Well, lightning is good against things that aren't grounded.

[She's not going to try and explain friction though.]

It's not really a surprise that Pikachu is good at it. I had no doubt. [She smiles at the little guy, running a charged hand along his back.]

But if Snorlax can learn to, then yes, I'm sure he could manage to be really good at fighting flying things. Our enemies included.