"Good day, my name is Angus from Western Australia. I am a 3-year-old Mastiff x Staffy. My owner adopted me from k9 rescue. I love my new home and family. Dad buys me lots of toys to play with. I get to sleep on the lounge at night."
The Amstiff is not a purebred dog. It is a cross between the Mastiff and the American Staffordshire Terrier. The best way to determine the temperament of a mixed breed is to look up all breeds in the cross and know you can get any combination of any of the characteristics found in any of the breeds in the hybrid. Not all of these designer hybrid dogs being bred are 50% purebred to 50% purebred. It is very common for breeders to breed multi-generation crosses.