| Malfus |
Specifically, can a witch use Possess Undead on one of her Animate Dead minions? Possess Undead and the relevant portion of Magic Jar below.
A gravewalker may take direct control of one of her undead minions within her aura of desecration, as if using magic jar; the witch’s poppet acts as the soul receptacle for this ability. The minion gets no saving throw against this ability.
Magic Jar
While in the magic jar, you can sense and attack any life force within 10 feet per caster level (and on the same plane of existence). You do need line of effect from the jar to the creatures. You cannot determine the exact creature types or positions of these creatures. In a group of life forces, you can sense a difference of 4 or more HD between one creature and another and can determine whether a life force is powered by positive or negative energy. (Undead creatures are powered by negative energy. Only sentient undead creatures have, or are, souls.)