User blog comment:RoyallyBella/Official Season 7 discussion blog/@comment-26972339-20150909130434/@comment-26964215-20150909151030

According to http://sparxguardian.deviantart.com/journal/Winx-Club-Season-7-Episode-List-and-Synopsis-558073726, Brafilius accidentally summons the Trix instead of Fairy Animals in episode 24, The Golden Butterfly. Though this could be a rumor, I can't wait!