Jiangshi

The Jiangshi is a type of undead that will greatly vary in appearance depending on the previous person's life. The exact origin of the ritual required to make a mortal into this powerful undead is unknown. Legends say that it came from Tamura, during the Sumer Empire's invasion of that nation.

The Sumer Empire vampires were absolutely sure that they were the superior vampiric race, until they found themselves being rooted out and suffering great loses due to the natural prowess of the Tamurian people and their Jiangshi overlords. Regardless, they still managed to bring some version of the ritual with them before giving up on their conquest.

The body of a Jiangshi is well preserved into a type of magic oil. This is very important to preserve the physical capabilities of the reborn individual. If the Jiangshi is preserved right after death, after being brought back to life, it will be indistinguishable from normal humans. If the body already started decomposing, however, it will forever remain as a walking dead.

The body then is brought to life by using the energy of a formless spirit caught in a trap. That spirit could become an angel or demon, but instead it's energy is bound to the person's dead body, preserving it and giving them power.

However, the Jiangshi must feed on the natural energy produced by the human body. This energy is known as Ki or Chi, depending on the Tamura region. This could be done with a simple touch. Many well preserved female Jiangshis will seduce mortals to drain them of their essence and feed the spirit sustaining them.

The only way to truly destroy a Jiangshi is by destroying the connection between the body and the spirit sustaining it. It can be done by using powerful magic, specially blood magic, that burns the soul itself.

Upon death, the Jiangshi's body will assume the supposed aged of their corpse. Become instantly decomposed if young or with only the bones remaining if old.