He lives in the holes of trees, from where he spies upon young women who wander the roads and mountains. When one gets close to him, he stares at her, leaving the woman paralyzed until she falls into a long lethargy. When she wakes she discovers that she was stained by the ill-fated dwarf.
He is also represented as a warlock that is able to produce sickness to the kids and even the older ones. It is said that if you can get his staff and hit the ground with it, he can feel the hits. And if you carry the stick to your home and hang in over a fire, it will start to distillate oil, with which you can heal all the people who have fallen victim to the Trauco's curses. It is also said that if someone can look at the dwarf before he looks at him, the Trauco will die.