(Help) My first team for competitive battle

[Komari740]

Hi all !
I'm a beginner and I would like creat my first team with some pokemon that i like I have everything for breeding, EV and so on~~
But the thing, it's that I don't really know what my team "must" have in it, like how many bulky pokemon or I don't know xD

At first, I though about a team like that:
Mega Mawile, Vaporeon, Garchomp, Rotom(heat), Whimsicott and Tyranitar (I tried to have many type).

Is that a good start or something ? x) (I want to play VGC )

Thanks for your help !

[tygaa2]

Check out the intro to vgc post!

[Komari740]

Ahhh I haven't seen the post about the mentor (i haven't the time to check everything on the forum >< too busy by my job ;_
Is that the intro you was talking about ?
Thank you