The Question and Answer section for Percy Shelley: Poems is a great resource to ask questions, find answers, and discuss the novel.
"Ozymandias" - ??? The statue, although now decomposed, represented the rule of one of the great Pharoahs. His rule covered a vast area of land and was thus not just large because of its size, but vast, because of its influence.
Sorry, I do not have the anthology you are referring to.
In line 6-7 there is another living figure put into the poem, the "sculptor", who makes a statue representing the "passions" Ozmaddias. Even though the statue is dead, the passions from it survive.