The lucky block mod is an interesting but potentially devastating add-on to Minecraft. It adds a Question mark printed block to the game and once broken has a chance of spawning something good or something awful.
Or something devastating like a block of lava and fire:
The point of this mod is to give new usage to gold ingots. If you find yourself always stocked with gold but don’t ever use it, this mod is for you. You can now turn that weak metal into Lucky Blocks and let fate decide what comes out.
It’s a neat mod for multiplayer servers or for making game maps but with how random the blocks behave it can be a dangerous mod for your regular map. It’s recommended to either back up your map or create one specifically for this mod lest you risk wreaking unwanted havoc on your favorite world.