Aec'Letec a powerful tanar'ri and the final boss following the completion of Durlag's Tower. It has a unique ability that will cause the target to be turned into hostile ghasts, victims are dismembered, die permanently and cannot be raised. As a denizen of the lower planes, Aec'Letec has a high Magic Resistance, making it difficult to harm it with spells. Web or Blindness may still be used to hamper it but whether or not they take effect is a matter of luck. Aec'Letec also cannot be harmed with normal weapons.