So far as strategy goes, since Swablu is a Basic Pokemon, you don't need Altaria. I will do this as if I won't use Altaria. So far as strategy, you'd probably want a Pokemon on the bench with 2 Rainbow Energy.
Pokemon card rating;
I would give this a 1 out of 5 rating. It has below-average HP. It's move isn't that good. And it is pretty bad.