My internet on my 3DS is now working, so could someone message me ASAP if they would like to help. And if any Pokemon White 2 users have a Rufflet / Bravairy that they could give to me, that would be awesome.
Gengar @ Wide Lens EVs in SP.Attk Ability: Levitate Shadow Ball Focus Blast Thunderbolt Energy Ball/Giga Drain
I have the Wide lens because I despise missing with Focus Blast, and gengar doesn't learn any other special fighting moves. Focus blast removes rock and steel types, and shadow ball decimates ghost types. Gengar alone will be taking out most of the pokemon who will be resistant to explosion, and this is his main function. He is fast, hard hitting, and has great coverage.
Drifblim @ Enigma Berry EVs in Attk Ability: Unburden Acrobatics Stockpile Tailwind Disable Sets up tailwind in the first turn and absorbs damage fairly well. Acrobatics is great for taking down remainders, gets STAB, and can hit anything on the field. Stockpile makes your resistances godly, disable screws up people when they least need it. Acrobatics can kill remainders.
Regirock @ Normal Gem EVs in Attk Ability: Clear Body Earthquake Rock Slide Ice Punch/Fire Punch/Brick Break Explosion
Earthquake is great for hitting everything without killing himself in the process, and conveniently doesn't effect the wingmen (gengar and drifblim) as well (even azelf is immune). Rock slide gets STAB, flinching chances (great with tailwind), and hits all three if regi is in the middle. Ice punch or Fire punch will give you good coverage, or if you want brick break can take down dual screens (pain in the rear). Explosion, once again, is explosion.
Metagross @ Steel Gem EVs in Attk Ability: Clear Body Bullet Punch Ice Punch/Fire Punch/Brick Break Protect Explosion Generally Metagross is to get opponents to attack him after the first turn where landorus exploded. His protect will prevent dying from something else exploding. Sidenote: Regirock doesnt have protect because he takes nothing from explosion anyhow. Give him one of the three moves that you didn't give regirock. I ended up giving regirock ice punch and metagross brick break, simply because metagross is a bit faster and i would want to take down screens quickly, especially if I had a hard hit from regirock coming right after. Explosion is explosion.
Azelf @ Life Orb EVs in Sp. Attk Ability: Levitate Flamethrower/Fire Blast Psyshock/Psychic U-Turn Explosion