The hero's journey involving a battle against tyranny can be best exemplified by Theseus in Greek mythology. He is renowned for defeating the Minotaur, a symbol of oppressive power held by King Minos of Crete. By navigating the labyrinth, Theseus not only rescues the Athenian youth sacrificed to the beast but also restores freedom to his people. His journey reflects the struggle for justice, courage, and resilience against oppression, resonating with themes of liberation that are still relevant in modern narratives.