Gnomish Death Ray

Gnomish Death Ray is one of the deadliest trinkets a Gnomish Engineer can craft. As it binds on creation, only the Engineer who created it can use it. On the other hand, it does not require Engineering to use. You can create a Gnomish Death Ray as a Gnomish Engineer, then drop the engineering profession and still be able to use it.

Background
When Heffen Glitterbows unveiled this weapon, his opus, even the bravest tinkers went pale. Weapons they liked, but this was above and beyond anything they had ever dreamed. Devices are supposed to help the user, they argued, not potentially cause his death! Not on purpose, anyway. The ray is a massive hollow tube that sits on a tripod. The mechanisms inside are fueled mostly by liquid phlogiston and chaos energy; but it is useless without the life force of the user. When activated, the user must stand behind the hollow barrel of the tube. A blue ray extends out the back of the tube, hitting the user in the chest, soaking energy from user, and then converting that energy as ammo for the weapon. Such a ludicrously dangerous weapon has become quite popular in the black markets of both Alliance and Horde camps.

Source
Gnomish Death Ray can be crafted by an Gnomish engineer with 240 skill.

The recipe for this item is taught by the Gnome Engineering trainer.