Although the great, black, skeletal horses may not be as preferable as, say, a little pink-nosed kitten, they’d definitely be pretty useful companions. They may not be the most picturesque of pets, but unless you’ve witnessed death, a lot of people will most likely not know you had one anyway. But let’s not forget that Thestreals are also brilliant navigators, and can fly. Your taxi days are over. And you don’t even need Siri. You just say where you want to go and they take you there.