The Arabian is a classic outcross for Warmblood breeders, generally used to improve certain areas dressage. They have good rhythm and good collection, but are a bit weaker in relaxation and straightness. Don't count them out for jumping though, as they can improve bascule and balance. You might want to pair them with a horse that has high confidence and power, though.

Registering an Arabian

In order to be registered as a Arabian, they must have 100% Arabian blood. After they have been riding tested for the Arabian breed, they are able to get approved with up to two Warmblood registries however, which can make your Arabians a great outcross for Warmbloods!