User blog comment:FairyRaven/Fairy Tail Chapter 414: Drops of Fire, Review and Commentary/@comment-117.218.177.208-20150108092533/@comment-7418318-20150108103048

Considering how Midnight was able to make people think they were being ripped apart and Mavis was "only" able to make a realistic 3d image of monsters and soldiers I'd say Midnight is likely the better illusionist among the two. I somehow doubt that in the little time Mavis has left to live in Zero she's able to develop the three Fairy Magics AND improve her illusion magic to Midnight's levels.

Also it looked like Makarov stopped his plans to use Lumen Histoire, so no Mavis in this fight.

Furthermore why would Igneel play along with the illusion and send Natsu a telepathic "death-message"? If he talked out loud to fool Acnologia yeah maybe, but Acno can't listen in on telephatic messages. And why not use the moment when Acnologia's unable to see his real whereabouts to rip out his throat or something similarly lethal?

It just doesn't add up.