just pass in a command block and put a button on top then press
Note: Minify the command to avoid issues :)
DIMOND BOSS WITH COOL DROPS
BECOME MINECRAFT USERS
THE AWSOME SPEEDY STICK!!!
herobrine***************
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)