Vecna is an archlich and one of Dungeons & Dragons' most famous villains ever. He's gone from a background reference to an antagonistic demigod to a full-blown deity over the game's lifetime. Vecna has only personally appeared in a handful of D&D adventures, but he's managed to be a persistent presence throughout the game and the culture surrounding it.
Source：https://www.cbr.com/dnd-5e-vecna-lore-stats-history/
