Black Magic is the negative use of energies and power by jealous and malicious human beings.
A complete amil or magician can do almost anything with the help of black magic art, except escaping death, saving someone from death and bringing the dead back to life. Following are some examples..
Separation between husband and wife.
Making someone deaf.
Making someone blind
One remains sick all the time.
Making one dreamless
Woman loses her child during pregnancy. The child is killed inside the womb befor he is born.
Animals dont give milk and remain sick.
Making the face look ugly.
Women get periods before the proper time and they cant get close to her husband.
Ptting fear of unknown in one's heart.
One loses his memory. he cant remember anything for long.
Girls don't get proposals anymore
Making the rizq/earnings less. A person is financially made weak.
And hundreds of others..