Storm of Needles

Conjuration (Creation) Level: Wu Jen 4 (metal), Components: V, S, M, Casting Time: 1 standard action Range: 30 ft. Area: Cone-shaped burst Duration: Instantaneous Saving Throw: Reflex half Spell Resistance: No   You flick a needle out in front of you. Instantly, the area is filled with a burst of thousands of tiny needles, which vanish almost as swiftly as they appear. Creatures in the cone take 1d4 points of damage per caster level (maximum 15d4). Material Component: A 1-inch-long metal needle.
 

You flick a needle out in front of you and instantly fill the area with a burst of thousands of tiny needles, which vanish almost as swiftly as they appear. Each creature in a 30-foot Cone must make Dexterity Saving Throw. A creature takes 12d4 Piercing damage on a failure, or half as much on a success. The needles impart any special properties of the metal that forms them, which is the same as the needle used for the material component; for instance, cold iron needles deal additional damage to creatures with weakness to cold iron. All the needles are made of the same metal, and the metal returns to you after the spell is cast.   At Higher Levels. When you cast this spell using a higher level spell slot, increase the damage by 2d4 for each slot level above its base level.