He joined the black metal band Ragnarok in 2000 as a second guitarist, replacing Sander (whose poor performance at the 'Under The Black Sun Festival' in Germany, got him kicked out of the band). Lord Arcamous first performed with Ragnarok on a tour, self-financed by the band in 2000. At this time, the vocalist for Ragnarok was Astaroth, who had been hired before the 'Under The Black Sun Festival' in early 2000. Following the self-financed tour in late 2000, Astaroth couldn't handle the pressures of touring and was kicked out of the band. In 2001, Lord Arcamous became a fulltime member of the band and took over vocal duties as well as playing second guitar on Ragnarok's fourth studio album, In Nomine Satanas
, released in 2002. They went on tour in 2002 to support the album. This proved to be a very problematic tour, and Lord Arcamous left the band due to personal reasons.