Thanasi is a mystic warrior that betrayed his lord Archimage. He gained the ability to possess other corpses. When he began to posses female bodies, he changed his identity to a female witch called "Necromantra" Thanasi rejoiced in his new gender, when he took over the body of Eden Blake.

She become an ally of the god Argus in the Godwheel event, and despite being expelled from Eden's body, she returned to posses the body of the unborn child of Eden and Lukasz, and used magic to age her to adulthood. Despite being vanished to the Godwheel again, Necromantra continued to plague Mantra and her successor, Lauren Sherwood.