I can understand that there's reasonable doubt to believe that Geomancy doesn't deal damage, but why is everyone speculating about how it would work compared to former recovery moves? It was never officially stated to heal Hp >_>
If we're allowed to make guesses, my bet is that it switches your opponent's Pokemon and locks the new one in the field. 5 pp is all you need to sweep teams that are reliant on switching in between themselves. AND if Xerneas is speedy in the slightest, it can keep itself alive by switching the opponent out before they can even touch him, should this be the effect of Geomancy.
If we're allowed to make guesses, my bet is that it switches your opponent's Pokemon and locks the new one in the field. 5 pp is all you need to sweep teams that are reliant on switching in between themselves. AND if Xerneas is speedy in the slightest, it can keep itself alive by switching the opponent out before they can even touch him, should this be the effect of Geomancy.
It would be impressive if they found a way to lock the use of Pokemon Bank until you beat the game, even if you downloaded it before beating the game. Chances are they didn't build the game with a barrier in mind, and unless they decided that any X or Y game being used needs a Hall of Fame record before you can move Pokemon around (which would be downright rude), I don't see why it would be only post-gameThey have the obedience system so you can't just use level 100 mons from your last playthrough to win so maybe it won't be postgame