Inheritance Games? I will admit, I've vaguely heard of it but never read it (it is a book, correct?) 

Will be assuming this is a compliment and taking it as so ;)

@Poltergeist, it is. Basically there is this one line that comes back throughout the book where its like, "your either the glass ballerina or the knife in this house," meaning your either a token to be used, or the player.