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>entry hazards and spinners do not exist
>protect is an useful move you should give to a bunch of mons
>you should have at least 1 mon with intimidate, like arcanine or gyarados
>fake out and follow me are useful moves to allow you to use certain strategies
>trick room is not only viable, but also pretty good, definitely an option to consider.
Start playing regular doubles instead of VGC since it's harder, you don't have to choose 4 pokemons, you just have a full team.
But remember that there are no megas in VGC, since they are banned, unlike regular doubles.