Here's why:
* Believix is a magical transformation: It's not a physical object like a potion, but rather a power unlocked within the Winx fairies through their belief in themselves and their friends.
* It's earned through emotional growth: The Winx Club earned Believix by proving their strength and courage through various challenges, ultimately demonstrating their deep faith in each other.
* The Dragon Potion is a different thing: The Dragon Potion is a specific object mentioned in the Winx Club universe, but it's not related to Believix. It's believed to have magical properties, but its exact purpose and uses are unclear.
So, while you can't physically win a Believix Dragon Potion, you can channel the spirit of Believix in your own life by believing in yourself, supporting your friends, and facing challenges with courage.