Tools with Sharpness (and maybe more)

Let shovels, pickaxes and hoes have sharpness and maybe other enchants like smite, fire aspect, knockback, etc.

If you think about it this isn't op at all since it's way better to just have a sword or an axe, but this will let players have what they want as weapons (which is perfect for SMPs and RP) or save inventory space by using their tools as weapons and would even let to the hoe being useful since you could have more damage (even if it's only 4) but with the speed of the hand which can be a little useful in combat.