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 preparing a gold or bronze amulet and marking it with words of power, carved in the secret language of the Abyss (as referenced in One With the Dark), the character creates a trap of sorts that can hold a spirit of the Abyss prisoner. While held, the spirit offers the benefits of some strange power, though should the item be used, the spirit is freed back into the Abyss, where it may well plot revenge.
System - The character brandishes the amulet so that the spirit is made aware of its presence and makes a Mental Challenge against the Spirit, retesting with Occult. If successful, the spirit is bound into the item, which becomes blackened and the Abyssal spirit is unable to escape until the caster or someone else holding the amulet agrees to use the enchanted amulet for its power. When defending against this ritual, the spirit in question may call upon a number of retests equal to its levels of Obtenebration. The benefits of the item should be relatively small, a retest for a challenge, a message delivered, etc that is never more than some minor effect and always one use before the spirit is freed back into the Abyss.