This album is known as a turning point in Helloween's career, as it marks the band's return to their power metal roots after a commercial failure in their previous album, the progressive rock and pop-influenced Chameleon.
After an alcohol and drug-related incident in Japan, drummer and co-founder of the band Ingo Schwichtenberg was deputized first by the session-drummer Richie Abdel-Nabi, then on a more permanent basis by former Gamma Ray drummer Uli Kusch.
After two highly controversial studios projects and a live album, Helloween parted company with EMI records, aligning themselves with the more modestly sized Raw Power (an imprint of Castle Communications). Nevertheless, the effect of Deris and Kusch was to re-energize their collective fortunes. In Japan, "Master of The Rings" debuted at the top international album chart selling more than 120,000 copies.