No thats BS this is just like that “Stealin” thing. You should only be able to right after a gate card is set. Just like Aquos should only work at the beginning of a battle and not only that but you need an Aquos monster at the begginning of that battle.
Ok I've learned to check every card the opponent uses because this would have been the 3rd time I was screwed over. Aquos only works at the start of the battle.