By using harm touch, you can bring the dead back to unlife.
Prerequisites: Cha 19, Greater Defile, harm touch class feature, defile class feature.
BENEFIT
You can expend 10 uses of harm touch to afflict dead creatures you touch back to unlife as an animate dead spell with a caster level equal to your dark knight level. You must choose to accept 1 temporary negative level; this level automatically goes away after 24 hours, never becomes a permanent negative level, and cannot be overcome in any way except by waiting for the duration to expire.