The designation "Earth-TRN859" used in this article is unofficial , used by this wiki for internal purposes only until an official designation is provided by Marvel.
History
Mephisto seemingly had a similar history as his Earth-616 counterpart. He was recruited by Stilt-Man into the Sinister Sixty to steal "the heart of the city." Mephisto and the rest of the Sinister Sixty ambushed Spider-Bite and Spider-Man at Grand Central Station. He tried to tempt Spider-Bite, only for the young hero to punch him in the face.[1]