Eilistraee and her church detest slavery and actively fight it whenever possible. Followers of the Dark Maiden are therefore forbidden from taking slaves, and prisoners of war (mostly Lolth-worshipping drow or untrusted individuals who have acquired too much knowledge and that are held for some time to make sure that such knowledge isn't used against the followers of Eilistraee) are usually made work for food and shelter, but they aren't owned and can't be commanded by anyone (only supervisors assigned by the decision-makers among the Dark Dancer's worshippers can give them orders, in selected cases).