My version of a zombie boss, goes well with the zombie minion.
Note: Minify the command to avoid issues :)
Crafter Villager
~{Zombie Boss}~
Mushroom Drink [FOR SUPER MARIO BROS]
Ender Dragon Minion
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)