This is Simply a Theif. He Hurts you And is Weak.
Note: Minify the command to avoid issues :)
Iron Soldier
Splash Potion of Mining Fatigue
SkyShop
Non-Purified Water
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)