two-edged sword

and double-edged sword

Fig. something that offers both a good and bad consequence. The ability to get your insurance to pay for it is a double-edged sword. They may raise your rates. Her authority in the company is a two-edged sword. She makes more enemies than allies.

Common Names:

Name	Pronounced	Usage
Shulamit	-	Hebrew
Benjamin	['bendʒəmin]
ValÈRe	-	French
Milivoj	MEE-lee-voi (Croatian, Serbian)	Croatian, Serbian, Slovene, Medieval Slavic
Demetra	-	Italian, Romanian, Greek
Georges	ZHORZH	French