Raise Vampire

       Usage: cast 'raise vampire' <target> : cast 128 <target>
        Cost: 100
    Duration: Instant
Casting Time: 100
      Target: None

One of the most powerful spells of necromancy, this spell creates a
vampiric servant.  The vampire follows the caster as a charmed monster,
serving until it is destroyed.  All experience gained by the undead 
servant is transfered to the caster.  There is no time limit to the 
creature's existance, but the caster is limited to controlling a number
of undead equal to (level+1)/10 (minimum 1). 

The classes that get the spell raise vampire are:

necromancer: Level  80 (excellent)