Bio: Ermac was created with dark magicks by the former emperor of Outworld, Shao Kahn. He is a collection of souls, those of the thousands of warriors vanquished in Shao Kahn's conquest of Edenia. After Shao Kahn's death, Ermac remained loyal to subsequent Outworld emperors: first Shao Kahn's chosen successor, Mileena, then the usurper, Kotal Kahn. He is now a key component in the emperor's efforts to quell Mileena's rebellion.
Bio (in-game): As punishment for resisting Shao Kahn's claim to the realm of Edenia, the souls of the vanquished were tom from their bodies and fused together to form the being now known as Ermac. Bent to Shao Kahn's will, Ermac is his foremost enforcer. The essences of so many souls bound together give Ermac immense telekinetic power - an advantage that will destroy Earthrealm's resistance to Shao Kahn's rule.
Bio (manual): A being created through sorcery, Ermac is the combined might of many warrior souls fused together. He was once a servant of Shao Kahn until Kenshi freed him. Now he seeks to make amends for all the harm he has caused in the past by freeing Liu Kang's enslaved allies from the Dragon King's control.
Bio (in-game): An enigma to all who come into contact with him. Ermac's past remains shrouded in mystery. It's believed that he exists as a life force brought together by the souls of extinguished Outworld warriors. Shao Kahn has managed to take possession of these souls and use them to fight on the side of tyranny.