subsequently became a key formulator of the post-thrash metal subgenre of groove metal. It would not be until nine years after forming that the band saw its first piece of commercial success in its 1990 major label debut, Cowboys from Hell. From there, Pantera became one of the most celebrated heavy metal bands of the 1990s. Despite the generally cold reception of the band’s first four albums from the 1980s, critics have lauded Pantera’s style thereafter; Jason Birchmeier of Allmusic.com …