The move Dark Void is a very controversial move. It puts both of the opponent's Pokemon to sleep. This is very unbalanced, unlike Spore which only puts 1 Pokemon to sleep, Dark Void puts both. This puts your team at an extremely BIG disadvantage, to the point where if you successfully land a Dark Void, you've practically won the match. It's been banned before, I don't see why you can't ban it again for the sake of the game, or else the game will be completely reliant on whether your team can counter Dark Void to decide whether you can win or not.