As the older brother of Duncan, Malcom pledged his services under the royal king, Miro. During the Great Unrest, he was injured in battle, and was affected with magical amnesia. After recovering, he settled in the Mystic Mountains, clueless on how he lost his battalion. When Snake Men attacked his town, he saved the Masters of the Universe. Although, during the event, Malcom fractured his right hand. In a sense of obligation, Duncan replaced Malcon's absent right hand with a robotic strong arm. From there on, Malcom was named Fisto and he fought evil, alongside with his brother, Duncan.
Jitsu is Fisto's evil counterpart.