Flamestrike, that is focusing on flavor text that is meaningless. My decision to include an admittedly superfluous Star Wars reference was an attempt to add a laugh to a long post.
By not addressing the rules portion of the post, should we assume capitulation on the points stated?
The Arcane Canon rules also state this:
If it is forced to make an ability check or a saving throw, treat all its ability scores as 10 (+O).
So if the Arcane Canon is just an object, in most circumstances it will have no chance at a Saving Throw.
If the Arcane Canon, is in a new category as a "magical object", then it at the discretion of the DM, using the guideline of "common sense " per the DMG, when the Arcane Canon does get a Saving Throw, it is just a straight roll of a die 20.
In either circumstance, the Arcane Canon is quite susceptible to being attacked.