Special Abilities
Special Abilities can range from regeneration to breathing acid. A Troll for instance, has the ability to regenerate hit points and even missing body parts (very slowly). A Drakon on the other hand, can breathe out a stream of acid at anything unfortunate enough to be in the way. Most undead creatures do not have to eat, drink, or sleep. These are all considered special abilities that are used in Everlasting Journey.
Here are a few other examples:
Flaming Aura
Drain Hit Points
Teleport
Shape Change
Disintigrate
Resurrect
Heal
Gaze of Stone
Paralyzing Fear
Cause Disease
Putrid Stench
Etc.