This Is A Boss That Is Ultra Hard No Other Info.
Note: Minify the command to avoid issues :)
The Stages Of Darkness.
Dr.Red's Lab
DJ Skellex And The Arena! Revamped
RiddageddoN!!!!
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)