Ultimate Book of Spells s01e19
Titre original : Dark Image
Cassy and Gus make fun of Verne for being a mortie. He gets mad and leaves. He goes to the mortie arcade. He has a magical artifact in his backpack. It turns Verne into a powerful dark wizard. Later it Cassy into a powerful dark sorceress. It's up to Gus to stop them from destroying the earth and each other!