In the distant times, before even iron had been smelted by humankind and when the dragons were young, one of the earliest of the human empires was that of King Enki of Urim. The main Goddess of his Empire was Inana, and her highest priestesses were the *en* priestesses at what was then the great temple of E-kic-nu-jal. Each of these at the age of seventeen was assigned a soldier from Enki's army to guard her, both from any who might seek to kill or kidnap her, and from the temptations of males. Should an en priestess be found to have lost her virginity, it was her soldier who was to pile the earth over her bound, but still very much alive, body.
If he died first, he would be given a decent burial, but if she died first, be it a violent death, a death by disease or just one of extreme old age, he would be at once captured and forced to become a Dumuzid, a representation of a God-King of old who was, according to the legends, handed over to the gala demons by Inana for not mourning her when she was briefly trapped in the underworld.
First, he would be dressed in regal robes, a copper crown placed upon his head, and then he would be held firmly down upon an altar to Inana and, after the proper prayers and incantations had been said, would have his heart cut out with a sharp flint knife. The heart would be filled with a number of spices and powders which, once the heart had been dried in the sun, would become explosive.
A specially sharpened bronze sword was placed in the body's right hand, the heart in the left hand, and it would be placed in the burial chamber and covered in salt and natron, which, along with the dry air, would preserve it in most cases.
After the funeral had taken place and the dead en priestess was buried with food, drink, and gold, jewels and fine clothes for use in the afterlife, the final prayer/spell was cast and the tomb sealed up. Should someone come near the tomb with the intention of robbing it and fall asleep within a few miles of it, the Dumuzid would haunt his dreams until he or she either gave up on the robbery or carried it out. In many cases the nightmares alone were enough to prevent tomb robberies before they happened.
Should the tomb be raided, then any light was enough to bring the embalmed body to it's feet, and it would advance to close quarters, slicing with the blade and at the right time, hurling the heart, which would explode when it hit anything. Should it hit a human body, it would blow a large hole in the area touched, enough to blow off a limb or blow open a chest, a head or a stomach. Should the heart miss it's target and only slightly wound the tomb-robber, then the spices both made even a small wound hugely painful until washed clean with water, and created a short term halucination of not one but ten advancing Dumuzids, enough normally to make the robber flee.
Lastly, the explosion would also, in the days when the tombs were young and guarded by human guards on the outside, alert the guards that the tomb was being robbed. The penalty for tomb robbers captured alive is to be made into Dumuzids, so their undead bodies can guard the tomb for eternity.
Much like Bandage Beasts they are almost unburnable by fire, but water will burn them like acid and cause rotting whenever it touches them, as it is the dryness that has kept them preserved for so long.It is unknown what an activated Dumuzid does, should it defeat the tomb robbers. It might be that it would think itself alive and leave the tomb to search for it's long-dead friends and family.
It cannot speak due to a dry throat,and should it drink, it's throat and mouth will rot away due to the water.