Who is the most evil villain in Beast Quest?

In the "Beast Quest" series by Adam Blade, one of the most notorious villains is Malvel, a dark sorcerer responsible for unleashing malevolent beasts upon the land of Avantia. Malvel's cunning and relentless pursuit of power make him a formidable adversary for the hero, Tom. His ability to control the beasts and his mastery of dark magic contribute to his reputation as one of the most evil characters in the series. Throughout the story, he embodies the classic traits of a villain, constantly challenging the protagonists and threatening the peace of Avantia.