Amethyst dagger

I know Microsoft and Mojang don't want to add knives, but this isn't a knife, it's a dagger. It's medieval, and what it would do is strike very quickly and barely push back. It would be crafted with .A stick and an amethyst: if you strike it against a stone, the stone will turn into cobblestone and the dagger will become increasingly sharper, with a maximum level of 5 regardless of the enchantment.But it will permanently deplete the durability, which would be very bad because it would add a cooldown to Minecraft Bedrock, but I say it would be good.