IF YOU CAN'T KILL A GHAST OR A GIANT THIS GUY WILLKILL YOU
Note: Minify the command to avoid issues :)
Samp Mist 1
Never Ending Zombie Spawner
Swamp mist 2
GIANT JOCKEY! (Giant riding Ghast)
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)