What makes Black Masses by Electric Wizard notable?

'Black Masses' is significant for its exploration of themes related to occultism and drug culture, resonating deeply within the underground metal community. The album received positive critical reception, furthering Electric Wizard's influence on the doom metal genre and inspiring subsequent bands with its unique combination of heavy riffs and atmospheric soundscapes. By 2010, Electric Wizard had established themselves as a leading force in the stoner and doom metal scenes, following their critically acclaimed album 'Witchcult Today' from 2007. 'Black Masses' marked a continuation of their sonic exploration, showcasing a darker, more psychedelic approach at a time when they were solidifying their cult status among metal fans.