This Medium dog is specially trained to carry a Small humanoid rider and is combat trained. Breeders select dogs with strong backs, endurance, and loyal dispositions and train them for riding and combat before sale. Reputable breeders can be found in major cities. More information on riding dogs can be found in the Bestiary.
It is brave in combat like a war-trained horse. Due to its smaller stature, you take no damage when you fall from a riding dog.