Shocking Sphere

       Usage: cast 'shocking sphere' <target> : cast 63 <target>
      Damage: (8 + level/3)d8
        Save: Save vs. Energy
        Cost: 2 + level*0.75
    Duration: Instant
Casting Time: 17
      Target: One MOB or character 

The classes that get the spell shocking sphere are:

cleric     : Level  38 (very good)
priest     : Level  28 (excellent)
bard       : Level  58 (fair)
druid      : Level  13 (excellent)
necromancer: Level  16 (excellent)