Ride this ghast! It's rideable! YES!!! IT'S TRUE!!!
Note: Minify the command to avoid issues :)
Combat Pack In One Command!
Evil Zombie King
HOW DARE YOU?!?!?!?!?!?!
Baby Zombie Sucker
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)