I got the Cyrodiil quest in Imperial City to defeat Molag Bals temple forces and I managed the main dremora woman who was executing the civilians and got as far as a large dragon like creature that flew down from above with a name beginning with U. I have retried several times and keep getting gargoyles attacking as well now. I'm a night blade and tried using brutality potions, the fighters guild skill that puts down traps and varied skills. What can I do to defeat it and rescue the priest. I asked help in zone after dying several times but nobody answered.