thumb|right|200px|Believix Transformation thumb|right|200px|Roxy's Believix Believix is the new transformation the girls get in season 4. To earn you Believix form, you have to make people believe in fairies and magic and so, Believix can only be earned on Earth. Believix gets stronger when more people believe in magic, which means that if you don't convince people to believe in magic, your powers won't grow. The Believix comes with 4 types of wings: The normal wings, these are all different, than you have Speedix, Zoomix and Tracix. The Winx earn their Believix in season 4 episode 6 because Roxy believes in them. Roxy Earns her Believix in season 4 episode 12 because Artu was almost dead, although her Believix seems Incomplete because she couldn't use Speed-, Zoom- or Tracix. In Episode 4x19 the Winx earn another new power called Sofix, this is one of the gifts of destiny and give the winx nature powers. The second gift they get boosts their courage and let's them use powers of ice, Lovix. The third gift didn't give the girls a new transformation, it was a power to bring someone dead back to life and they could use it only one time.
Magical Abilities
With the Believix, a fairy has the power to dig in someone's heart and let people overcome there bad habits or weaknesses. Every fairy has a different type of this power.
Bloom: Force of Life
Stella: Light of Dawn
Musa: Dazzling Heart
Tecna: Gem of the Mind
Roxy: TBA
Attacks
Every girl has a special effect added to their attacks, which is different for every girl and has something to do with their main power.