I'm watching this show because my friends told me it was going to have King Arthur as a new character.
Why is Arthur portrayed as a sword-obsessed madman on this show?
Arthur doesn't need a long giant sword to fix his kingdom. According to legends I've heard about Arthur, the sword is just a symbol that he is the chosen king. If he gets into a sword fight with other men his regular average-sized sword is more than adequate to satisfy his needs.
Also, I've never heard of Arthur using magical sand to brainwash Guinevere or rebuild Camelot. I understand/sympathize with Arthur because maintaining a marriage and making an entrie kingdom prosper is a very difficult task, especially when everyone now expects it to be part of your destiny. However, using magical sand to do all of it in a few minutes makes Arthur look very lazy and only interested in lengthening his sword.