What poetic devices are used in "Ozymandias"?

There are a number of poetic devices at work in Percy Bysshe Shelley's "Ozymandias." Three of the most effective are the alliteration, metaphor, and personification that appear in the work. They are made even more effective when they are combined, as in the two examples I will discuss.On line five, the phrase "sneer of cold command" presents alliteration, or the repetition of an initial consonant sound in "c," to further enhance the reader's understanding of the expression on the broken statue's face. The hard "c" sound near the word "sneer" suggests that the ruler personified was very distanced. This can be understood from the command being "cold" (which is also a metaphor, as it makes the reader think the rule was freezing), but also the repeated short "c" also shows off that separation between the rule and his subjects.On line fourteen, the two appear again in the phrase "the lone and level sands stretch." Here we see alliteration in the repeated "l" sound of "lone and level" and "sands stretch," but unlike the alliteration in line five, the repetition here creates a long-lasting sound, which suggests that the crumbled statue, and the memory of the ruler's terribly legacy, will go on forever, never changing. This is also suggested by the use of "level sands." Finally, the use of "lone" and "stretch" personifies the sand, to leave the reader with the image of solitude, despite being surrounded. The sands are not "lone"; they are literally surrounded by more sand. By using this phrase, Shelley stresses the idea that one can be isolated even when immersed in a sea of humanity.