Ice Storm

This spell causes great magical hailstones to pound down for 1 full round, dealing 5d6 points of damage to every creature in a 20' radius around the target spot; a successful save vs. Spells will reduce damage by half. The ice storm fills a vertical volume of 40', so creatures higher than that distance above the target spot are unaffected. A –20% penalty applies to each Listen roll made within the ice storm's effect, and all land movement within its area is at half speed. At the end of the duration, the hail disappears, leaving no aftereffects (other than the damage dealt). Any creature naturally resistant to cold takes half damage (or one-quarter damage if it makes its save).