The Shifter

A new mob, called the Shifter, would be interesting. The mob could pretend to be any mob, preferably a cow or sheep, and when you hit it, it would transform. It looks similar to a breeze, but is larger and has wings, and instead of having the swirls of wind it will have feathers and fireballs. It can shoot fire and does different amounts of damage depending on the amount of animals it pretended to be you killed, eg if it was a cow how many cows you killed.