Winx Club - Season 8, Episode 11: Treasures of Syderia (Nickelodeon Asia)

Valtor and Obscurum intend to attack a new star, Syderia, and to do so, they decided to adopt a different strategy: deception. When the Winx come to the rescue of Syderia, they discover that the Lumens that inhabit it are convinced that the fairies came to steal the treasure of their star. After discovering that in the subsoil of Syderia there is a mountain of crystal, the Winx make it shine with their Cosmix powers. Bloom has the idea of bringing a crystal fragment to Orion to make him build new core for the dying stars.