Rng balance

In Minecraft the mace is the best weapon currently and as a player whose play style revolves around it, it disappoints that the rates of getting the heavy core is absurd. You can loot hundreds of trial chambers and not get a single core. What I suggest is that there should be a slight increase in chances everytime you don't get it. Even as low as 0.5 percent. And after you get one that increase in chances disables and the odds get back to default. This can be applied to every rare loot.