Ward of the Lampkeeper

Ward of the Lampkeeper,

Wondrous item, uncommon

This small silvery amulet is carved in the shape of a simple rectangular lantern. Its front window has a latch, allowing it to open or close into a small space. This item has 3 charges, and regains all of them at dawn. As a bonus action, you may use one of these charges. When you do so, you learn the current location of any Undead creature within 60 feet of you. If they are invisible, your next attack is made at advantage. Additionally, when the wearer of this amulet is at 0 HP, they may only ever receive one Death Save fail at a time.