the joker in the pack

someone or something that could change a situation in a way that you do not expect The independent candidate is the joker in the pack in this election.

Common Names:

Name	Pronounced	Usage
SÌNeag	-	Scottish
Bambi	BAM-bee	English
Raginhard	-	Ancient Germanic
Ioanna	-	Greek, Biblical Greek
AljaŽ	-	Slovene
Stein	[stain]