This command adds the Dark Demon Lord, a.k.a the dark opal demon!!
Note: Minify the command to avoid issues :)
Notch has added a new mob to minecraft:Penguin
A VILLAGER
Griefing Items in 1 command 1.8.7 (Read the comments!)
Special: Fight myself!
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)