User blog comment:NoNickNeeded/Urano Metria power source?/@comment-4829046-20130901110219

No you aren't just over analyzing =P

You see, in FT and some other series, some things can't be explained logically(at least directly) so I just use the same excuse. Portals. Dimensional Transfer of Energy. So yeah I go with the third option. I believe she simply gained the knowledge required to open a portal powerful enough to gain that much strength. The second time, she had lost that knowledge afterwards and only gained a smaller understanding of it the second time.

Just so you know, I apply the concept of archive to every series so.... ( ._.)