William Farrington contributed to the simulationcraft/simc repository by addressing a complex bug affecting Shaman class talent interactions. He focused on correcting the accumulation and application of the Lightning Rod debuff when Conductive Energy or Lightning Rod talents were selected, ensuring consistent behavior across Enhancement and Elemental specializations. Using C++ and leveraging his expertise in class balancing and simulation, William refined the logic governing Lightning Bolt damage accumulation, aligning it with talent configurations. His work improved simulation accuracy and reduced variance in talent-driven outcomes. Over the month, he demonstrated depth in game development and talent system mechanics through targeted, high-impact bug fixes.