User blog comment:R. Lawton/How strong are some the GMG characters in comparison to Fairy Tail/@comment-7418318-20130911123124

I just had an interestin thought: What if the reason for mages to become this much stronger is the result of all of Edolas' magic being "dumped" into Earthland.

While magic was supposedly running out in Edolas, there was still quite a bit left when the reverse anima was put into effect.

All that magic power might have dispersed around Earthland and caused magic of all forms to be strengthened. If this effect is a slow incremental effect rather than someone instant, it would have effected the people out side the Fairy Sphere a lot more than those forzen within, which would explain how the average strength of mages all over Fiore (or maybe Earthland as a whole) has increased in the Tenrou teams absence.