Ofermod is a Swedish black and death metal band founded in 1996 by Michayah Belfagor, taking their name from an Old English term meaning excessive pride, drawn from a 1953 J.R.R. Tolkien essay. The band's early single Mystérion Tés Anomias (1998) became a cult artifact in the Swedish underground, and after years of inactivity tied to Belfagor's personal circumstances, the band resumed with the debut full-length Tiamtü (2008), produced by Magnus Andersson of Marduk. Subsequent albums Thaumiel (2012) and Sol Nox (2017) extended Ofermod's reputation for theologically dense, occult-oriented black metal.

Omega Infinity is an international black/death metal project formed in 2018, led by Tentakel P. of the German avant-garde black metal band Todtgelichter and Australian vocalist Xen of Ne Obliviscaris. Their debut album Solar Spectre (2020), released on Season of Mist, fused raw 1990s black metal aggression with harsh electronics and ambient textures built around cosmic and solar themes. A second album, The Anticurrent, followed in 2023 on the same label, cementing the project's identity as one of the more unconventional acts in modern extreme metal.

Opeth are a Stockholm progressive metal band whose music has become one of the most distinctive bodies of work in modern heavy music. Formed in 1990, the group began with death metal roots before Mikael Akerfeldt's songwriting pushed the band toward long-form structures, acoustic passages, jazz and folk harmony, progressive rock atmosphere, and dramatic shifts between growled heaviness and clean melancholy. Albums such as Orchid, Morningrise, My Arms, Your Hearse, Still Life, Blackwater Park, Deliverance, Damnation, Ghost Reveries, Watershed, Heritage, Pale Communion, Sorceress, In Cauda Venenum, and The Last Will and Testament show a restless evolution rather than a simple genre path. Opeth fit metal scope directly through progressive metal and death metal, even during periods when the band emphasized clean vocals and 1970s progressive rock textures. Their songs often feel like dark narratives, moving through sections that can be brutal, pastoral, ornate, or eerily quiet. Akerfeldt's voice and guitar writing are central, but the band's power also comes from ensemble dynamics and careful arrangement. Opeth's importance lies in making extremity and elegance coexist, proving that metal could be both crushing and intricately composed without losing emotional force.