User blog comment:Merlaa/Do deleted scenes have an impact on the plot of Merlin?/@comment-4650675-20121212130434/@comment-5253758-20121213090251

This scene is not deleted. It's in episode "A Servant Of Two Masters" near the end where Merlin (dressed as Emrys) casts a very powerful spell to Morgana when he tries to burn the snake-thing that she had put in his neck.