A dark, ethereal scene featuring a skeletal figure dressed in tattered, hooded robes standing inside underground in a DND dudgeon of a gothic castle, shooting  at foes. The figure is holding a mystical, glowing bow, drawing back an arrow that emits a bright, blue luminescence. The skeletal archer stands amidst swirling, ghostly mists, with an eerie, supernatural aura surrounding the scene. The background includes the towering, stone walls and turrets of the castle, with dark, ominous clouds and flashes of lightning illuminating the scene. Below the battlements, an army of orcs is gathered, adding to the menacing atmosphere. The overall atmosphere is mysterious and haunting, with an emphasis on the supernatural and mystical elements. 4k, 8K ,UHD