Everything

The sacraments of the Roman Catholic Church are considered necessary for a mortal’s salvation. So, too, do Orthodox members of the Church of Caine consider the Atra Sacramentum integral to a vampire’s unlife. When the Atra Sacramentum is cast, all vampires involved in the ritus must perform a sacrifice of their own flesh, offering reparation to the Dark Father in penance for the sins of her forefathers, the Antediluvians. Typically, the ritus is performed in front of an altar fire, into which each vampire slices a finger or some other small portion of their flesh while offering a prayer for the blessing of Caine.

System

The vampire receives two points of unsoakable aggravated damage when performing this ritual. Healing this wound ends all effects of the Atra Sacramentum. Until the next sunset, a vampire who has participated in the Atra Sacramentum ritus does not suffer the effects of their Clan’s weakness. A vampire may only receive the benefits of the Atra Sacramentum once per lunar month, and the ritus’s benefits last only for one night.