Forum:Impenetrable Formation or face down rulings

I was wondering for a long time already, what happens if you activate Impenetrable Formation select Any face-up Monster That Flips itself face-down and then you flip it face-down with its effect, while there is another face-down monster. Then use Shifting Shadows for both.(all your monsters are in defence at the moment) Because you cannot tell anything you cannot tell what the selected is.

what will happen now? Dark Elwin (talk • contribs) 18:09, April 3, 2012 (UTC)