12 XP
Cost: 1 Vitae (supplied by the subject), 1 Willpower point (supplied by the character imposing the Oath)
Dice Pool: Presence + Intimidation + Dominate versus Composure + Blood Potency
Action: Contested; resistance is reflexive.
The target of the imposed Blood Oath must be in the presence of the user of the Devotion, and must be told what he is swearing in a language he can understand. Eye contact is not necessary, but the Devotion fails if the target manages to flee out of earshot before the full Oath can be recited to him.
The user of the Devotion must write the text of the Oath in his own blood, and normally does so while reciting it. However, the text can also be written shortly (no more than an hour) in advance — and since the Devotion does not take effect until the text is complete — this is normal if restraining the target is likely to be difficult.
The content of the Oath must be something that the target can reasonably do; impossible Oaths simply fail to take hold over the swearer. In addition, particularly onerous or dangerous Oaths give the target a bonus of up to +5 to his resistance roll (at the Storyteller’s discretion).
If the activation roll succeeds, the target is affected as if under an Oath of Blood Knives. The Kindred using the Devotion does not, however, immediately know whether he succeeded. If he has failed, the blood of the text dries over the course of an hour or so — thus he soon finds out.
The effect of the Devotion ends when the subject breaks the Oath, thereby taking damage from it, or when the Notary or the lord releases the subject from its effects by blotting out the written oath with one Vitae of his own.