User blog comment:Ḡwẵine Ḹٍٍkƨ Ĺiĸe Ͼềлȑềd/WORST plot hole in the HISTORY of 'Merlin'/@comment-3012002-20121014214740

How is that a plothole? All Arthur knew about Mordred was that he was a druid NOT that he had magic. He never knew about Morded's magic.