User blog comment:FairyRaven/Fairy Tail Chapter 375: The Supernatural, Review and Commentary/@comment-7418318-20140314102909/@comment-7418318-20140314112303

I was only applying this to the raw magic he absorbed from Natsu without getting any soul to control or replenish them, but what you said would also be interesting.

It would leave a weaknes in his ability that might be used to defeat him. Maybe figuring out this weakness and thus gain victory for her and Natsu will be Lucy's chance to shine.