Pokemon Uranium

I scream, with a share on top. 

I was thinking about a stupid thing, then I thought of a sport.

Name three Pokémon, then use two of those Pokémon,

With a Pokémon stat deference, in the next shot.

So it is like this:

Charmander, Bulbasaur, Squirtle.

-then-

Bulbasaur, Pikachu, Charmander.

See?

You might want to offer some support, with a little hypothesis. 

Water is obviously common, but with a little charge, it is as right as rain. 

There we go, forum.