Necromancers are specialized wizards, and wizards focus on the manipulation of mana. Commonly wizards can and do manipulate animus indirectly as they use mana to manipulate animus. They attract animus with mana and then use mana to shape a body to house the animus so as to create mana bodies. They may also use mana to bind mana to objects that may act as a phylactery for their immortal soul. Animus free of a body or free of mana will simply move on to the next world or dissipitate depending upon the stability of the animus.