I just realized that smite and sharpness aren't compatible, and if they are, then the anvil just refuses to combine them. Also, the anvil won't combine anything with three enchantments with something else. IT WONT EVEN RENAME STUFF WITH THREE OR MORE ENCHANTMENTS
I really hope he can find a way to fix the dupe bug. Whether it be fixing the bug entirely or finding a work-around I'm fine.
Turning it into an entity is not a bad idea, maybe just a minecart-like entity that can't be pushed but has gravity?
I love the idea!!! but i think it would be cool if it could make something like re-enforced tools using an extra piece of material allowing the use of a sleight boost before you could get an enchanting table!
So they get more cracked with use, but do they eventually disappear? I feel like that may be unnecessary, considering the high prices both for making them and actually using them. If the cracks are just for looks, fantastic!