I got to room 73 with this team, although I'm gonna try again tonight, since I made a stupid mistake and kept my salamence in vs a lapras, thinking that Draco Meteor could 1 shot it. I'll post later, to see how much farther i get.
Apparently theres lots of synergy with metagross and flying pokemon such as salamence, because the BT people are smart-stupid AI, who will EQ gross if they have it, which warrants a free switch in from salamence.
Salamence @ Choice Specs
Ability: Intimidate
Nature: Modest
EV's: 252 Sp Atk, 252 Spd, 6HP
Draco Meteor
Hydro Pump
Flamethrower
Dragon Pulse
My starting pokemon, who's primary job is to 1 shot my opponents starting pokemon with a draco meteor, or hydro pump/flamethrower if they're weak to those moves, then switch out to my physical "tank", metagross, or my special wall, blissey.
Metagross @ Life Orb
Ability: Clear Body
Nature: Adamant
EV's: 252 Atk, 108 Spd, 150 HP
Earthquake
Explosion
Agility
Meteor Mash
Decent sweeper, but I usually use him to explode something that salamence has trouble with, such as palmers cresselia. Note that agility is not very useful in BT, and that i'm using pokemon from my online team offline.
Blissey @ Leftovers
Ability: Natural Cure
Nature: Bold
EV's: 252 Def, 252 Sp Atk, 6 HP
Aromatherapy
Seismic Toss
Ice Beam
Softboiled
The real backbone of my team, blissey walls off any special attacker, such as palmer's milotic and heatran and has just saved me on so many occasions.