The "Sludge Hammer" A Skulk covered tool meant to Break and Smash!

As of currently, there is no way to crack blocks easily. The only way is to put them in a furnace and wait for almost what seems like years in order to decorate your walls. My idea is the Sludge Hammer, a new type of loot found in the Deep Dark that will SMASH blocks when used on them. It would crack un-cracked block and un-polish polished blocks.

It would look like a diamond hammer covered in skulk, as to connect it to the Deep Dark and (At least in my opinion) would look REALLY cool. As of currently, the Deep Dark has no confirmed loot, and would need some way in order to incentivize players into entering. A new tool could do that, as chest full of diamonds, gold, or iron may not be worth the effort, as they can be acquired elsewhere and more safely.

If I were to talk about combat, I would say that it would fall between a sword and an axe. In order for it to be more unique, it could also have increased knockback or even no knockback. This could add a new type of weapon specialized for close range combat, forcing opponents away or making sure they stay close when the blows hit them. I would personally prefer the no knockback option, as it seems the Warden has high resistance to knockback and would tie the tool to the Deep Dark even further.  

Feel free to add more ideas in the replies, as I know right now it seems to have limited use, and It would be bad to make it a tool with limited use and scope. I don't want it to be like a trident, where you get 2 and never get any more.