not sure why /ac "Thrill of Battle" <me> isnt working... perhaps try it without <me> as sometimes that does work I've been told.

As to /echo in battle... sometimes the chat window has too much flying past on the screen and so therefore, while it may do its echo properly...you might not be able to see it go by. This happens to me alot. if I use anything with the /echo out of battle I always see it.