Heart of Slaughter

The Heart of Slaughter is a magical gem created for the specific purpose of trapping the ancient dead known as Zül, the Principle of Slaughter.

It was successfully used by Shinjo Baelon (to become King-Kami Baelon) after a harrowing crusade against the dead king.

Game 5 - The Heart of Slaughter
Before the events of Game 5 - The Heart of Slaughter, the Reach of Zül arranged for the theft of the magical gem during its transport to Nime-Yu.

Possessing the corpse of Simian Jenkuso, Zül faced the Player Characters and was defeated. They reclaimed the gem and once more trapped the undead.

Game Mechanics
The Heart of Slaughter is a unique artefact designed to forever imprison the essence of Zül. Wether because its design was flawed, because the artefact was altered or because the Principle of Slaughter was simply too strong, the result is that Zül managed to retain some degree of freedom.

Zül is not imprisoned in the Heart of Slaughter, but rather chained to it. He has no access to its Materialize charm (as though he does not possess it). The only way he can use Nemessary's Ride is if the Heart of Slaughter is physically inserted into a dead body. Zül can not venture further than two range bands away from the Heart by any means, even if immaterial. He can use sorcery, but it normally can't interact with the material world, even if Zül uses his Manifest charm.