This is a priest's version of the 5th level wizard spell of the same name. The caster can affect one undead creature (which can be controlled without hampering this spell). The creature becomes a spell focus for the caster – who can cast any currently memorized spell through the creature. While the spell is emitted from the undead creature, all casting activity (including component use) is performed by the priest. Distance does not matter, provided the priest and undead remain on the same plane. However, unless other spells are used to see the undead creature's surroundings, or it is in a known location, such spells are hurled blindly.
The priest can cast one spell per round through the undead creature, up to a maximum of one spell per level of experience. This ability lasts until the creature is destroyed, the maximum number of spells is used, or the spell runs out (it can last up to day per level of the caster).
With this spell, a hidden priest can avoid direct combat. It can be cast on an undead affected by revenance and/or undead battlemight, and the spells will function simultaneously.
The material component is a drop of the caster's own blood.
Notes: Rare spell from the Forgotten Realms setting.