Sorcerer's Bloodstone
Artifact • Magical Material: Any. Commitment: 1
There is a saying as old as sorcery itself: "Ritual is the sorcerer's lifeblood." Building upon this principle, one of these artifacts is often among the first that a sorcerous initiate crafts. It appears as a small piece of jewelry such as a ring or pendant, of any of the Five Magical Materials.
In it is set a deep red crystal; this is the literal blood of a sorcerer, crystallized, which is used in the crafting of the artifact. So long as the artifact is worn by a sorcerer, she suffers no fatigue, hunger or thirst while engaged in a sorcerous ritual, no matter what the length. After finishing the ritual, the sorcerer feels rested and rejuvenated, as if he had slept a full night and ate full meal. This does not affect the restoration of Essence motes.
Source: LiOfOrchid on the Unofficial Exalted Wiki.