Fridge / Doctor Who S36 E8 "The Lie of the Land"

• In "The Magician's Apprentice" when Missy wants Clara to feel safe meeting her, she requests eight snipers, three for each heart and two for the brainstem. Here, we learn from the executioner that Time Lords have three brainstems.
  • Yes, probably a continuity error, but can be explained by Missy doesn't actually want Clara to be able to kill her, so she understates.