Changes

The [[Witch Mother]] makes it clear that the resurrection [[spell]] can only be used once, telling Sam that once [[Death]] sees a loop hole, "she closes it." How the Witch Mother was aware that Death was female is not known, as [[Rowena]] was surprised to learn this fact in [[13.19 Funeralia]]. Its It's possible this has become more common knowledge since then , as the Winchesters themselves didn't find out until months later.