The band name derives from the black magic used by some Mexican drug dealers to inspire fear in religious locals. The publicity surrounding the release of Matando Gueros painted a similar picture, alleging that the band were, in fact, seven psychotic Mexican drug barons, all Satanists, led by vocalist Juan Brujo, and featuring three bassists (Guero Sin Fe, Fantasma, Hongo) for a particularly heavy bottom end. The line-up was completed by Asesino on guitar, Greñudo on drums and the mysterious Jr. Hozicon/Director Diabolico. Other members also were Engrave (drums), El Angelito (drums), Hongo Jr. (drums), Cristo De Pisto (guitar).