I think rain dance would be a complete waste of a move. Yes there is swift swim, but so? That's all it would be used for, just to activate it's ability. It's not like they've shown that water attacks get a boost in the rain.
And I really can't see why the rain was cheap. Is there anything they can do so it's not cheap? Seriously with Maylene the clouds were out in the beginning of the episode. And in this one the clouds appeared before they officially battled. So what, they have to show the clouds at the end of one episode, and it rains through the whole next episode, but Ash doesn't use Buizel till the end for it not to be cheap. What would be cheap is if the clouds formed quickly while they were battling but in both cases that never happened.
Misinterpreting my posts is not your fault, negative repping me, and getting very sensitive about my posts because you misinterpreted my posts however is your fault. Think really hard, before negative repping or making a big deal about my posts. I don't appreciate being negative repped for reasons that are a result of misinterpreting my posts.