Parasitsu

Living weapon that is attached to a warrior's body and transforms the master, or a weapon that can transform its appearance. This weapon can be very powerful because the weapon either transform on its master or transform detached from the master.

Power
The power of the Parasitsu is one of the most diverse of all the weapons. The paritsu has two different ways of transforming; one is either on the weilder's body or off the body. Physiologically, when transforming on the weilder's body, it can change the appearance of the weilder as well. Nor exactly like the Spiritsu, completely changing how the weilder would look. But with paritsu changes on the weilder more like a weapon of armor.