This is the Coal Soldier from the Ore Army.
Note: Minify the command to avoid issues :)
Potion of Defense (Resistance)
Villager Infantry Soldier
Splash Potion of Mining Fatigue
Cursed Training Dummy
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)