Cairn

This spell transports rocks from random sources to rain down out of the sky onto a single surface location within spell range, chosen by the caster, who must be able to see it. The rocks appear 20 feet above the chosen spot and fall straight down. (Some may bounce off rocks below and roll away; however, the spell tends to create a rising column of rubble.) The individual rocks are generally about as large as the caster's head.

Usually used to mark a grave, a cairn spell can be employed to create a trail marker, as a means to reach a high window, or to bury food or other items that must be hidden or kept secure from pilferage. It can also, of course, be used as a weapon, crushing a creature under the arriving stones for 4d6 points of damage. The rocks fall with little force; a creature struck is allowed saving throw vs. spell for half damage.

The material component for a cairn spell is a handful of pebbles. These can be of any type or size, so long as at least eight pebbles fit into the caster's cupped palm.