It has fly hacks. Go ban it.
Note: Minify the command to avoid issues :)
Fight the Grim Reaper in 1 Command!
Deadly Meteors!
The HARDEST Boss Ever?
Assassins everywhere!
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)