User blog comment:NoNickNeeded/Urano Metria power source?/@comment-4821105-20130901210650/@comment-4821105-20130901214934

Remember that because Leo was in Earth Land, she couldn´t open another gate and she tried but she hadn´t enough magic power and she colapse due to lack magic power and Angel killed her. Maybe She never use because she hadn´t much power to use it and maybe why she gave to Hikibi to give to someone that trully could use. Plus this my fan theory and not the real reason.