Not all witches are created equal. There are ugly evil witches, beautiful good witches, and many variations in between. Some people think that there isn't really any such thing as a witch or witchcraft, while others believe that it's very real. Historically the Abrahamic religions of Judaism, Christianity and Islam have considered witchcraft to be evil; incompatible with belief in Yahweh, God or Allah.
In medieval Europe, anything that wasn't understood was thought to be magic or witchcraft. Witches were thought to have made a pact with the Devil that granted them powers to cause illness or influence the weather or see the future. Of course, in that era nobody understood how infectious diseases were spread or how the weather worked. Any misfortune must therefore be either a punishment from God for some sin, or else the result of witchcraft by a person under the Devil's influence. Any person (mostly women--up to 85% of accused witches were female) who was different in some way, or didn't attend church regularly, or who perhaps had simply offended someone, could be accused of witchcraft. Illnesses that in the 21st century we call epilepsy or schizophrenia, in the 14th century were called manifestations of sorcery; either by the afflicted person or by the action of some other person. And of course, every student of American history has heard of the infamous Salem witch trials of 1692 and 1693, which resulted in the execution of 20 accused "witches."
Fictional portrayals of witchcraft have been more sympathetic, as in J.K. Rowling's Harry Potter books and Glinda, the Good Witch in The Wizard Of Oz. Our witch costumes range from the "classic" image of a long black dress and cone-shaped hat to cute, colorful and whimsical ensembles that suggest white magic. And of course, we have a full range of licensed Wizard of Oz and Harry Potter costumes. We have everything you need to concoct a magical masquerade!