Rudyom's Wand

Rudyom's Wand is a magical device which causes blackrock to explode. It appears in Ultima VII and Ultima VII Part Two

Description
Before the corrupted ether caused his slow descent in senility, the mage Rudyom had worked extensively with blackrock, hoping that he could eventually create a easy means of using appropriate magical, magnetic and electrical energies to render it pliable. Much to his frustration, however, the wand he had designed for this task failed to create malleable blackrock, and instead caused the substance to violently explode. Disappointed with his failure, the mage set the wand aside, thinking it useless.

The Avatar, however, would come to need of a device which could annihilate blackrock, as the hero would eventually be required to destroy the Guardian's Black Gate. With prompting from the Time Lord, the Avatar would seek out Rudyom's wand, which the ailing magician would gladly allow them to take - and using it, the hero would shatter the blackrock moongate just as the Destroyer of Worlds sought to enter Britannia.

Eighteen months later, Lord British would send the wand with the Avatar on their voyage to the Serpent Isle, only to have the hero lose it shortly after making landfall to the fury of a Teleport Storm. When it was at last retrieved in Vasculio's haven in the midst of Skullcrusher, it was discovered that its functioning had been warped during teleportation, and that it now only functioned to make people sneeze.

Trivia

 * In the SNES Port of Ultima VII, Rudyom wandered into a  cave to dispose of his wand, accidentally leaving it in the lair of a dragon.
 * Interesting enough, it is called a Transmuter Wand in the second edition of The Offical Book of Ultima.