Oedipus fits Aristotle's definition of the tragic flaw and protagonist almost flawlessly. Aristotle described the protagonist as "someone regarded as extraordinary rather than typical..."(1117). Oedipus freed Thebes from the Sphinx by solving her riddle-- something nobody else had been able to do. The priest in the first scene of Act I calls Oedipus "...our greatest power" (1121) and describes him as rated first among men.