Nightwolf is one of few Earthrealm mortals with a strong connection to the spirit world. A powerful Native American shaman, he is guided by the empyrean forces and communes with divine beings such as Haokah, known to the East as Raiden. Nightwolf's devotion allows the Spirits to work through him, granting him unnatural long life and ethereal weapons to kombat the darkness that threatens mortalkind. In the coming crisis, however, it is not Nightwolf's arsenal that will alter fate. His faith in the Spirits will inspire those who have lost hope.
It took all of Nightwolf's power to destroy Shao Kahn. His spirit guide, the wolf, had aided him in the battle, but in the aftermath its presence was no longer felt.
Nightwolf returned to his home, seeking the elders' help in reconnecting to the spirit world. During their ritual, his wolf returned to him--changed. Shao Kahn had tethered his soul to the wolf spirit in order to cheat death. Now corrupted with Shao Kahn's evil, Nightwolf has transformed into his Animality, his bite converting his victims into subservient lycanthropes. Through Nightwolf, Shao Kahn will conquer Earthrealm one mortal at a time.