Chicken

External
The construct is made out of what appears to be bronze, though combat with it has proven whatever the material actually is is far more resilient. It is covered in intricately crafted bronze feathers save for its masklike face in which the eyes sit and its legs, which appear to be a just-as-resilient silver.

The eyes are some sort of stone that appear as a different precious mineral to all who view it, typically the viewer's favorite crystal or stone.

Internal
(Internal details courtesy of Phixis and Dan)

The inside of the construct is mostly the same material as the outside. The innards are suspiciously empty of any mechanisms that would serve to allow the construct to move, save for superfluous gears ringing the 'throat' and a large orb that is apparently its power source.

Powers

 * Extremely resistant to external physical attacks.
 * Capable of shooting lasers from the gems that make its eyes.
 * Capable of expelling electricity from its 'throat' when its mask opens. Notably, its core is vulnerable during such an attack.
 * Becomes extremely hot when functional.
 * "Feathers" are thin and sharp, making being near its wings extremely dangerous.
 * Capable of flight despite its (likely immense) weight. Magic?

Historical Notes
This artifact's history is unfortunately entirely unknown. It itself claims there is damage to its memory banks.

Discovery
Discovered in a scorched field in the Arathi Highlands via a marking on a map liberated from a group of goblins during the mission to retrieve the Statue of Chill.