User blog comment:Morganaforever/Episode Review: The Diamond of the Day Part 1/@comment-5829707-20121223054011/@comment-5653093-20121223144000

I also think that Merlin threw the slug off - the slug did not get his full power, otherwise he would have died. When the slug went for second helpings, it got hit by Gaius....Merlin simply couldn't access his powers.....