I just rewatched LotR- Return of the King for the first time since I saw it in the cinema a couple of years ago, and I noticed that Gandalf the white isn't doing much wizardry in this movie. In fact, when he is fighting the armies, he is running around with a sword just everybody else. I thought he was a powerful wizard, yet he is doing jackshit with his powers. Did he lose his powers or something, or was he just limited?