answers: Prue
context: described as an alcoholic. During séances, Eric Dingwall told Crandon to take off her clothes and sit in the nude. Crandon would also sometimes sprinkle luminous powder on her breasts and because of such activities William McDougall and other psychical researchers criticized Dingwall for having improper relations with Crandon. Historian Ruth Brandon has noted that as Bird, Carrington and Dingwall were all personally involved with Crandon, they were biased and unreliable witnesses. Magician Fred Keating who had observed Crandon at her house suggested Carrington pretended some of her phenomena baffled him in an attempt to get financial backing for his </s> out to be the former Round Table). It is around this time that Jack learns the truth of Brian, who is actually Brianna (Meghan Ory). She disguises herself in order to avenge a wrong done to her family. In his search for the grail, Merlin suspects something is afoul in Camelot that caused the Grail to depart. Merlin confronts Yvonne (who is to be married to Lord Weston when the Grail returns) and her guardian Master Burton (Andrew Jackson). Later while touching the Grail's stand, Merlin sees a vision in which he learns the truth of his absence. The Lady </s> book, the three sisters each receive a magical power and discover their destiny as The Charmed Ones – the most powerful good witches the world has ever known. Gaining the power to "move things with her mind", Prue battles with maintaining control of her newfound powers and keeping her identity as a witch secret. Due to the witchy interferences in both her work and personal life, Prue finds it difficult to rekindle a relationship with her old high school flame Inspector Andy Trudeau (T.W. King) and stay on top of her new job as an appraiser for Buckland's Auction House.
question: who was the most powerful witch in charmed