Lucy but fearing that it would bring peril into the world, she sealed her own daughter's Magic power so that it would be limited for her to use. When Second Origin was released for her, that limit was multiplied to 2 so she was able to summon 2 spirits at the same time, but no more because that's her sealed limit. That's why her abilities are so limited and Mashima limits her on purpose. When love is applied, that seal breaks a little and Lucy has access to a tiny part of the One Magic, which allowed her to summon all her spirits when she was in front of the Celestial Spirit King, allowed her to use Unison Raid, which "According to Jellal Fernandes, many priests have wasted their entire lives trying to achieve Unison Raid without success, thus implying that it is an extremely difficult spell to master." (look at the Unison Raid page for reference.) and also able to use Urano Metria, "the most powerful Magic of the stars" (said by Hibiki in the GMG arc). So one day Lucy's seal will completely break and she will have access to her full potential and be epic like yeah XD. <3 <3 <3 Lucy <3 <3 <3