Mephistofeles is a band from Paraná, Argentina. They describe themselves as a proto doom / heavy psych rock. Influenced by Electric Wizard and the likes, they released a few extremely dirty releases.
Mephistofeles is a trio composed by Ismael Dimenza on bass, Ivan Sachar on drums and Gabriel Ravera on guitar and vocals
Further info at: https://mephistofeles.bandcamp.com/