An OP wither riding an ender dragon
Note: Minify the command to avoid issues :)
Weird OP? Chest
Super Unlucky Potion that will kill you!
EnderDragon jockey
Mystery Good Bad Potion
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)