Yeah!!!
Note: Minify the command to avoid issues :)
Minecart CommandBlock
Dinnerbone the Giant Wither
Friendly Troll Potion
Endy the Ender Dragon! (Boss Battle) {Read Description First before using command}
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)