a curse
Examples
Some people possess talent, others are possessed by it. When that happens, a talent becomes a curse.
I never apologized for anything in my life. The only thing I'm sorry about is putting a curse on Roger Ebert's colon. If a fat pig like Roger Ebert doesn't like my movie, then I'm sorry for him.
The basic difference between an ordinary man and a warrior is that a warrior takes everything as a challenge while an ordinary man takes everything as a blessing or a curse.
Beauty without virtue is a curse.
A curse turns against the one who uttered it.
A curse turns around and strikes the one who uttered it in the face.