Answer:
A person or thing that makes an action or process easy or easier
It would probably be a metaphor hope this helps.
A hero is a savior figure, he stands up to injustices of people through acts of bravery and courage. He stands up against all odds for a specific cause. A King merely rules through ascension to the throne. Beowulf not only rids the Danes of Grendel, but also his mother and the dragon.
They both attempted to conquer multiple countries
How trees really benefit the planet and what society would look like if there were none left