[1] In June 2015, both Vincent and Yeung parted ways with Morbid Angel,[2][3] alongside guitarist Thor "Destructhor" Myhren.

[5] The band was announced in December 2016, and originally featured guitarists Bill Hudson and Ira Black.

[1] Vincent said that the band would only play music from early albums specifically Altars of Madness (1989), Blessed Are the Sick (1991) Covenant (1993) and Domination (1995).

[1] The band played their first show in Krasnodar, Russia on May 23, 2017,[6] finishing at the Alcatraz Metal Festival 2017, replacing Morbid Angel who had cancelled their European tour dates.

[7] In 2021, Yeung and Black were replaced by Pete Sandoval (also ex-Morbid Angel) and Kelly McLauchlin.