Call lightning

Call lightning was an evocation that directed lightning bolts to strike targets during a storm.

Effect
To cast call lightning, the caster was required to be in a stormy area such as a rain shower, clouds and wind, hot and cloudy conditions, or even a tornado (including a whirlwind formed by a powerful djinn or air elemental). The druid was then able to evoke bolts of lightning as long as he remained in the stormy area. (The spell ended if the druid left the stormy area.) The caster could call down one bolt every 10 minutes. The druid did not need to call a bolt of lightning immediately - other actions, even spellcasting, could be performed. However, the druid had to use a standard action (concentrating on the spell) to call each bolt. A bolt causes a significant amount of injury to a target which increased with the druid's power.

The bolt of lightning flashed down in a vertical stroke at whatever target point the caster chose, within range. The bolt took the shortest possible unobstructed path between a nearby cloud and the target. Any creature within a 10-foot radius of the path or the point where the lightning strikes was affected.

This spell could only be used outdoors. It did not function indoors, underground, or underwater.