Tynix

From Winx club season 7
The Dragon Queen earned Butterflix from a rare breed of Dragon/ fairy animal nicknamed "the feathered serpent" which she bonded with and named "Quitzal" because it's nickname is also the nickname of an Aztec God.

Shortly after that it gave her a Tynix bracelet. It looks different from the others because of her fashion sense, and her difference in Fairy form.
She transformed in to a Tynix Fairy, and thus another Fairy form was to be recorded for the books.