The revelry event actually helped me get way more cores than relying on the mercury farm. So maybe in the next event we get another shot at getting cores from daily activities??? I do believe however, that if we want to masterwork an item it should be the same as it was before, however many cores to master work an item and however many to change its stat bonus. I’m not so keen on the system in place but I don’t want the game to shower me with enhancement cores like d2y1 exotics.