In a number of comics, Xavier is shown to have a dark side, a part of himself that he struggles to suppress. Perhaps the most notable appearance of this character element is in the Onslaught storyline, in which the crossover event's antagonist is a physical manifestation of that dark side. Also, Onslaught is created in the most violent act Xavier claims to have done: erasing the mind of Magneto. In "X-Men" #106 (August 1977), the new X-Men fight images of the original team, which have been created by what Xavier says is his "evil self ... who would use his powers for personal gain and conquest", which he says he is normally able to keep in check. In the 1984 four-part series titled "The X-Men and the Micronauts", Xavier's dark desires manifest themselves as the Entity and threaten to destroy the Micronauts' universe.