Call Lightning

Immediately upon completion of the spell, and at most once per round thereafter, the caster may call down a 5-foot wide, 30-foot long vertical bolt of lightning that deals 3d6 points of electrical damage. The bolt of lightning flashes down in a vertical stroke at whichever target point the caster chooses within the spell’s range (measured from the caster's position at the time of casting). Any creature in the target area or in the path of the bolt is affected; a successful save vs. Spells reduces damage taken by half. The caster needs not call a bolt of lightning immediately; other actions, even spellcasting, can be performed. However, each round after the first, the caster may choose to call a bolt instead of taking some other normal action. The caster may call a total number of bolts equal to one-third of their caster level, rounded down. If the caster is outdoors and in a stormy area – a rain shower, clouds and wind, hot and cloudy conditions, or even a tornado (including a whirlwind formed by a djinni or an air elemental) – each bolt deals 3d8 points of damage instead of 3d6. This spell functions only where the open sky is accessible, generally meaning outdoors; bolts may be summoned through windows or skylights at the GM's discretion.