I've seen a few other people suggest something like this but I think that for 5 Emeralds KB 1 Sticks should be available to buy. They wouldn't be to OP because 5 emeralds aren't the easiest to get but they would really help in games where there are campers and the game is going on forever. You would be able to kill people more quickly instead of going into 20 minute fights where the only objective is to break armor.