The hero Perseus uses the magical item of a reflective shield to defeat Medusa. This shield, gifted by Athena, allows him to view Medusa's reflection rather than direct gaze, which is crucial as her stare turns people to stone. Additionally, Perseus wields a magical sword provided by Hermes, along with other divine tools, enabling him to successfully navigate the deadly challenge posed by Medusa. This myth highlights themes of strategy, divine assistance, and the use of cleverness in overcoming formidable adversaries.