What is the meaning of “elemental” teams like rain and all?

I recently bought Ultra Sun

I just wanted to ask what is the meaning of these teams like rain and drought?

Are there any other of these teams than rain and drought?

Also which Pokemon are the most prominent in them?

Where can I use these different teams

And

Which pokes can I use in these teams?

Pleaselog inorregisterto add a comment.

These teams are usually intended for competitive battles (not defiant battles :P). US is an old game, so it might be difficult to find opponents in that game. If you want to battle opponents using US game mechanics, then it’s usually easier to go toShowdown!, click the box under “Format:”, click “[Gen 7] OU”, build a team, and click “Battle! Find a random opponent”.

Drizzle: usually set up by a Pelipper, used by offensive waters (like Swampert and Greninja), fire-weak Pokemon (like Scizor and Ferrothorn), and hurricane users (like Tornadus)

Drought: usually set up by a Charizard, used by offensive fires (like Victini) and rarely a chlorophyll user (like Venusaur)

Sand Stream: usually set up by a Tyranitar, used by sand-immune walls (like Celesteela), sand rush users (like Excadrill), and regenerator users (like Tangrowth and Toxapex)

Toxic Spikes: usually set up by a Toxapex, used by defensive and passive Pokemon (like Chansey, Sableye, and Gliscor)

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