Pigs can fly, pigs can oink... why not pigs can kill?
Note: Minify the command to avoid issues :)
Flying Pig (RIDEABLE)
Killer Piggy Spawner
My Rideable Dragon
Summon Lava Boss
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)