A Wolf.
Note: Minify the command to avoid issues :)
Mr. Pusher LVL LVL LVL LVL LVL LVL LVL LVL
vil vilager
vil vil
vil vilager 2
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)