You can use it as a weapon.
Note: Minify the command to avoid issues :)
Helmet of Hearts
Get a mob spawner.
Fireball Of Destruction(Great for Trolling)
The only thing you need to defeat the Ender Dragon
go 1000mph with a walking stick
TnT
Get cool minecraft banners in ONE COMMAND NO MODS!
Herobrine's Flesh
jlf06
jlf06
lunaglimmer
dantdm
orangecreep3r
cyarith