well, it's pretty automatic...UNLESS you are playing something that interacts with it. A hard control deck that can take out knights and big targets via AC/Mandrake will change the way they play. So will a Reveal deck packing concealers like Masters of Disguise (which actually work more often than mangonels, just gonna put that out there). I've won against it with a bricked Cahir because of a crucial conceal of the Knight, making 2 Spotters from STR 23 to STR 10.