Diane is the serpent sin of envy .
While appearing to be 15 years old , standing at 30 feet tall , Diane is a 750 year - old Diane of the Giants ' Clan from the land of Megadozer .
Diane is the serpent sin of envy and while appearing to be 15 years old , standing at 30 feet tall , Diane is a 750 year - old member of the Giants ' Clan from the land of Megadozer .