How Does Once Be 6

For centuries earth ponies always tend to the land. But somewhere out in the Bandlands there lives a group of special earth ponies-Orb users. They create a balls from earth energy, for healing, battle and defense.
Not all things are well for Aurora Mora, who lives in a place who hunts Ord users down and kills them. But that all changes when she finds the Orb of the Night-Mares.That killed her mother's mom.