Make the mace weaker

1: make the mace (without enchantments have a damage cap of 75)

2: make the density enchantment increase the damage cap of the mace by 5 per level instead of directly increase the damage of the mace when you are falling, the damage cap of a mace with density 5 will be 100

3: make the mace unable to be enchanted with smite or bane of arthropods

4: make the Breach enchantment only decrease the effectiveness of armor by 3% per level and make the max level of Breach be 5, a Mace with Breach 5 will make armor 15% less effective

5: make the mace reparable with heavy cores instead of breeze rods

6: decrease the Base damage of the mace from 7 to 6