In 1986, bassist Vlasta Henych and Törr founder Ota Hereš decided to

In 1986, bassist Vlasta Henych and Törr founder Ota Hereš decided to form the band 666 together with drummer Pavel Konvalinka. Later that year, Milan Háva, who had previously played with Törr, took over on drums, and the trio switched to playing black metal under their old name. At this time, Henych and Hereš shared vocal duties. The band released their first demo tape in 1987, titled Witchhammer . In 1988, due to negative publicity relating to their stage shows, the group was banned from performing by the Czechoslovak government . This situation lasted until 1989, when the band released their second demo, the live recording Törr Gang Live ’89 . The same year, Hereš had to leave the band in order to perform his mandatory military service . Törr released one more demo that year, titled Masturbace mozku , which included guest vocals by Arakain singer Aleš Brichta .