Ok but Zuko using the knowledge he acquired during his banishment to help him as the Fire Lord. Like making small talk with Earth Kingdom dignitaries about their local foods that he enjoyed and even misses. Like having in-depth conversations with his captains about sea currents and navigation. Like, in the middle of a meeting with several high-ranking naval officials, pointing out flails in security, like how a person can cling to a Fire Nation ship for hours at a time, or climb aboard using hatches on the upper decks, or disguise themselves as a lower ranking guard with easily accessible spare armour….
Though none of his experiences can prepare Zuko for the long, awkward silence that comes after he admits to doing or at least knowing something illegal and/or completely buck wild
fire lord zuko: you should maybe revisit the security measures around the water ducts that the sealturtles use
northern water tribe leader: that’s not necessary, no one can survive submerged in the artic ocean for so many minutes
zuko:
zuko: remember that time the fire nation attacked you
Zuko: okay first you have to promise not to get mad
Earth King: Tell me about your first visit to Ba Sing Se.
Zuko:
Okay, but before all this:
Advisors: Princess Azula did perform the astounding feat of infiltrating Ba Sing Se…
Zuko: Huh? Oh, that’s not hard. It’s pretty nice, if you don’t mind the brainwashing, but you can’t get a spicy octopus for love or money. We ate so much jook. *shudders*
Advisors:… you got in too…. interesting.
*
Advisors: The mysterious Water Tribe city at the North Pole
Zuko: It’s a pretty place, if you like ice. Lots of sealturtles. They have a really nice little sort of sacred grove thing there, too, I kidnapped the Avatar from it once.
Advisors: …. we have some questions….
*
Advisors: We still have not found the Fire Lord’s secret supplier of new weapons -
Zuko: He’s at the Northern Air Temple. (Realizing they’re all staring at him) Oh, no, I haven’t met him personally, but I have friends who have. He sounds like a very interesting guy.
Advisors: SO MANY QUESTIONS
*
Zuko: (while directing post-war reparation efforts) Oh, and we need to send a lot of people to work on replanting the forest around this obscure village.
Advisors:…. may we ask why?
Zuko: Apparently the local panda spirit is pretty mad about having its forest burned down.
Advisors, now afraid to ask: ….Yes, Fire Lord.
*
Every now and then, the curiosity gets too much and they’ll bring up something like ‘legendary sand benders’ or ‘Southern Islands’ and Zuko invariably produces some tidbit of local knowledge (either his own or gleaned from the Gaang’s stories) and six Foreign Ministers have resigned in fear and the seventh one only barely held it together when Zuko greeted an envoy from a tiny, insignificant Earth Kingdom island with ‘Listen, I am really sorry about what happened last time, I hope the supplies I sent helped with the rebuilding, do you still have that giant eel thing?” IS THERE ANYTHING HE DOESN’T KNOW.
Advisor: Before we start the meeting, I’d like to address the anniversary of Captain Zhao’s mysterious disappearance…
Zuko: At least he died doing what he loved?
Advisor: What do you mean, died?