1 deviant said Once the soul is in the mummy 1. Capabilities of the soul is subjected to the mummy (for example, if the soul could not perform genjutsu, the mummy couldn't either) 2. The mummy can be commanded, since it has "lifeless" qualities, but morals of the soul
No deviants said A very small clan that mummifies those who die from their clan, they're reclusive so they are not associated with any village.
No deviants said Clan has kinjutsu technique which takes a soul of another and trap in an effigy (several strict conditions must be followed for the technique, of course) which they then transfer the soul into their mummified clan member to be used for protection
No deviants said still remains (ex. if the person refused to kill children, the command would be ignored) 3. Once the chakra of the soul is completely depleted, the soul is released, and the mummy cannot used until another soul is replaced
No deviants said You can come up with restrictions on how the soul can be taken X'D
No deviants said Along with their kinjutsu techniques (Stealing souls, then transfering them into mummies for puppets, 2 in total), they specialize in genjutsu and Fūinjutsu, but are poor in ninjutsu and taijutsu
No deviants said They can release fuinjutsu placed on others or other curses placed on people from other kinjutsus, but getting their services are rare due to the clan being so reclusive