Battering Blast

You hurl a fist-sized ball of force resembling a sphere of spikes to ram a designated creature. You must succeed on a ranged touch attack to strike your target. On a successful hit, you deal 1d6 points of force damage per two caster levels (maximum 5d6). For every 5 caster levels you possess beyond 5th, you gain an additional ball of force. A creature struck by any of these is subject to a bull rush attempt. The force has a Strength modifier equal to your Intelligence, Wisdom, or Charisma modifier (whichever is highest). The CMB for the force's bull rush uses your caster level as its base attack bonus, adding the force's Strength modifier and a +10 bonus for each additional blast that hits. If the bull rush succeeds, the force pushes the creature away from you in a straight line, and the creature must make a Reflex save or fall prone.