Idol of Disputation
Description: a small ceramic figurine of a leering, fat humanoid (some versions are male, some female). The Idol of Disputation will show up as magical on a standard scan. The Idol is sturdy enough to be dropped, but it will break if deliberately thrown to the ground.
Powers: Normally, an Idol of Disputation generates a field (12 feet radius) that encourages people to argue. It won’t force people to disagree with each other, but if they were inclined to do so anyway this artifact will more or less egg them on. Note that the argument does not have to be hostile, and that the artifact will not impose an emotional state on anyone; universities will often keep Idols around in order to encourage wide-ranging and vigorous student debates in class.