By Honorah O'Neill (email@example.com)
System: To enact this Rite, the Abomination needs a Garou to perform it on, a vampire (usually Dominated or otherwise coerced into participating), a klaive, some silver wire, and the tooth from a Silver Fang. Some sort of Gnosis or Willpower draining device such as a d'siah, a Banesword, or pain daggers are also commonly used, but are not absolutely necessary. First off, the Abomination must soak the Silver Fang's tooth in a container of his own blood for three nights. Once prepared, the tooth will keep for up to a year. Once this is done, the Abomination must select his victim. Once he has managed to subdue the hapless Garou, he pries open the jaw of his victim and removes whatever tooth corresponds to the Fangs' tooth (obviously he has to rip out a molar if he has a molar, not a canine). He rolls Wits+Medicine (difficulty 10) to get the Fangs' tooth into the old socket and wired in so that it stays there, permanently. Once this is done, he takes a klaive and carves the glyph for Abomination over the Garou's heart. Into the wound he rubs some of his own blood. Roll Wits+Rituals difficulty 10, only one success needed. If he succeeded in doing all this, he usually takes this opportunity to drain off as much Gnosis and Willpower from the Garou as possible before the final step. In the final step, a vampire performs the Embrace as he would for a human. The Abomination may not perform the Embrace himself. If the Garou participant was unwilling(as the almost always are), he may still make a saving Gnosis roll, assuming he has any Gnosis left. The difficulty is 10 but the Garou merely needs to fail to become an Abomination. If he succeeds, he dies in horrible agony. If he botches, he heals the scar left from the klaive. If he merely fails, the scar is permanent. In either case, any Abomination that sees him with be able to see a faint glowing version of the glyph on the new Abomination's chest even if it is covered or the scar healed. So long as the Fangs' tooth is still bound into his jaw, the Garou is Blood Bound to the Abomination who enacted the Rite. If the tooth is ever removed, the Garou makes a roll per the normal Abomination rules to see if he remains an Abomination or crumbles into dust.
Oh, and as to the little bit about this being created by a Fang, it made sense since the Fangs are supposed to hold the powers over life and death. (also where the name came from)