Hello im doing 5 vs 5 here, it helps you people if you are new to those champion you can click on them and try them out if u think they are good build...

try to work as a team by:

*going in a gank / or team fight what ever u call it..

*while your team and the other team is busy fighting example: they are fighting at top, and if u were teemo/yi or other good damage or attack speed you can push towers at mid or bot.
so that can actually make your teams win