Modern black metal fiends Son's of Balaur will be unleashing their latest album, Tenebris Deos, through Season of Mist on October 14th. While not my favorite new song of theirs to be released so far (that honor goes to "Van Helsing Must Die!"), the new video for "Invocation" is dark stuff. It reminds me of a much more nightmarish and humorless version of Metalacolypse. Watch it below.