In "Sokka's Master" Master Piandao knew that Aang was the Avatar from the start, because of Aang using his airbender stance when he attacked Sokka.

Image from preview.redd.it and submitted by 9IceBurger6
image showing In "Sokka's Master" Master Piandao knew that Aang was the Avatar from the start, because of Aang using his airbender stance when he attacked Sokka.

Marionberry-Charming on June 5th, 2021 at 15:06 UTC »

He knew when he learned Sokka's name.

RVAWildCardWolfman on June 5th, 2021 at 16:24 UTC »

I love that in a world of superpowered elemental telekinetics, just being really good at conventional martial arts was still a perfectly valid way to be an elite badass.

otto_mechanic on June 5th, 2021 at 18:26 UTC »

I love the idea of Piandao pulling a sword on his apprentice, then seeing his 3 friends taking 3 different bending stances.