Dr Trayaurus from DanTDM!
Note: Minify the command to avoid issues :)
A Wither Boss Spawner!
Terrance's Carrot on a Stick
Get a Zombie Pigman Skull!
Mining Shop
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)