[Enginseer-42]

Buildings with class and crafting requirements that offer special bonuses. And special crafting equipment that augments the crafting process, that's locked to those buildings.

IE A Grand temple that costs faith as well as coin to imbue, but doubles the effectiveness of all faith abilities done inside it. A Big Alchemical refiner, that can only be built inside a dedicated Apothecary building, but gives a chance of getting two potions instead of one whenever you make one.