Vecna is a fictional character from the Dungeons & Dragons universe, known as a powerful lich and later a god. He is often depicted as a master of secrets and dark magic, seeking to gain ultimate knowledge and power. Vecna is famous for his missing hand and eye, which are powerful artifacts in their own right. In the lore, Vecna was once a mortal who ascended to lichdom, becoming a formidable undead being. His influence extends across various campaigns and settings within Dungeons & Dragons, making him a significant antagonist for many adventurers. His legacy includes themes of betrayal, ambition, and the pursuit of forbidden knowledge.