Underlord

Gameplay
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Audio
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History
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Trivia

 * Underlord is named Azgalor, the Pit Lord in DotA.
 * His title, Pit Lord, was changed to avoid possible copyright infringements with Blizzard Entertainment, since the Pit Lords are a race of demons in the Warcraft universe.
 * His name, Azgalor, was also changed for the same reason. Azgalor was a character from the Warcraft universe as well, who served one of the main antagonists of the Warcraft universe as a well known commander.
 * According to the Bastion Announcer, vo_announcer_dlc_bastion_announcer_pick_pitlord_02.mp3 "Pyre Lord" was also a proposed name for Underlord.
 * Up until the June 23, 2016 Patch, Underlord's title was "Abyssal Underlord". While the rationale of dropping "Abyssal" is unclear, it may have been to prevent confusion with the shorthand terminology of Abyssal Blade.
 * Underlord had been developed since 2012; he already had a beta model, placeholder ability icons and fully finished and working abilities. He could also be spawned in lobbies with cheats enabled for a short while before it was disabled.
 * This suggests that his release was originally planned much earlier (as a comparison, all other heroes were released shortly after their files were added to the game), but was delayed for reasons unknown.
 * Before his release, Underlord was showcased at the All-Star match of The International 2016, played by N0tail. He originally picked Sand King​, but a bit after the start of the game, SirActionSlacks replaced his pick by Underlord.
 * The line Underlord says after killing, vo_abyssal_underlord_abys_rival_20.mp3 "You have my permission to die.", is a reference to the famous line "When Gotham is ashes, you have my permission to die", said by the villain Bane from the movie The Dark Knight Rises.
 * Underlord's line when casting, vo_abyssal_underlord_abys_darkrift_03.mp3 "Hold on to your butts!", was spoken by Samuel L. Jackson's character Ray Arnold in the movie Jurassic Park (1993).
 * Underlord was the final DotA hero ported over, before Dota 2 began to feature original heroes.