Locksmith's Bane

Uncommon Magic Item
This odd looking key thrums with thunderous energy. It holds 3 charges, of which a single charge can be used to cast a modified knock spell. This modified knock spell acts in many the same ways as the normal spell, but produces a loud explosion. This explosion is easily audible 300ft away, and audible 1200ft away. The explosion produces will destroy most mundane lock, hence the name. Locksmith's Bane regains 1d3 charges if left overnight on a public altar to Olidammara, the Laughing Rogue.