Boneblast(Book of Vile Darkness, p. 86)
Level: Blackguard 1, Cleric 2,
Components: V, S, M, Undead
Casting Time: 1 action
Target: One creature that has a skeleton
Saving Throw: Fortitude half or Fortitude negates (see text)
Spell Resistance: Yes
The caster causes some bone within a touched creature to break or crack. The caster cannot specify which bone. Because the damage is general rather than specific, the target takes 1d3 points of Constitution damage. A Fortitude save reduces the Constitution damage by half, or negates it if the full damage would have been 1 point of Constitution damage.
Material Component: The bone of a small child that still lives.