Vicissitude

Vicissitude is the unholy Discipline of the Tzimisce Bloodline. In short Vicissitude allows its practitioners to shape the flesh of other beings. The two most common applications of Vicissitude are the transformation of Tzimisce Havens into bleeding, writhing, houses of horror. The other is the manipulation of appearances. All Tzimisce use Vicissitude to shape their own flesh into whatever alien form they desire.

For Discipline mechanics, go here.

Szlachta
War-ghouls, as they're called, are fleshcrafted soldiers of the Tzimisce. They are typically ghouled mortals (but not always) who have been transformed and twisted into hideous, powerful mutants to serve as soldiers, bodyguards, and test subjects. The manipulation of a Szlachta's form can vary wildly depending on the Tzimisce. Some are simply given hardened ribcages or increased bone density for extra protection. Others are completely twisted monsters with extra limbs, organs, bone weapons, etc.

Vozhd
Vozhd are immense monstrosities crafted by the merging of a dozen or more Szlactha, turning them into living siege weapons. Capable of tearing through virtually anyone and anything with ease, Vozhd are near-insane blood fueled monsters. Prior to the Modern Nights the Vozhd were almost single-handedly responsible for the survival of the Tzimisce Bloodline. However the practice of Vozhd creation has fallen out of use in the Modern Nights, but still see occasional use.

Origin
The origin of Vicissitude is unknown to all but The Elder. Scholars and researchers have been able to piece together information but never a whole picture. The leading theory is that Vicissitude is a disease that originated from the Abyss, and was a curse placed upon the Tzimisce Bloodline by Tzicath. It was intended to spread through the entire Bloodline and allow Tzicath to manifest anywhere it desired using the vampire's bodies as anchors. However, the entity was banished back to the Abyss by the Free Council, the Tremere, and werewolf Theurges before his plan could be fully realized.