What is funny from the fifty first dragon by Heywood Broun?

In "The Fifty-First Dragon" by Heywood Broun, the humor arises from the absurdity of the protagonist, Gawain, who believes he can defeat dragons by reciting a magical phrase he was told by his mentor. The irony is that despite his confidence, he ultimately learns that the magic is more about his belief than any actual power. Additionally, the exaggerated nature of the dragons and Gawain's over-the-top bravado create a comedic contrast that highlights the ridiculousness of the situation. This blend of fantasy and humor makes the story both entertaining and thought-provoking.