S12.E13: Family Feud
Family Feud - When Sam and Dean look into a murder at a museum, they learn a ghost from a merchant ship that sunk in 1723 may be at the heart of the mystery
Cartrox in 3, 2,1...
Was the Nephilim in Lily Saunders... (where the retconning began) supposed to have been fathered by an archangel? I've blanked out so much of S12 I honestly don't recall.