Sure. One example is the One - Power from 'The Wheel of Time' series. It can be used for various magical feats like healing, creating illusions, and controlling the elements. Another is the Force in 'Star Wars'. Jedi and Sith use it for telekinesis, mind control, and precognition. These abilities are so powerful as they shape the storylines and the destinies of the characters.
The All - Spark from 'Transformers' is a powerful ability in its own universe. It can bring mechanical life to Transformers. In 'Lord of the Rings', the power of the One Ring is also very significant. It gives the bearer the ability to control the other Rings of Power and has the potential to dominate Middle - earth. These are just a few examples of the powerful abilities in different fictional works.