I always liked this song by Black Sabbath but being performed here by the essentially the same band with a new moniker, “Heaven and Hell” to avoid infringement with Ozzy over the BS name. Tony Iommi’s finger picked guitar alternates with a sledge hammer guitar riff. Very sinewy, melodic bass work by Geezer Butler, too. And, of course, Iron Lungs Ronnie James Dio, in a performance shortly before his death. Epic.