Need team vgc 2017 help

I having problems with choosing a vgc team and here is a list of BR Pokemon I have

Alolan Raichu
Alolan Muk
Alolan Marowak
Politoad
Tapu koko
Salamence
Gigalith
Gastrodon
Tapu lele
Kartana
Porygon2
Garchomp
Krookodile
Pelipper
Arcanine
Milotic
Celesteela
Gyarados
Tapu bulu
Porygon-Z

Out of these Pokemon what team should I build and please also give me strategies for each suggested team you recommend for me

This is my third time trying to respond to this so forgive me if I sound jaded.

If you'd like a royal road to team building I would recommend just ripping a team off of http://trainertower.com/

Ya I'm not going to build your team for you, but if you try building one on your own I'll help you make adjustments & improvements to it.

Outlander said:

Ya I'm not going to build your team for you, but if you try building one on your own I'll help you make adjustments & improvements to it.

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The team is tapu koko alolan raichu tapu lele arcanine kartana and pelipper

We still need the moves, natures, EVs, items, and abilities for each Pokemon. Those are important, you know.