Entity
If you allocate too large a part of the body to the control of malleable essence and relax control for a long time, it gains autonomy, obeying not direct commands, but the deep desires of the host. This can be extremely useful, as in the case of a musician whose Entity masterfully controls arm prosthetics while he himself enjoys the process.
However, such relaxation of control is not always appropriate, and in many settlements, such manifestations of essence are treated with great caution










