Item Type: Wondrous Item

Item Rarity: Uncommon

Requires Attunement: No

D&D Beyond: Gem of Brightness

Source: Dungeon Master’s Guide

Consumable: No

This prism has 50 charges. While holding it, you can take a Magic action and use one of three command words:

• First. The gem sheds Bright Light in a 30-foot radius and Dim Light for another 30 feet. This uses no charge and lasts until you repeat the command as a Bonus Action or use another function.
• Second. Expend 1 charge to fire a brilliant beam at one creature within 60 feet. It must succeed on a DC 15 Constitution save or be Blinded for 1 minute, repeating the save at the end of each turn.
• Third. Expend 5 charges to flare with intense light in a 30-foot Cone. Each creature in the Cone makes the saving throw as if struck by the second command word.

When all charges are expended, the gem becomes a nonmagical jewel worth 50 GP.