Nergal

The arch-demon Nergal is a major antagonist in the Landmark Universe and one of the central figures in The Purge storyline. Formerly a Mesopotamian war deity, Nergal has brokered a deal with The Book Master to destroy The Chamberlain Knights and regain dominion over the mortal realm. As a member of The Infernal Triumvirate, he one of the supreme powers of The Beyond, surpassed only by The Grim Reaper and The Lords of Judgment.

Crossover Storylines
Nergal leads the attack on Chamberlain City during The Purge, obliterating Gallows Hill in a cascade of hellfire. In a subsequent confrontation with The Knights, he makes short work of Excelsior and battles The Miracles to a standstill. The struggle reduces The Westside to ashes, resulting in the complete destruction of Radcliffe. Shrugging off further assaults by Io Saturnalia and Platinum Ice he is finally stopped in his tracks by The Immortal Selina while the city literally disintegrates around them.