I used MrGarretto's command combiner, so this is not entirely mine.
Note: Minify the command to avoid issues :)
Star Wars in Only One Command!
Kid Flash's Mask in Minecraft!
LOL LOL LOL
EXTREME boss battle!
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)