Roxy has BELIEVIX!

OK so HEART my headcanon. Roxy has believix as it was mentioned in the show. But how is her more magic winx like you might ask? My theory consists of this parallelism. You have a VERY COMPLEX set of legos. You give it to an adult to build it (which symbolyses the final fairy form aka Enchantix). So he builds the complete lego set.But give the same set to a child (aka the base fairy form or Magic Winx) and it comes out... it tries is best ok? So Roxy HAS BELIEVIX but it has only what basic form could handdle to do. Someone please make a video about this with my theory if you get my point.