OMG PWNZOR FOOL. WE PEEPS WILL ALWAY REMEMBA YOU AND SHIT FOR YOUR MEDIOCRE MOVE AGAINST AFKERS.
Sorry, but a simple move like that isn't going to be regarded as amazing, especially when it only works on people afk.
Look, the use of symmetry can be useful, but try experimenting with different joint states. It's best to try some moves out on single player first, then incorporate them into multiplayer. Or do what I do and just make it up as you go along