More alicorn headcanon

In the world building in Cross Words, I described how a small number of alicorns were born throughout history, with Cadance being the seventeenth. All alicorns are sustained by the love and respect of their little ponies, and so any of them could have chosen immortality, in a similar form to that enjoyed by Celestia and Luna. But all chose eventually to live a mortal life.

So when I saw a contest involving writing a story idea normally associated with bad FIMfics, and one of those choices was an OC alicorn, I remembered I named a bunch of them in Cross Words. So I decided to submit a story about the first of these alicorns choosing between mortality and immortality. The setting is the distant past, about two hundred years after unification, and centuries before Luna's descent into madness. Equestria is a more dangerous place, and the destiny of this alicorn was to lead his ponies in battle.

So what happens when he fulfills his destiny? Read Red Tornado!