Board Thread:Series 5 Discussion/@comment-4190137-20121206075302/@comment-5621713-20121207092610

In the final battle scenes, Merlin is not seen himself but as the Great Dragoon. I think that probably means that he is still hiding his real identitiy...why use an aging spell that zaps the user of energy when he is fighting Morgana if there isn't a reason to hide who he really is?