A two-member war machine built around Aubert Mutilator on vocals and programming and Iscariot Destructor on guitars and bass, Mutilação Anticristã traffics in raw, lo-fi black/death metal with an uncompromising anti-Christian and satanic worldview. The duo released "Metal Negro Anticristo" in 2012 and followed it with the even more abrasive "Noite de Sexo Bestial e Profano" in 2014, both recorded in the Sergipe underground without concession to polish or accessibility.

My Immortal Beloved has cultivated a steady independent discography since their debut Inferno Sensual in 2012, continuing through Estrada em Chamas (2016) and No Silencio do Lago (2019). Their black metal leans toward the atmospheric end of the spectrum, with a raw production aesthetic that keeps them squarely in the underground.

One of the longer-running acts in the Brazilian underground black metal scene, Mysteriis formed in 1998 and debuted with About the Christian Despair (1999) before resurfacing with Hellsurrection in 2012 via Heavy Metal Rock Records. Their blasphemous anti-Christian venom and raw production align them with the second-wave tradition, and they have maintained a fiercely independent, uncompromising approach across decades of activity.

Mystic Ethan emerged from a series of name changes — operating as Satan Church and then Mistic before settling on the current alias around 2021 — and pursues a misanthropic, anti-Christian style of raw black metal. The project is entirely independent and keeps a low profile, releasing material through Bandcamp without label support.

Formed in Salvador, Bahia, Brazil in 1989, Mystifier are one of the foundational acts of the Brazilian black metal underground. Their debut full-length Wicca (1992) and its follow-up Göetia (1993) established a ferocious and malignant sound steeped in occultism and anti-Christian themes, earning them widespread recognition in the international underground. After an eighteen-year gap between studio albums, Protogoni Mavri Magiki Dynasteia (2019) on Season of Mist marked a powerful return.

Mythological Cold Towers deal in slow, heavy doom that draws equally from the death-doom tradition and epic doom's grandiose sweep, with lyrical themes orbiting ancient South American civilizations, mythology, and lost monuments. Albums like Immemorial (2011) and Monvmenta Antiqva (2015) display the band's ability to balance crushing heaviness with melodic keyboard passages and an almost archaeological sense of atmosphere.

Mørk Visdom crafts raw symphonic black metal steeped in Luciferianism and occult darkness, releasing their debut "Fenrisulfr" through Impaled Records in 2012. The project has remained prolific, with subsequent releases including "Impure Nights of Dense Witchcraft" (2020) and "Obscure Symphonies (The Cursed Chant Of The Fallen Angels)" (2021) cementing their place in the extreme underground.