Natures imply a certain amount of back history, skills, and obligations. I would like it to be possible for players to play their natures as if it were any other player card, except that once they submit the action the Narrator decides whether that card is a strength or a weakness. Lets say I am in a gangland game and I have the "Veteran" Nature. I don't have many good cards to apply to a scene involving a superior so I use my Veteran nature card, since I have been in the organization a long time and should know how to talk to the bosses. The Narrator then decides either if that is a strength, or if it is a weakness, that boss and I have a bad history.