Item Type: Weapon

Item Rarity: Uncommon

Requires Attunement: Yes

D&D Beyond: Weapon of Warning

Source: Dungeon Master’s Guide

Consumable: No

As long as this weapon is within your reach and you are attuned to it, you and allies within 30 feet gain:

• Alarm. The weapon magically awakens each subject who is sleeping naturally when combat begins. It doesn’t wake a subject from magically induced sleep.
• Supernatural Readiness. Each subject has Advantage on Initiative rolls.