Curse of Clytaemnestra
This ritual allows the caster to destroy one man by rapidly ageing his physical form until he decays to nothing.
System: The caster must have a personal possession of the target as well as some of his blood. She mixes as much of her blood as she wishes into a cauldron with the tokens of the intended victim, and slowly adds a number of rare incenses and ingredients.
The ritual takes a full day to cast and, once finished, the target resists with Stamina and Fortitude against a difficulty equal to the of Blood Points the caster expended during the ritual. The target is aged to a final age of (100- 10X the number of successes on the Stamina + Fortitude roll - but it cannot actually decrease the target's age). The shock to the victim's system is such that it kills the victim unless he achieves at least three successes on the roll. The victim is considered crippled unless he achieves at least 5 successes. The spell only affects mortal men (or ghouls), and causes degradation if the caster is a follower of Humanity or a similar road.
This ritual was the creation of a Tremere in the Milwaukee chantry named Carna, who uses it to destroy lovers who "betray" her.