So, come here if you need help building a team.
Most teams I build consist of:
2 walls, 1 physical(D stat) 1 special (Sp. D stat)
2 sweepers, 1 physical (A stat) 1 special (Sp. A stat)
1 lead (stealth rock, disruption of stealth rock, early sweeper like yanmegma, etc.)
1 of anything I feel the team needs, could be a staller, sweeper, tank, wall, etc.