Well, we can help guide you in the creation of a team. However, we won't make it for you, 'cause it's your team. Do you have any preferences as to what Pokemon you want to try? Maybe look at
this thread to get a rough idea of what's viable and popular. You might want to check our
resources too.
Also, not all teams need to have three attackers and three walls, or anything along the lines of that. Plenty of successful teams are very offensive or defensive. In fact, most teams are
usually swayed to one or the other.