Worked on the magefree/mage repository to refine the Goliath Daydreamer card’s hand-casting exile mechanic, focusing on improving the accuracy and reliability of its gameplay logic. Addressed edge-case inconsistencies by updating the trigger logic to ensure instant and sorcery spells cast from hand are correctly exiled, aligning the implementation with intended game rules. Delivered the feature in a targeted, single commit to minimize risk and maintain code clarity. Utilized Java and object-oriented programming principles throughout the development process, with clear documentation to enhance developer visibility. The work contributed to more consistent game mechanics and improved maintainability within the codebase.