Evil creatures are often depicted in folklore and mythology as beings that embody malevolence and harm. They can take various forms, such as demons, monsters, or ghosts, and are typically associated with dark magic or sinister intentions. These creatures often serve as antagonists in stories, representing the struggle between good and evil. In many cultures, evil creatures are used to explain natural disasters or misfortunes. For example, vampires are said to drain the life force of their victims, while werewolves transform from humans into beasts under the full moon. These tales serve to instill fear and convey moral lessons about the consequences of wrongdoing.