Custom Blood Magic: Ritual
Some chronicles allow for their players to develop customized powers for their characters. The following is a compilation of player created custom content in OWBN. At this time, custom content that is created and/or used by vampire PC's is required to be listed.
By spending three nights in the writing of a contract with your own blood, you create an unbreakable bond between yourself and any one signatory. You use two Blood Traits to make the contract - one to write it and one for both parties to sign it. The Black Tontine enforces compliance of both parties to the literal terms listed. Should either party break the terms of the contract, the individual's soul is immediately removed from their body (as if under the effect of Soul Stealing) and is teleported directly to the other party where it must remain for a minimum of 24 hours. This effect cannot be resisted or prevented in any way. The only way to finish a Black Tontine is to fulfill the terms or physically burn it.