What makes Blodsvept by Finntroll notable?

'Blodsvept' debuted at number 19 on the Finnish Albums Chart, showcasing Finntroll's growing popularity. The album received positive reviews for its energetic sound and intricate compositions, with critics noting its successful blending of genres which has influenced subsequent folk metal acts. Released on January 1, 2013, 'Blodsvept' is Finntroll's fifth studio album, following their 2010 release 'Nifelvind'. At this point, the band had solidified their identity within the folk metal genre, combining traditional Finnish elements with aggressive metal sounds, appealing to both metal and folk audiences.