A badge, made of material matching your rank, indicating your membership in the Sentinels. Badges have a few magical-mechanical functions:

1. The badge enables you to copy and magically interact with notifications on Monster Boards.

2. The badge can be tracked. It is typically tracked only in the case of adventurers who didn't make it home, so other adventurers can recover them.

3. The badge tracks the monsters you've defeated.