1970s Retro Dark Fantasy Wizard Book Cover

dcd@rkf@ntsy. 1970s retro dark fantasy book cover art, dungeons and dragons style, Full-body wide view, low angle, a solitary wizard in a long dark robe and tall pointed hat stands at the edge of a rocky precipice, occupying the foreground, his long greenish beard and staff visible, hands clasped in front, facing forward, surrounded by swirling clouds. A vertical bolt of yellow lightning descends from the stormy sky behind him, illuminating the clouds with a greenish glow and casting dramatic highlights on his figure, while scattered tiny stars dot the background.