The Athame
The athame (or athamé) is a black-handled ceremonial double edged dagger, one of several magical tools used in traditional witchcraft and other pagan religions such as Wicca.
The proper use of the tool was started by the Hermetic Order of the Golden Dawn, in the early 20th century, for the use of banishing rituals. The tool was later adopted by Wiccans, Thelemites and Satanists.