[Komskies]

Originally Posted by Bobblehead

Re: Dondarrion's flaming sword

Spoiler!

In the books Dondarrion didn't have a flaming sword; it is Thoros who was famous for the flaming sword. Thoros said he ruined a great many swords by setting them on fire because it ruins the temper of the blade, but that he won a large number of fights simply because his opponent was in awe as soon as he saw it

RE: The Hound

Spoiler!

Additionally, fire is essentially the only thing The Hound is scared of. It proved to be a pretty good tactic for their duel.