Palorchestes azael (Australian large extinct marsupial, so called because of its strange shape)
The title track features a chant consisting of several angelic and demonic names from Christian mythology, as well as names from Jewish mythology and The Book of Enoch: Azazel, Sariel, Koshbiel, and Shamsiel, Ananel, Sethiel, Raziel, and Zaquiel.
This power was so huge, it caused Hell's main three figures - Lucifer, Azazel and Beelzebub - to form a triumvirate to defend themselves should the Great Darkness decide it wanted Hell as its realm.