Actually interesting copper tools
OxyTools adds copper tools that oxidize over time instead of taking durability damage. They're crafted how you would expect, and are slightly worse than iron tools. As they oxidize, they become progressively worse.
Using a fully oxidized copper tool has a 1/10 chance of causing it to break. You can remove oxidization from a copper tool using a grindstone (though this will remove enchantments) or by being struck by lightning.
Holding a copper tool in a lightning storm makes you more likely to be struck by lightning.
Talk about this mod on Discord
Requires Fabric API