User blog comment:GWAINE/Merlin - Episode 5.11 - 5.13 - Titles Revealed/@comment-4046567-20121201105223

Love the names..........I think it has a meaning:
 * The Drawing of the Dark: Mordred is 'drawing' into the darkness as Kara dies
 * The Diamond of the Day: The winner of the battle

I don't know...I just made that up!! :D