https://www.technicpack.net/modpack/the-herobrine-official.808594
Note: Minify the command to avoid issues :)
Herobreine mob
a big Tellraw For Expert and you are beginners you can check
boomnukemega4343SimusWill
boomnukemega
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)