I was thinking of this for a long time, and I finally got around to doing it. I don't like the term Alicorn, rather Winged Unicorn, but whatever.

Twilight wants to be promoted to the fighting class, right?

Twilight can be promoted to ALCN. OK?

Yes

Now, let me conduct the rite. The light blesses... UNCN Twilight... with a class of ALCN!