User blog comment:IamJakuhoRaikoben/Chapter 381: Where Demons Live, Review./@comment-74.61.219.92-20140420031503/@comment-3290324-20140420031831

Sayla being harder to Take Over does not equal not being able to be taken over at all. If Sayla is a much more powerful Demon and Mirajane is having trouble taking her over, of course she'd think that she was unable to do it. And she didn't manage to fully Take Over Sayla like she wanted to, only partially. And a very small part at that. So frankly, I don't consider it absolute BS. And, it's much better than the BS feats that Natsu and Erza have pulled collectively. At least here Mashima tried to give an explanation. Whereas with them, they just think about their friends and BAM they become ten times stronger. -__-