Heart of the Titans is an Atlantean myth technology in Age of Mythology: The Titans that is available to worshipers of Prometheus and can be researched at the Temple. Once researched, it reduces the wood, food, and gold cost of turning units into heroes by 20%.
Mythology
“ | The Titan Prometheus, god of daring thoughts, loved his creations - humankind. He sought always to make their troubled lives better, even in spite of other gods at times. He even bestowed upon his favorite mortals the secrets of the Titans, giving birth to a line of heroes who would rattle the foundations of Olympus. | ” |