"Dark fantasy oil painting, Duergar King seated upon the Stone Throne in the great fortress-city of Gracklstugh, completely bald with gray granite-like skin covered in deep mineral veins that pulse with faint geothermal energy, pupil-less eyes like polished obsidian reflecting the forge-fires of his city, broad-shouldered and powerfully built even for a duergar, visibly older with deep crevice-like wrinkles that resemble geological strata. He wears a crown forged from fused Underdark metals: adamantine, deep iron, and shimmering faerzress crystals that glow with unstable magic, and robes of petrified fungus leather over stone-scale armor fused to his body. His throne is carved from a single massive stalagmite, decorated with captured drow weapons, broken mind flayer tentacles, and enslaved earth elemental essences trapped in crystalline prisons. Around him: the vast throne room of Gracklstugh with towering basalt columns, massive subterranean forges in the distance casting orange glow, rivers of molten metal flowing through channels in the floor, and thousands of duergar subjects toiling in organized industry. He holds a scepter of pure adamantine topped with a captive fire elemental, expression combining ruthless intelligence, centuries of paranoia, and absolute authority. Three-quarter view from slightly below throne level, ultra-detailed textures of stone, metal, and magical energy, 8K resolution, style of epic dark fantasy illustration with Baroque underground grandeur, emphasizing immense scale, industrial might, and oppressive monarchial power."