The OP Boss for 1.9+
Note: Minify the command to avoid issues :)
2x Healt By FlashBatMan
How to A Flash?
Coca-Cola by FlashBatMan
The Skeleton Boss [1.9]
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)