Just wondering, is a unique character one that is non-generic?
Yes. Also, you will want 2 max of MOST characters. However, if the character is one of the 'any character' options in your deck (i.e. AUtO) or is CRITICAL to the success (i.e. Job), then you want more than 2 copies sometimes. I run a Judges deck with 2 of the most important guys (Jair, Ehud, Gideon, and Moses), 2 AwSN, but 3 AUtO since he is so powerful and is 'any' judge at the same time.