Krosus is a massive doom lord and the fourth boss of the Nighthold. During the battle for the Broken Shore, Krosus was summoned by Gul'dan to kill Tirion Fordring, after which he was defeated by the combined forces of the Alliance and the Horde to just appears back in Nighthold for revenge.

This colossal doom lord, one of the largest and mightiest creatures in the armies of the Legion, was defeated at the Broken Shore through the combined might of the greatest heroes of the Horde...