They aren't gods, I wanted to go in a different direction than the games have been going.
You see when Pokemon loose a battle they don't die, they simply loose their will to battle. But these two Pokemon were made with no souls. Therefor they cannot loose their will to battle, they cannot be captured or tamed!
Only by facing these Pokemon with the three special legendaries can the heartless Pokemon gain a heart and be captured.
Unless you got a better idea.
You see when Pokemon loose a battle they don't die, they simply loose their will to battle. But these two Pokemon were made with no souls. Therefor they cannot loose their will to battle, they cannot be captured or tamed!
Only by facing these Pokemon with the three special legendaries can the heartless Pokemon gain a heart and be captured.
Unless you got a better idea.