Call Lightning must be cast outside, otherwise, it will not work and the spell is wasted. The caster is able to call down one bolt of lightning per turn round. The spell has a duration of 1 turn round every 4 levels of the caster. Each bolt causes 2d8 points of electrical damage, plus an additional 1d8 points per level of the caster. Thus, an 8th-level caster will call down two bolts, each dealing 10d8 (2d8 + 8d8) points of damage. The bolt of lightning flashes down in a vertical stroke at any of the priest's enemies. The first enemy struck by the lightning will be the enemy targeted. After that, any enemy (but no allies) may be struck by the ensuing lightning storm.