There are three types of ponies in Equestria. Unicorns have horns, and can do magic; pegasi have wings, and control the weather; earth ponies have neither, and are connected to the land and the living. Princesses are those ponies who have have earned the right to become alicorns, and as such, we have all three gifts.

None of them is working properly here, however. [She frowns, first up at her horn, then back at the cloud she had fallen through.]