What a classic kingdom-toppling beauty. This idiom really works so well to describe this episode. That said, I don't have any particularly strong nitpicks about this episode. The strategy is devised very well, to be honest. It's just that I find the defense to be very lax, given how dire the situation is. In most accurate and real life scenarios, this is very unlikely to happen. That said, it isn't impossible so I don't find this plot that absurd.