This design case centers around a creative assignment given to graduate students studying instructional design. The goal of the assignment is to facilitate mastery of learning theories through the theory-based evaluation of an instructional product, using both research and imagination. By applying learning theories in a practical and engaging manner, students develop a more comprehensive understanding of these theories. The design case documents the design process of the assignment, including the context, initial inspiration, critical tasks, and iterative changes made over the years to improve the learning experience. The rationale behind various design decisions is presented, along with reflections on the learning experience.