History
Sergei Kravinoff's life presumably mirrors that of his Earth-616 counterpart, up to the point where he drugs and "kills" Spider-Man and steals his identity.
Black Cat, Spider-Man's girlfriend, attacked Kraven, demanding to know where Spider-Man was. As they fought, he told her that he was buried and attempted to kill her. Black Cat managed to overpower him and rescued Spider-Man from his grave.