Mystery Key (2024 Dungeon Masters Guide)

common · Wondrous Item

A question mark is worked into the head of this key. The key has a 5% chance of unlocking any lock into which it's inserted. Once it unlocks something, the key disappears.

Mystery Key (Xanathar's Guide to Everything)

common · Wondrous Item

A question mark is worked into the head of this key. The key has a 5% chance of unlocking any lock into which it's inserted. Once it unlocks something, the key disappears.