alicorns

Alicorns contain the natural connection to Equus of earthponies, the ability to fly and affect weather as pegasi do, and the power to manipulate Equus' magic sphere as easily as the unicorns. They can either be created through an intense magical process fulfilled by another alicorn [or powerful being], or by being born naturally as one [when one parent is an alicorn already]. The alicorn was created as the hopeful solution to the war that broke out with the introduction of unicorns to Equus. The Guide known as Life worked alongside Peace to form an entity that would combine the strengths of all of the current pony races. At first, their attempts were received negatively, and those prototypes eventually became the Angels that watched over the ethereal realm. But eventually, the alicorns Solaine Celestia and Selena Luna were born, their arrival bringing an era of peace. The alicornification process is a long-revered process that only the alicorns themselves oversee, like Twilight's mentorship under Celestia.