This new magic item for Dungeons & Dragons is a brass key that can lock any ordinary lock. Unfortunately, it can’t UNLOCK anything.
Key of Locking
Wondrous Item, uncommon
This ordinary looking brass key can lock doors, chest, and any locking mechanism with a keyhole. However, the key can not unlock anything. An object that was locked by this key can still be unlocked with its original key.
While you are holding the key, you can use an action to cast the arcane lock spell without the material component. This feature can be used twice each day.
The Key of Locking may seem boring compared to other magic items, but it can be extremely useful for securing an area or preventing enemies from following you through a dungeon. Just make sure to have a way to UNLOCK the mechanisms that you’ve locked. A rogue with lock-picking skills or a wizard with the knock spell should do the trick.
Need to magically secure a door or window? The Key of Locking can also cast the arcane lock spell found in the Dungeons & Dragons 5th edition basic rules.
Arcane Lock. 2nd level Abjuration spell. You touch a closed door, window, gate, chest, or other entryway, and it becomes locked for the duration. You and the creatures you designate when you cast this spell can open the object normally. You can also set a password that, when spoken within 5 feet of the object, suppresses this spell for 1 minute. Otherwise, it is impassable until it is broken or the spell is dispelled or suppressed. Casting knock on the object suppresses arcane lock for 10 minutes.
While affected by this spell, the object is more difficult to break or force open; the DC to break it or pick any locks on it increases by 10.
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