What makes Harbinger of Metal by Reverend Bizarre notable?

'Harbinger of Metal' received critical acclaim for its ambitious compositions and dark themes, contributing to the revival of classic doom metal aesthetics. It has since influenced numerous bands within the genre and is often cited in discussions about essential doom metal albums from the early 2000s. Released in 2003, 'Harbinger of Metal' is Reverend Bizarre's debut full-length album, marking the band's emergence in the doom metal scene. This release came after their successful EP 'In the Rectory of the Bizarre Reverend' (2002), which helped establish their sound and fanbase. The album solidified their identity as key players in the Finnish doom metal movement.