Alduin from The Elder Scrolls
(Will not work in 1.9 and above)
Note: Minify the command to avoid issues :)
Boss Enchanted Book
Vanisher
Gas Tear (Gas Grenade)
Looting Godly Pickaxe
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)