"I was reading “Phantom Limbs” by blak_cat and in it they point out that before zaheer korra always had her arms exposed, but after being poisoned, when she returned to republic city she covered them up.
One of the most beautiful things about the Legend of Korra is definitely the fact that even the villains change and evolve over time. They grow and mature just like all the other wonderful characters on the show, and that’s spectacular.
I think we know what the real badass boss speech was "Don't flatter yourself." Azula (It's both a bad ass boss speech and a peek into the tragic expectations that have been forced on Azula even by herself)