Developed a new unit-based mechanic for the SWU-Karabast/forceteki repository, focusing on the introduction of the Flarestar Attack Shuttle feature. This unit grants an Advantage token to a target unit both when played and when defeated, adding a layer of strategic depth and token-based interaction to gameplay. The implementation leveraged TypeScript for core logic and incorporated unit testing to ensure reliability and maintainability. Throughout the process, clear commit messaging and asset referencing were maintained, demonstrating a disciplined Git workflow. The work enhanced gameplay balance by influencing both play and defeat states, contributing to a more dynamic game development environment.