Jayce and the Wheeled Warriors (1985)

S01E57 The Life Eater

Saw Boss seeks the help of the Life Eater to eliminate Jayce, but there's a catch: the Life Eater operates under his own rules. He forces his victims to confront their deepest fears, and if they falter, succumb to those fears, or betray their allies, their life force becomes imprisoned by him forever.