Shar

Shar (pronounced: /ˈʃɑːr/ SHAHR), is one of the oldest deities in Dungeons and Dragons franchise. Also known as the Mistress of the Night, Shar was the goddess of darkness and the caverns of Faerûn, as well as a neutral evil greater deity. Counterpart to her twin Selûne, she presided over caverns, darkness, dungeons, forgetfulness, loss, night, secrets, and the Underdark.

Among her array of twisted powers was the ability to see everything that lay or happened in the dark. Shar's symbol was a black disk with a deep purple border. Shar was also the creator of the Shadow Weave, which was a counterpart and attack upon the Weave, controlled by Mystryl and her successors, before both of the Weaves fell into ruin during the Spellplague.