an ace in the hole

(American)

an advantage that you have that other people do not know about The local team has an ace in the hole with their new player.

Name	Pronounced	Usage
Marietta	-	Italian
Christabella	kris-tə-BEL-ə	English (Rare)
Hyeon-Ju	hyun-joo	Korean
Feige	-	Yiddish
Moran	-	Hebrew
İLkİN	-	Turkish, Azerbaijani