'my name is Ozymandias, king of kings: look on my works, ye mighty, and despair!' is the volta of the poem. it is a bold statement and an exotic name. it is a departure from regular iambic pentameter. 'king of kings' is biblical imagery, so he is setting himself up as a God. this could be mocking as shelley is an atheist. archaic terms such as 'ye' distance the reader.