Note: Minify the command to avoid issues :)
Nghias Boss Battle!
SkeletonKing Boss in OneCmd
jumpScare In OnlyOneCommand!
New Difficulty!....[Nightmare!]In OneCommand Vannila Minecraft 1.8.8
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)