Oathlamp of Accord

This hooded lantern takes the form of a translucent prism. It functions as a normal Hooded Lantern, except that it isn't fueled by oil, but by oaths. While you're holding the lantern, you gain a +1 item bonus to Diplomacy checks.

Activate—Announce Oath ↺ (light, mental)

Trigger You make a promise in good faith

Effect The oathlamp of accord sheds light without consuming fuel until the promise you made is broken or fulfilled. The GM adjudicates whether a spoken promise is broken or fulfilled. This light and the shutters to conceal it work as normal for a hooded lantern. Any creature in the light of the oathlamp becomes aware of the contents of the oath, along with who made it and how long ago.