[whswhs]

I thought of Strategy, too, but I have doubts about it. It seems not to fit closely, in more than one way: standard strategy is used to make decisions for large forces and for campaigns that last through multiple engagements, and also standard strategy is used for two forces that are each actively seeking to defeat the other. The last seems especially relevant: If the mark thinks that you're trying to con them, and tries to oppose you, you've already failed. So I don't think there's the oppositional element.