3. Tosa Inu
Just look at this huge dog! This breed can weigh around 200 lbs hence Tosa Inu is grown as a fighter. In most countries this breed is banned and keeping it is illegal.
4. Chow chow
Owners of this breed claim that chow chows are very demanding. They need lots of attention. Remember that this breed is aggressive and can attack anyone if they feel any sort of danger.