Yeah I was realized the Mean look trick wouldn't work, but yeah that gyrados is done now it's pretty beast not going to lie.
But anyways, I'm just letting you know that I can give you the TMs you want for free or for very little instead of you having to give you're poke's away for them.
That won't work. Once Mismagius switches out the opponent is no longer trapped by her Mean Look. The key is the send in Gyarados against something that can't really handle it, then as the opponent switches you get a free turn to DD. After that it's straight sweeping, just make sure you have the right mix of moves because they will obviously send in something with an electric move, yet that could be anything.