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Regeneration

       Usage: cast 'regeneration' <target> : cast 61 <target>
      Effect: Explained below.
        Cost: 60
    Duration: 6 hours
Casting Time: 12
      Target: One character

When cast, this spell will speed up a player's metabolism, causing
an increased health sensation. The effect will cause you to regenerate
hit points and movement much faster than normal.

The classes that get the spell regeneration are:

cleric     : Level  57 (very good)
priest     : Level  47 (excellent)
monk       : Level  65 (excellent)
bard       : Level  67 (fair)
wizard     : Level  60 (awful)
druid      : Level  37 (excellent)
paladin    : Level  85 (bad)