An orb of electricity about 2 inches across shoots from your palm at its target dealing 1D8 points of electricity damage. You must succeed on ranged touch attack to hit your target. For every two caster levels beyond 1st, your orb deals an additional 1D8 points of damage: 2D8 at 3rd level, 3D8 at 5th level, 4D8 at 7th level, and the maximum of 5D8 at 9th level or higher.