This spell causes the bones of the affected creature to throb and pulsate inside his body. The spell can be cast upon any single living creature or person within the caster's range, providing the creature has a physical form and has bones inside its body; for instance, throbbing bones will not affect insects, ghosts, or worms.
For the duration of the spell, the affected creature's AC is worsened by 2, its movement rate is halved, and all its attacks are made with a -2 penalty. Additionally, it suffers 1-4 hit points of damage per round; this damage is halved if the creature makes a successful saving throw. However, a successful saving throw has no affect on the movement, attack, and AC penalties.
The material components for this spell are both pieces of a small bone that has been snapped in half.
Notes: Uncommon spell. Optionally available to Savage mages.
Optional: The issue of continuous damage and its effects on spellcasting can be resolved as follows: The damage has an initiative modifier of 0. The spellcaster must win (not tie) an individual initiative roll against die damage to successfully cast a spell, including the spell's casting time as a modifier. Failure means the attempt is unsuccessful and the attempted spell is lost.