3. Priests are to be tolerated, for they are empowered by the gods, but they are not gods themselves. ***"Their powers"*** should not be embraced anywhere other than the shrine of your deity.

IF none of the healing items are affected by spellbane, then that must mean that there's a commune since it's a "divine" item. And, as such, they should fall under the 3rd commandment of the Village Tablet.