Unicorns are equine animals with a horn on their forehead. This horn gives them a + 15 dressage bonus.
They are bred in a distinctive way:
- both parents must be unicorns of the same breed
- 1 covering session must be available
then you'll have a
1 in 5 chance of getting a unicorn foal.
After the same unicorn mare foals 5 times without giving birth to a unicorn foal, the 6ᵗʰ is guaranteed to be a unicorn foal.
After covering a unicorn mare, you must wait 10 hours in real-time before you can cover her again or before you can cover a potential unicorn filly.
Blue Jade 
will be able to train at 2 years.