HA! HA! HA! HA! HA!
Note: Minify the command to avoid issues :)
King Pig
The Sword, Unbreakable
Sword Of The Summer
SUPER FUNNY MOB!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)