Laser Beams!
Note: Minify the command to avoid issues :)
Sword you will ever need to have in vanilla minecraft
Notch has added a new mob to minecraft:Dragon
WTF?!?!?!?!
Skeleton Boss (1.9.1)
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)