The Ultimate Mastiff in a rougher and shorter-medium coat Tundra variety. Created to be the ultimate moderate to colder climate Mastiff. A tiny bit of French Bulldog was added to obtain the natural upright ears. The tail can be a natural bob. The breed has a calm, collected temperament with a moderate energy level and love of exploring and adventures ranging from relaxed to slightly intense. They aren't hostile towards other pets or human aggressive. #Ultimate #mastiff #fictional #breed #dog