Which scene from the play best exemplify the theme that absolute power corrupts

Faustus engages in trickery, showcasing the theme that absolute power corrupts even the best individuals. He uses magic to make a knight's head sprout horns and to sell a bewitched horse to a horse dealer. He even disrupts a banquet held by the Pope. Instead of using his abilities for noble causes, he wastes them on trivialities. Once he experiences power, he loses focus on his true aspirations.