The ability can be used on buildings, forcing them to collapse or to remain stable, and on different geographical features, affecting events such as landslides and avalanches. It can also be used on people, and will affect their health, their abilities or their temperament. The ability can also be used to affect the stability of different relationships, and also potentially to alter the stability of a timeline, though this aspect is extremely difficult. Barbara in particular found the ability hard to control immediately after manifestation, and during her pregnancy and labour with her son Jamie, but she eventually learned to use the ability on itself to stabilise her own control.