VERY WEAK!
Note: Minify the command to avoid issues :)
HOW TO USE TITLE COMMAND
Armor Stand killing someone!
Better EnderDragon (4 commands)
Northroniss,Nightmare of the skeletons (REALY POWERFUL!)
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)