Aerith and Bob: Andraste and Auragonius are appropriately fantasy names. Rhiannon and Elvin aren't as fantastic, but they're still not too modern. But then Clare? Elisa? Blair? Linda? It's sort of justified though, as the most common names do come from the same country.
Fridge Brilliance: I always thought it was weird that Radiance, who is half-blind, was the most observant, regarding colors, appearances, and such. Then, I realized; she lost one of her eyes, so she realizes just how much her eyesight is worth!
Fridge Horror: Elvin tells Andraste he's going to talk with Dyssassa. Their conversation is never shown, but considering that earlier she said she knew 'how to deal with sass', can see a person's every fear, and previously used those powers on him...
General Syok says he once had to choose who'd live: Elvin, Elvin's mother, or Elvin's unborn sister. He chose Elvin because his son would have the best chance for a happy life out of them all. It makes you wonder (ignoring the fact that Syok murdered a pregnant woman)...just how terrible were Syok's wife and daughter would've been.
Elvin used glamour to hide some bruises on his face, and Syok commented that he was good with it. Exactly what else has Elvin been hiding?
Another Elvin one. He's spending his life serving the daughter of two people who stood by and let him be tortured, and their daughter despises him for his lineage.
Renaissance Man: Several of the Luminousian men, who are seen dancing, composing poetry and discussing literature.
Also Elvin, who speaks several languages, has knowledge of piracy and sailing, is good at dancing, and is excellent at archery.
Royal Blood: Loads of examples, including Andraste, Radiance, Xandrina, Sunfire, Chestnut and Sarai.
Royals Who Actually Do Something: Played straight and subverted. Nymphian rulers are well-known for fighting in wars alongside their men, while Luminousian ones normallly appear to do nothing but throw parties and gossip, leaving the fighting to generals.
Running Gag: Elvin bringing or getting Andraste drinks.
Throwing Your Sword Always Works: Inverted. Andraste throws her sword in battle, and it doesn't harm her opponent. However, it did work as a distraction, which was what Andraste intended.
What Happened to the Mouse??: Possibly a Sequel Hook, but Elvin's necklace is shown to be special. It holds some sort of memory, so powerful that him having it persuades the reluctant Latlan Council to join Andraste's cause. Then, it's never mentioned again.
You Have to Believe Me: Elvin tends to tell Andraste this a lot, particularly when the boy she likes is a vampire. She doesn't believe him.