Number of missable trophies: 4 – the trophies for reaching the Map Chamber with each of the four houses are mutually exclusive, can only get one per playthrough because the house can’t be changed, must do partial playthrough for each house (trophy unlocks ~2 hours into the game): The Toast of the Town, The Auror’s Apprentice, The Gryffindor in the Graveyard, The Wise Owl.
