The Brother of Septimus

Septimus had a brother. Cornamas. An even more powerful Boggart with shape-swifting and an orb that can survive being cartoonishly eaten like what happened to Septimus's opal. Cornamas has long heard about his brother's downfall and wanted to avenge him, but he wanted to do it smartly and approuch this without quickly exposing himself. Thus, he had his army of monsters and his enslaved Vangaurd, Mordacai, A Humannoid Pteradactyl man to lead the heroes to a trap and take them into his lair to trap them inside his own orb to torment them with realities of their worse fears. Now the Main 7 and the Lougers are trapped in Cornamas' orb, and it's up to Discord and the Ponies' Movie Friends to save the day and the heroes, and it would have to be through Mordacai and the story behind his enslavement to Cornamas.