I am not the one who developed this horse, so I am not the one to ask.
But in the little brochure we have, it says, "The Blazer Horse was developed to be a very versatile horse. They are handy, hearty, agile, and tough. This gentle and willing athlete can perform any equine task set before it and is bred to move with grace, comfort, maneuverability and elegance."
So they can do anything from dressage to cattle roping, jumping to barrel racing, or racing to driving. They were bred to do most anything.
If you want any more information, here is a link.
Blazer horse - Wikipedia, the free encyclopedia
For those of you saying that it is just a way to scam people out of their money, Blazers are actually a fairly inexpensive horse. I got both my horses for $800 each for two of our horses. When a friend of ours bought a Blazer directly from the breeder, she only paid $1,200. Our horses are wonderful and is everything we could ever could ask for.