Understand Curse

This spell can be cast upon any creature or object that is suffering from any harmful magical affect or the unwelcome attentions of a supernatural power. The spell reveals to the shaman the manner in which the creature or object is cursed, the reason for the curse, and who is responsible for this.

Thus, the shaman can discover the name of the person or creature who cursed the creature or object and what manner of being it is (a spirit, a mortal wizard, a demigod, and so on); whether the curse or spell is a punishment, revenge, or unprovoked assault; and the manner of the curse or spell (whether it's a curse or cause blindness spell, a spirit's attempts to drive a creature mad, and so on).

Note that the spell does not reveal the nature of a spirit (though a local shaman may recognize the name, particularly if it is an ancestor or other spirit venerated by the people), nor the race of any mortal agent.