Publication:Dread Codex/New Spells/Burrowing Bony Digits

By mean of this fiendish spell, you cause up to five skeletal fingers to streak forth and imbed themselves in the flesh of the targets. Each digit inflicts 1d6 points of damage upon striking its target. They do not stop there, though.

Any creature that fails its Reflex save is unable to extract the bony digit before it can lodge itself into the wound. A bony digit continues to penetrate the creature’s body for one round for every 3 caster levels, dealing 1d6 additional damage per round. Once the bony digit is lodged in the wound, it cannot be extracted. A creature can only be targeted by one finger at a time.

Material Component: Five humanoid fingers stripped of flesh and muscle. The individual finger bones must then be tied together with black thread.