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