Dreamix is a higher, evolved fairy transformation and magical power that centers around dreams. It is first to appear in the spinoff series, World of Winx. Unlike previous fairy transformations and levels, all spells are nonverbal.
The only ones to achieve this higher fairy power are:
Even though she makes appearances as a supporting character, in Season One, Roxy does not achieve this transformation.
This fairy power is later evolved and further advanced to "Orynix" in the second season.