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Detect Invisibility - spell

       Usage: cast 'detect invisibility' : cast 19
      Effect: See below
        Cost: 20
    Duration: 12 + caster-level hours
Casting Time: 12
      Target: Caster only

For the duration of this spell the caster will be able to see monsters and
characters that are magically invisible.  This will not allow them to see
hidden MOBs and characters.

The classes that get the spell detect invisibility are:

magic-user : Level   3 (excellent)
cleric     : Level   9 (excellent)
priest     : Level   4 (excellent)
monk       : Level  12 (excellent)
bard       : Level  29 (excellent)
darknight  : Level  75 (excellent)
wizard     : Level   3 (excellent)
druid      : Level  10 (excellent)
ranger     : Level  40 (excellent)
illusionist: Level   3 (excellent)
paladin    : Level  40 (excellent)
necromancer: Level  24 (excellent)