Talk:Amon/@comment-76.179.252.45-20120530020828/@comment-5076070-20120530030828

Bryke specifically said only the avatar could energybend. They wanted Aang to end the war in a way without killing the firelord and they wanted it to be in a way that only the avatar could do it, so they invented energybending. So, yes it is a lost art except for the avatar,