This ritual, actually performed by some Ancient Mayans in the past (including Inyo) to achieve immortality and enhanced physical attributes (including enhanced strength, stamina, speed, and durability).
In the ancient Mayan empire, about a thousand years ago, Inyo, an Ancient Mayan athlete, made a deal with the Mayan god Cacao, through the high priest for immortality (as well as enhanced physical attributes such as strength, durability, speed and stamina), in exchange for two sacrifices a year, one in the time of planting, one in the time of harvesting.
Although he capable to lived for centuries and travelling to culture to culture and being any form of sportsman he could find, eventually he met his true love, Betsy. When she grew older and he knew she will died at some point and he cannot lived without her, he later committed suicide by driving his car off a bridge, thus killing him and ending his long life.
However this was not the end; earlier on, thinking he would never die, he signed up to an organ donor's plan, thus with his death eight pieces of him were donated to other people, and the spell of Cacao passed on with the organs, granting each of them the same deal that Inyo had. It also dramatically changed them, and they all began killing to keep up with the sacrifices. They also gained a psychic link to each other.
Anyone who wanted to achieve immortality this way must first make a deal with the Cacao. The deal must be made through a high priest. How to make the deal was not shown, however, after the deal is made, the people will achieve their immortality including all of the enhanced physical attributes. To renew it, two sacrifices must be made a year, one in the time of planting, one in the time of harvesting.
The sacrifice must be performed by ripping a heart from any individual who the user desired. After the heart is obtained, an altar must be built with as many candles needed and arranged. Blood is later poured into a bowl where the heart is placed and whisker-like mark must be made on their face from the blood in the bowl. Along with the process, an Ancient Mayan incantation must be recited several times:
- K'uhul ajaw, Cacao, shi-jiiy (means: The divine god, Cacao, is born).
After that, the user must bite and eat the heart. After the sacrifice is performed, a ghostly wave will appeared around the user and possess them. When their retinas turn bright red, the ritual is complete and the contract along with their immortality and their physical abilities renewed.
The ritual will give the participant immortality and enhanced physical abilities. However, because without Cacao high priest assistance to make the deal, the deal will turned into something bad.
If the user died and any of their organ transplanted to another, the deal will infected any recipients and compelled them to killing another people so the deal never ended.
If the recipient is particularly decent and goodwilled, the deal may broke their sanity and turned them into madness, since they won't be willing to harm others.
The only known way to break the deal is break the heart of the user. A fatal stab plunged into their heart will instantly killed them and break the deal forever for good. Any people with an organ transplanted from the user also will die.