Gothmog

Gothmog (Sindarin IPA: [ˈɡoθmoɡ] - "Strife and Hate") was the Lord of Balrogs during the First Age, and the greatest Balrog ever to walk Middle-earth. As the High Captain of Angband, his only equal in rank was Sauron. He fought many battles in the name of his master Morgoth, and was personally responsible for killing two of the High Kings of the Ñoldor.

Gothmog, like the rest of his kind, carried a fiery whip into battle, but he was also known to have wielded a great black axe, which was feared by elves across the continent of Beleriand.