Unicorns, Pegasi and Unipegs have been added to AVH.

They are magic horses and as such they will be bought from the magic shop.
Unipegs can not be purchased from the magic shop directly, they will be obtained through the breeding of an Unicorn and a Pegasus (or 2 unipegs).
The magic horses only allow 2 breedings.
At this moment they do not have any special abilities, but that might be added in the near future.
Also, when you buy a magic horse, it is completely random, meaning the gender, color and traits are picked randomly.
Also, the initial magic horses will only have regular colors, so the rare colors will have to be generated through breeding.