Final answer:
The question asks about a comparison Iago makes about Cassio through an aside in Shakespeare's Othello, but the provided text is from Antigone and is irrelevant to the query, making it impossible to accurately answer.
Step-by-step explanation:
The question pertains to a character comparison made through an aside in William Shakespeare's Othello, in which the character Iago compares Cassio to another entity or concept using a figurative language device.
In Othello, Iago often uses asides to share his deceitful intentions and manipulative thoughts with the audience. These moments are crucial for the development of the plot and the characterization of Iago as the antagonist.
To adequately address this question, one would need to refer to the specific passage from the play where Iago makes this comparison. Without the exact text reference to the comparison Iago makes about Cassio, the question cannot be answered accurately.
The lines provided from the play Antigone do not relate to the question asked, as they are from a different work altogether and do not concern Iago or Cassio.