Alastor

Alastor refers to a number of people and concepts in Greek mythology:Alastor, an epithet of the Greek God Zeus, according to Hesychius of Alexandria and the Etymologicum Magnum, which described him as the avenger of evil deeds, specifically familial bloodshed. As the personification of a curse, it was also a sidekick of the Erinyes. The name is also used, especially by the tragic writers, to desig... (Wikipedia)