Talk:Azula/@comment-69.234.198.68-20120422034115/@comment-67.5.197.96-20120422192505

In Avatar: The Last Airbender's commentary it was specificly mentioned that the only people capable of generating lightning were Iroh, Ozai and Azula. It is safe to assume that Zuko could do it later in life as well.

It is safe to assume that the technique got out of the family at some point.