Essence Vessel

World of Darkness - Book of Spirits
Your character carries residual Essence from an unknown source, and spirits can see it. That Essence only leaves the character’s body and becomes consumable by spirits with the character’s death. The amount of Essence released in that event and its nature depend on the needs of the story. The character may contain neutral Essence, delicious for all spirits, or she may be restraining the soul of a powerful spirit, which only her death will release. Either way, the character gains experience when the unwelcome attention she regularly attracts from spirits causes real trouble.
Type
Supernatural