Note: Minify the command to avoid issues :)
Ender King Boss Battle (the other Ender King didn't come out right but this one did)
Death Banner
Mc Donalds Cook
How to use /summon {MOB} riding {MOB}
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)