Lucky Block addon - is all about win or lose, and there's nothing to rely on except luck. All you'll need to do is to find pigs (they will be replaced by lucky blocks) somewhere around or to spawn them manually, using spawn eggs. Then you will need just to destroy them using hand or some tools, they will drop either nice thing or will do you some harm - that depends on how lucky you are. Among the items that have a chance to drop are diamond tools and armor, iron tools, wool, villager, creeper, explosion, enchanted armor and etc.
Mod was updated, drop rates were changed a bit, now it's harder to get really valuable items and explosions happen quite often. I advise you to destroy them from the distance, using a bow - it will make the process of testing your luck much safer.
Crafting recipes
Installation
Click Install on the file and it will be exported automatically in your minecraft.