There are at least two artists that perform under the name Black Witch:

1. Black Witch formed in Mossoro, Brazil, in May 2015. They released their first EP Aware the following September. The current line up comprises of Lorena Rocha (vocals) , Rafaum Costa (guitar) , Fred Nunes (drums) , Jorge Luiz (bass).
See also Bandcamp for more info and releases.

2. A heavy metal band from Berlin, Spandau, active in the early 1980s Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.