He-Man along with , Battle Cat , Teela , Man-At-Arms , and Orko , fought Skeletor , who wanted to take over the universe . Together with his close allies , Battle Cat ( who undergoes a similar transformation from being Adam 's cowardly pet tiger Cringer ) , Teela , Man-At-Arms and Orko , He-Man uses his powers to defend Eternia from the evil forces of Skeletor .