I don't have the 1.9 snapshot so I can't test the loots table.
Note: Minify the command to avoid issues :)
Invisible Block
Electric Stuff
Royal Guardian Sword.
Pink Sheep (From ExplodingTNT's YouTube channel)
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)