Blame Jack Vance and Encounter Critical...
Roughly twenty years ago he emerged from the wastes of the Greater Glow, followed by his henchmen and soldiers, and began a campaign to bring the Western Badlands under his iron heel.
Darath Ymph, The Deranged Tyrant, a strategic and tactical genius of great vanity who is the de facto ruler of the Western Badlands and who aims to conquer the known civilized lands and make himself Autarch.
Darath Ymph, a tall Hyperborean of patrician aspect and possessing an impressive black mustache, clad either in his sinister black war harness or in foppish finery of lilac, mauve, lavender, teal, and similar hues. Darath Ymph, a master of fencing who has no qualms personally slaying those who have displeased him with the red energy blade of his Phasic foil.
Served by his Vizir, the lich Sorcerer Gelgethea, and his fanatically devoted army: the reanimated Skeletroopers; the psychic slime warriors in their black exo-suits; his elite Andorian battleguard; and many others eccentric and fierce of aspect.
His throne is Skullstone Skyisland, which hovers miles above the Glow Pit, his servitors flying out in gleaming chrome skull-shaped sky vessels to do his bidding and enforce his will over the Western Badlands.
Located deep in the bowels of Skullstone Skyisland is a labyrinthine complex of tunnels and chambers, known as "The Proving Pits of the Deranged Tyrant," where those who seek the favor of Darath Ymph prove their mettle with blade, spell or stealth. These Proving Pits are said to have several connections to the pan-dimensional meta-dungeon "The Black Ziggurat."