6th level Evocation
Classes: Magus, Sorcerer, Witch, Wizard
Domains: Lightning
Components: V, S, F (A bit of fur; a piece of amber, glass, or a crystal rod; plus one silver pin for each caster level.)
Casting Time: Standard
Range: 500 ft
Target: One primary target, plus 12 secondary targets (within 30 ft. of the primary target)
Duration: Instantaneous
Saving Throw: DEX half
Spell Resistance: Yes
Description: This spell creates an electrical discharge that begins as a single stroke commencing from your fingertips. Unlike lightning bolt, chain lightning strikes one object or creature initially, then arcs to other targets. The bolt deals 10d6 points of electricity damage to the primary target. After it strikes, lightning can arc to a 12 secondary targets. The secondary bolts each strike one target and deal half as much damage. Each target can attempt a DEX saving throw for half damage. You choose secondary targets as you like, but they must all be within 30 feet of the primary target, and no target can be struck more than once. You can choose to affect fewer secondary targets than the maximum.
Leveling: For each level above 6th you do an extra 2d6 electricity damage and may hit 2 additional secondary targets.