Death Invoker incorporate older speed metal material, including rhythms that develop ideas Metallica used, and death metal from the period after Sarcófago, into Sarcófago-inspired ripping primitive black metal. These songs tend to be short and of relatively circular development that builds off of verse-chorus songs with a few deviations and transitions, but this band really know how to set the stage for a song.
Death Invoker - "Demo 2010" review and samples