Final answer:
In Greek mythology, King Eurystheus can be described as the threshold guardian archetype in the story of Hercules.
Step-by-step explanation:
In Greek mythology, King Eurystheus can be described as the threshold guardian archetype in the story of Hercules.
As a threshold guardian, Eurystheus serves as an obstacle or a challenge that Hercules must overcome in his journey. He assigns Hercules punishing tasks as a form of penance for his crimes.
However, it is important to note that Eurystheus does not play the role of a mentor, shapeshifter, or shadow archetype in the story.