A Mattock is a useful digging tool that also makes a decent weapon. It can be bought in certain Shops or occasionally found in Crates. It is also guaranteed to be found at the bottom of a snake pit, buried beneath the two rubies. (It's always directly under the left ruby.) The difference between a mattock and a pickaxe is that mattocks have a flattened adze instead of a chisel head, making it more effective at digging through dirt and chopping wood.