Here i will show you a nice and easy way to make a team.
Note i didn't write this myself, this is from a youtube channel "Pokemosh"
Heres a team list, for easy way
The way i see it, there's 3 parts.
1~~ Lead, This is the lead pokemon you start off with,I actually recommend starting without your stealthrock pokemon, but it depends on your playstyle.
2~~ Lead support, This is the pokemon that patches up the things Lead couldn't, but can also be your stealth rocker
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3~~ Core 1 (This is a main pokemon, it can be any type, with any moves.)
4~~ Core 2, Same as above
5~~ Core 3, Same as above
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6~~ The glue, Revenge kills, preferably a sweep
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Tips and tricks.
Try to stratagize a bit, have a theme, maybe weather, trickroom.
Try and find a way to counter most opponents, use common and incommon moves so your opponent doesn't know your team from the get go.
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This has been a tutorial from pokemosh, rewritten for you.
~~Josh