a double-edged sword

something that causes both advantages and problems His great intelligence was a real double-edged sword because he never felt he could communicate with ordinary people.

Common Names:

Name	Pronounced	Usage
Marjukka	MAHR-yook-kah	Finnish
Bishan	-	Indian, Hindi
Setare	-	Persian
Kurt	KUWRT (German), KURT (English)	German, English
Andie	AN-dee	English
Rama (2)	-	Hinduism