So with the new additions making mining more dangerous for your day-2-day miner, I'd like to suggest making another homage to Dwarf Fortress, and make it possible to use the Pickaxe as a weapon. However instead of taking Melee Combat, or Unarmed to power up it's fighting style it takes Masonry to give it's moves weight and damage.
This would help with combatting slimes, worms, and other players as you wouldn't have to suffer combat cooldown to give yourself a fighting chance. As well as allow miners to still specialize as being miners, without having to direct LP to other combat stats.
I admittedly do not have any ideas on what kind of Combat Moves would be appropriately exclusive to this school of combat. So I look towards the community for sound ideas, and will edit my post as new ideas come forth.
Combat Moves: