Me and my friends are planning on doing this quest but we wonder why cant we just farm the easiest one. I know that the curses last 14 days but if we do the same boss more than once will the curses increase? I don't believe it's the case because otherwise there would be no point on doing the others 4 since you only need to have the curses to defeat the final boss. I wonder if this is actually possible or will the access to the boss simply wont let you do it. Wonder if anyone has tested it yet?