The Mutant X version of Spider-Man diverges from his mainstream counterpart in Amazing Spider-Man #102, in that he was unable or unwilling to cure himself of having six arms. For unexplained reasons, he reverses his name to Man-Spider. A third divergence occurs when he and his clone continue to coexist after the end of the original Clone Saga. The two keep this a secret by taking care to never appear in public at the same time, but "Man-Spider" is forced to admit the truth after his clone is killed by Madelyne Pryor. He himself is later killed.
The practice may have originated in a Celtic festival, held on 31 October–1 November, to mark the beginning of winter. It was called Samhain in Ireland, Scotland and the Isle of Man, and Calan Gaeaf in Wales, Cornwall and Brittany. The festival is believed to have pre-Christian roots. After the Christianization of Ireland in the 5th century, some of these customs may have been retained in the Christian observance of All Hallows' Eve in that region—which continued to be called Samhain/Calan Gaeaf—blending the traditions of their ancestors with Christian ones. It was seen as a liminal time, when the spirits or fairies (the Aos Sí), and the souls of the dead, could more easily come into our world. It was believed that the Aos Sí needed to be propitiated to ensure that the people and their livestock survived the winter.