Boneblast

Boneblast
Necromancy [Evil]
Level: Blk 1, Clr 2
Components: V, S, M, Undead (caster must be undead)
Casting Time: 1 action
Range: Touch
Target: One creature that has a skeleton
Duration: Instantaneous
Saving Throw: Fortitude half or negates
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.