Note: Minify the command to avoid issues :)
Mobs In A Book -- WORK IN PROGRESS
MOST OP SWORD!!!
OMG FLYING SQUID
Summon Herobrine (This Command Not Tested Yet)
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)