I have a pretty solid Champions Double Battles team

BSDuck

https://community.pokemon.com/en-us/discussion/comment/186373#Comment_186373

Sadly protect is pretty much mandatory in doubles, it enables you to play defensively. Without it, repositioning is basically impossible

Prince_Ludwig

https://community.pokemon.com/en-us/discussion/comment/186373#Comment_186373

Since your strategy is to overwhelm your opponent with sheer offence with Earthquake and then strong Fire / Flying / Ice attacks to hurt Ground resistances (Grass, Bug, Flying), you should make that Chompers as strong as you can. Whether that's with Soft Sand or Life Orb or Garchompite (which having Sandstorm up would also help with Mega Garchomp's Sand Force)… And you can boost Chompers with Helping Hand or Coaching, both of which Hawhawhaw can learn.

Hades0918

https://community.pokemon.com/en-us/discussion/comment/186397#Comment_186397

But I just attack attack attack!

BSDuck

https://community.pokemon.com/en-us/discussion/comment/186401#Comment_186401

clicks one defensive move

Hades0918

https://community.pokemon.com/en-us/discussion/comment/186406#Comment_186406

And I'll attack you next turn!

BSDuck

https://community.pokemon.com/en-us/discussion/comment/186407#Comment_186407

As much as I disagree with that strategy, you have a point

sir_uledge

https://community.pokemon.com/en-us/discussion/comment/186401#Comment_186401

But you have to set up the conditions first, then you sweep.

Hades0918

https://community.pokemon.com/en-us/discussion/comment/186598#Comment_186598

The condition is Tailwind

I always use it first turn

That's really it

Voltareon2012

My team basically just relies on my Raichu and my Hisuian Arcanine, Spark and Leopold, to just deal lots of damage UNLESS I see a Ground type on their team. Then I open with Mimi and Snowy (Mimikyu and Alolan Ninetales). My kind of backup members are a Dusk Form Lycanroc (for reasons that I don't understand. Mostly for Poison types) and Sylveon (who uses a load of nonsense that I came up with one day and it somehow actually works).