The Sword of the Dales

The Sword of the Dales is a good and lawful long sword +3 crafted of highly polished steel/silver, which gives it a mirror like appearance. The hilt is inlaid with gold and precious gems, and the whole weapon glows with a soft blue radiance.

The sword unlocks all chains and manacles within 30 feet of it, but only if the wielder utters the word Merrydale. If someone holding the blade is submerged in water, the sword gives that person the ability to breathe water (as per spell). This function can be used only once per day.

The weapon’s prominent ability is to cause double damage on all magically transformed and magically created creatures. This included golems and other magical constructs or conjured creatures such as elementals. In addition to the above powers, the weapon also reflects all polymorph and lightning based attacks back at their caster. AD&D 2e