Complex sentence: The DC villains that are receiving their own titles and will be a part of "Forever Evil" have brought comparison to the Legion of Doom, because many of the villains are members of the different incarnations of the Legion of Doom.
Split into simpler sentences: The DC villains that are receiving their own titles and will be a part of "Forever Evil". It has brought comparison to the Legion of Doom, because many of the villains are members of the different incarnations of the Legion of Doom.