Talk:Amon/@comment-216.183.61.122-20120524012618/@comment-3338975-20120524012933

Not that this is exactly related, but it is also true that Metalbending was created because Toph was able to get around the Light Chuckra block that sighted Earthbenders had with Metal, because she was blind, and therefore did not have the same degree of illusions facing her eyes as other Earthbenders did. I'm not sure how exactly that would affect your theories, though.