Give yourself Chansey and Ditto. I think their roles should be obvious.
Ambipom seems fine. It won't be very effective, but it can chip away at the opponent's health. I would suggest just giving Ursaring a Flame Orb and let it run amok. Replace Restalk with Stone Edge and Crunch, then I would get out Quake for CLose Combat. Sawsbuck I would give Jump Kick instead of Aromatherapy/Worry Seed. Chansey give an Evolution Stone and teach it Counter, Toxic, Softboiled, and Aromatherapy. Ditto just send it out with a CHoice Scarf and revenge kill everything in sight.
Edit: Okay, now that I know what Braviery is, I agree with PokemonBlack in that a Special Attacker should be added. Go with Porygon-Z and give it Nasty Plot, Tri-Attack, Thunderbolt, and Ice Beam with the ability Adaptability.