I used MrGarretto's command combiner, so this is not entirely mine.
Achtung: Minifiziere den Command um Probleme zu vermeiden :)
Smoke/Gas Bombs!
Flash item #3!
Stormtrooper!
Custom death sounds!
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)