It is possible to kill it. Potions are recommended.
Achtung: Minifiziere den Command um Probleme zu vermeiden :)
Ironwood Sword
Bananasaber
Crystal Urchin
Frozen Maul
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)