(You can edit you mob :D)
Note: Minify the command to avoid issues :)
OverPower Skeleton & More
OverPower Zombie = = [WTH]
Tellraw OP Sword
Hug ArmorStand
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)