Balrog

In the writings of J.R.R. Tolkien, Balrogs were spirits of fire. The Balrogs originated as Maiar, beings of the same kind as Sauron himself. They were primordial spirits that had allied themselves with Melkor in ancient times, and became the most feared of his servants, especially during the Wars of Beleriand in the First Age. One, possibly the last living Balrog in Arda, was defeated by Gandalf ...