For ten points, name this alleged ability of some people to place a curse on somebody just by looking at them.
Among the natives of the Philippines, a phenomenon similar to this one is known as "Usog". Among the Zoroastrians, this phenomenon is known as "Bla Band". Peter Walcot published an extensive 1978 study of this phenomenon among the Greeks, who call it "vaskania." This phenomenon is alluded to in Verse 5 of Sura 113, known as the al-Falaq Sura, and among the Turks the Nazar amulet is said to prevent this phenomenon. Among other Muslims, a symbol named for the daughter of Muhammad, Fatima, is used to prevent this. Among the Jews it is believed that fish are immune to this phenomenon, and some Jews seek to prevent this phenomenon by using the Hamsa symbol, also known as the Hand of Miriam. This phenomenon is believed to occur when one person is envious of another and may be involuntary. For ten points, name this alleged ability of some people to place a curse on somebody just by looking at them.
Among the natives of the Philippines, a phenomenon similar to this one is known as "Usog".
{evil eye}