Underlord

Trivia

 * In DotA Abyssal Underlord was called Pit Lord. His title was likely changed to avoid a possible copyright infringement with, since the Pit Lords are a race of demons in the  universe. His name, Azgalor, is also an existing character within the Warcraft franchise.
 * Initially, he was renamed to Pyre Lord, according to the Bastion Announcer Pack.