In Season 3, Esther cast a spell on the white oak stake while submerging it into the melted silver prior to giving to Alaric. Before presenting the stake to Alaric, I recall Esther describing the stake as the "ultimate weapon." I also recall her telling him that the stake would burst into flames immediately upon being used on an "Original." With that said, I'm curious as to how that very stake (which was used to kill Kol) is still in existence. Did I miss something?