The reason why it is significant that the angel who lets Virgil and Dante into the City of Dis is only armed with a small wand is:
This refers to the first part of the epic poem written by Dante Alighieri where he recounts the experiences of Dante as he goes through hell and is aided by the Roman poet VIrgil.
With this in mind, we can see that there is the fear by Dante as he tells VIrgil of the story when a demon from hell came to torment him and there is the blockade by fallen angels who were about to summon Medusa.
Read more about Dante's Inferno here:
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