The third in the "Spark" line of spells, this spell calls down charged orbs of lightning, which explode into small bursts of electricity upon strikeing their targets. A prepared caster who has already learned the "Spark" and "Arc Lightning" spells, gains a +4 bonus (or +20%) to his chance to learn the spell. A spontanous caster who already knows the "Spark" and "Arc Lightning" spells has a 50% chance to automatically gain this spell when they acquire 7th-level spells. When gained in this way, the spell does not count towards the caster's limit of spells known.

Upon casting, the caster calls down one or more orbs of ball lightning, which explode in a 5' radius burst upon striking their target or the designated spot. The caster can call 1 orb for every 3 caster levels. Orbs can be spaced no less than 5' apart, and no more than 30' apart. Each orb explodes for 3d6 electrical damage, plus 1 per caster level, to all creatures and items in its burst radius. Any creature damaged by more than one orb takes only half damage from the additional orbs.

If a solid barrier (door, wall) is struck directly by an orb (not just its burst), the barrier can either be dealt damage as if it were a creature (d20 systems), or its chance of shattering can be determined by the barrier's thickness. The chance of shattering is 35%, plus 5% for every level of the caster, and minus 5% for every 1" of wood or 1/2" of stone. If an orb strikes a metal barrier, the energy of the orb may either become grounded or pass through unobstructed, at the discretion of the DM.

The material component of this spell is a piece of rose quartz at least 1" in diameter, with no visible cracks or chips.