Do you mean that the kits are too overpowered?
In that case, I think the most OP one is the diamond block, correct me if I’m wrong, And with that the highest damage weapon you can craft are; diamond sword, and diamond axe. (Depending on which version you are playing). This isn’t definitely a kill, as you can get lots of weapons and armor from the luckyblocks.
Also, the diamond block is only 500 points, which aren’t very hard to get.