Scintillating Sphere

Evocation [Electricity]
Level: Sor/Wiz 3
Components: V, S, M
Casting Time: 1 standard action
Range: Long (400 ft. + 40 ft./level)
Area: 20-ft.-radius burst
Duration: Instantaneous
Saving Throw: Reflex half
Spell Resistance: Yes

A Scintillating Sphere is a massive electrical discharge that deals 1d6 points of electricity damage per caster level (maximum 10d6) to every creature and unattended object within the area.

Material Component
A glass marble