Wondrous Item

Uncommon

While holding this lantern, you can use an action to speak its command word to make it ignite with a purple flame. The flame produces as much light as a normal lantern and can only be extinguished by using an action to speak its command word again. While holding the lit lantern, you can see into the Ethereal Plane within the lantern's bright light. The lantern's light stays purple on the Ethereal Plane, despite everything else being in shades of gray.   While holding the lit lantern, you can use an action to take a deep breath and blow into the flame, causing a 15-foot cone of purple fire to erupt from the lantern in the same direction. Each creature within the cone must make a DC 13 Dexterity saving throw, taking 3d6 fire damage on a failed save, or half as much damage on a successful one. Any object in the cone that isn't being worn or carried, as well as any creature that failed the saving throw, is outlined in a purple light that glows for 1 minute. For the duration, a glowing creature or object can't benefit from being invisible. Once this property of the lantern has been used, it can't be used again until the next dawn.