Scott C Asked: Rate my pokemon Black Team?

They are currently on level 60.They are going to Changelle the Elite Four rematch.What Level should i evolve Lampent.They are going to be trained to level 78
Tell me what you think about this team.what movesets should i change and what too.
Galvantula Compoundeyes: Bug buzz, Energy ball, Discharge, Electro ball
Lampent Flame body: Psychic, Overheat, Energy ball, shadow ball
Seismitoad Posion Touch: Earthquake, Surf, Posion jab, Drain punch
Zweilous Hustle: Crunch, Body slam, Dragon Pulse, Work up
Ferrothorn Iron Bards: Power whip, Bulldoze, iron head, Ingrain
Sawk Inner Focus: Bulk up, Brick Break, Stone Edge, Close Combat