A very short video explaining how to add attributes to items
In snapshot 13w21a Mojang introduced the new attributed system. This will change the way damage, potions and custom maps work. This essentially makes it so custom attributes can be applied to items. So armor, weapons, or any item can give the player an effect.
This tutorial show how to apply effects to items using NBT data, but before you can start you will need this schematic.
Edit:got added in 1.6.1.....
G'Day