That's what everyone does lol. I was battling Limitless from smogon and he complained when he didn't get a miss with his chomp when he critted my tangrowth earlier so he wouldn't have even had it in the first place.
Lol, all you have to do is be consistent in gen 5 is use Garchomp | Jirachi | Rotom-W | Tyranitar | etc etc and you win, which is really boring and can still be haxed lots.