30-day ship meme, day 7
Day 01: What is your current favorite ship?
Day 02: What was your very first ship?
Day 03: A pairing that needs to happen now?
Day 04: The pairing with the most chemistry?
Day 05: The pairing with the least chemistry?
Day 06: The best chemistry?
Day 07: The most heartbreaking scene?
Merlin/Arthur, Merlin
This is the scene from Sins of the Father, in Series 2, when Merlin has to stop Arthur from killing Uther to avenge Ygraine's death. Merlin, who had been practically dancing when Arthur pointed out that it was possible that not all users of magic were evil, murdering bastards, stood up and said to Arthur that Morgause, who had supposedly called for Ygraine's spirit so Arthur could meet her, was an enchantress out to destroy Camelot and had probably lied to him. This tactic works, but Arthur later regresses on his stance on magic.
The heartbreak on Merlin's face even as Arthur drops his sword and no longer actively tries to lop his father's head off still makes me tear up. It's so sad, even if I could just smack Merlin for lying to Arthur, no matter if it was to save the most ungrateful king ever.