Wondrous Item, Rare (Requires Attunement)
A caged lantern of Deeproot Circle wardlight, carried along the Weeping Front against the things that crawl out of the Bruise. It sheds Bright Light in a 30-foot radius and Dim Light for an additional 30 feet. It has 3 charges and regains all charges when you finish a Long Rest.
Ward Against the Bruise. Aberrations, Undead, and creatures native to the Blight Below have Disadvantage on attack rolls while standing in the lantern's Bright Light.
Warding Flare. As a Magic action, you can expend 1 charge to flood the light with a blaze of true daylight. Each creature of the kinds above within 15 feet makes a DC 15 Constitution saving throw, taking 3d8 Radiant damage and being Blinded until the end of your next turn on a failure, or half as much damage and no Blinded on a success.
Source: Sporebound