Format:
cast 'blindness'                cost:  22 mana                         
cast 'cure blindness'           cost:  25 mana                         

The blindness spell is a low- to mid- level mage spell.  It is considered an
offensive spell, and has only a short duration.  The target is allowed a saving
throw against the spell, and very high level characters are extremely difficult
to blind.  This spell may be removed by dispel magic or cure blindness.

The cure blindness spell is a cleric spell of roughly the same level as the
blind spell.  It is not guaranteed to completely remove a blindness spell upon
success, however it does have a much higher probability of success than dispel
magic.  For each successful cast, the duration of the targeted blind spell is
reduced until the blindness is removed.