Note: Minify the command to avoid issues :)
STUFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
Ender Night Boss
OP-XP
U..L..T..I..M..A..T..E.....A..R..M..Y..!..!..!..!
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)