A magic rod. Adds you more health. Super strong. Ton of damage.
Note: Minify the command to avoid issues :)
The Destroyer Spawner
The Potion Of Hunger
Baby Long Nose The Zombie Villager
The Superhero Potion
go 1000mph with a walking stick
TnT
Get cool minecraft banners in ONE COMMAND NO MODS!
Herobrine's Flesh