Don't add extra fortune, (Will crash your Minecraft).
Note: Minify the command to avoid issues :)
OP sword sign (in 1 command 1 shot the Ender Dragon)
OP Sword (one shot everything)
Rabbit DNA
OP God Pickaxe
go 1000mph with a walking stick
TnT
Get cool minecraft banners in ONE COMMAND NO MODS!
Herobrine's Flesh