He's playing on White, so Speed Boost Scolipede is unavailable, and Sylveon doesn't exist. Clefable isn't good in Gen 5 either.
Which reminds me....minibot, you can't do Wifi battles since Wifi was shut down for the Wii and DS/DS Lite/DSi last month. If you're playing against friends, you're ok then.
Didn't see that. Forget about Clefable Scolipede and Mandibuzz, then; they're not that good in B/W.
My point still stands on Haxorus, Gengar and Dragonite. The prime hazard clearers of B/W OU are Forretress, Donphan and Starmie:
Forretress:
-Stealth Rock/Spikes
-Rapid Spin
-Gyro Ball/Hidden Power (Ice)
-Volt Switch
Nature: Relaxed/Bold
EVs: 252 HP/252 Def/4 SDef
Item: Leftovers
Ability: Sturdy
Donphan:
-Stealth Rock
-Rapid Spin
-Earthquake
-Ice Shard
Nature: Impish
EVs: 252 HP/252 Def/4 SDef
Item: Leftovers
Ability: Sturdy
Starmie:
-Hydro Pump/Surf
-Psyshock/Thunderbolt
-Ice Beam
-Rapid Spin
Nature: Timid
EVs: 252 SAtk/4 SDef/252 Spe
Item: Life Orb/Leftovers
Ability: Natural Cure
or
-Scald
-Psyshock/Ice Beam/Thunderbolt
-Rapid Spin
-Recover
Nature: Timid
EVs: 248 HP/32 Def/4 SAtk/224 Spe
Item: Leftovers
Ability: Natural Cure
The ideal Wish supporter is Vaporeon:
-Wish
-Protect
-Scald
-Ice Beam/Roar/Toxic/Heal Bell
Nature: Bold
EVs: 248 HP/252 Def/8 SDef
Item: Leftovers
Ability: Water Absorb