This command summons a giant end/nether flying stack of mobs:
Note: Minify the command to avoid issues :)
GLOWING ARMOR STAND TUTORIAL
UNSPEAKABLE TROLL COMMAND
SIT AND WATCH A HOUSE (START TO) BE BUILT =)
I DON'T KNOW WHAT EXACTLY :|
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)