Enya the Hag

Enya Geil (or "Enyaba Geil" in the English manga) is a minor, fictional character appearing in the Japanese manga JoJo's Bizarre Adventure, by Hirohiko Araki. The character is portrayed as an enemy of the protagonist.

Character
Enya Geil is an ancient woman with two right hands, the mother of J. Geil and an apparent confidante of Dio Brando. She was responsible for granting him the power of the Stand. Her own stand, Justice, takes the form of a massive mist, which can take control of anyone with an open wound, allowing Enya to control them as she would a puppet. Enya is named after the artist of the same name.

In the anime, she is also able to use her mist to morph her appearance into an attractive woman. Her dual transformations were used to wound Hol Horse and trick Polnareff. Her stand was also able to craft the entire city that the group rested at, disappearing to reveal a barren desert.

The tweaked English-manga name may be an oblique reference to both the artist Enya and the Swedish pop group ABBA.

Further revelations
Enya does not reappear after Part III is complete. She is however mentioned a few times in early Part IV, and it is heavily implied that she was responsible for using the Bow and Arrow on Dio, leading to his acquisition of his Stand, The World.