Teachers who are positive deviants are the most effective teachers, able to produce results and solutions to problems that others in the learning community cannot. As a result, students in their classrooms usually produce assessment scores that are higher than those of students in their colleagues' classrooms. Teachers willing to learn from their positive-deviant colleagues receive the benefit of learning from an in-house expert--which is why principals who observe a positive deviant in action wish they could capture their essence to create a magic potion they could sprinkle on every other teacher in the building. This article offers several tips on how principals can capitalize on the talents offered by a positive deviant to lead others toward effectiveness. (Contains 3 online resources.)