Lightning Bolt
This spell damages wooden constructions just as a fireball does. It inflicts
1d2 points of structural damage against stone or metal targets for every three
dice of damage it would normally inflict; round fractions down. For example, a lightning bolt from a 7th-level caster would inflict 3d2 points of damage against a mantlet
(a wooden target) and 2d2 points of damage against a portcullis (a metal
target). A lightning bolt can set wooden constructions afire just as a fireball can.
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