And why is he suddenly a capable fighter? In the first episode, I loved the detail that he quite literally couldn't wield a sword to save his life, because it made absolute sense; chances are that he's never had cause to use a sword before.)

He did somehow somersault away from the hunting lions in the first episode without being sure how he managed it, which gave me the impression that part of his Destiny is having amazing skills specifically when needed by the plot.