He's a foodie, all right. Defeat him!
Note: Minify the command to avoid issues :)
E-Golem
Meta Mutton, The Super Food!
Tower 'O' Quiver
Magical Particles 7: Suspension Dust! (Doesn't NOT make you levitate!)
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)