Call Lemure Horde(Book of Vile Darkness, p. 86)
Conjuration (Calling) [Evil]
Level: Mortal Hunter 4, Sorcerer 5, Wizard 5,
Components: V, S, Soul
Casting Time: 1 minute
Range: Close (25 ft. + 5 ft./2 levels)
Effect: 3d4 lemures
Duration: One year
Saving Throw: None
Spell Resistance: No
The caster calls 3d4 lemures from the Nine Hells to where he is, offering them the soul that he has prepared. In exchange, they will serve the caster for one year as guards, slaves, or whatever else he needs them for. They are nonintelligent, so the caster cannot give them more complicated tasks than can be described in about five words.
No matter how many times the caster casts this spell, he can control no more than 2 HD worth of fiends per caster level. If he exceeds this number, all the newly called creatures fall under the caster's control, and any excess from previous castings become uncontrolled. The caster chooses which creatures to release.