Well that was fun. After nabbing my Darkrai, I was bored and decided to challenge the 70+ E4 in BW with my 62-65 Pokémon a couple hours ago. Went through the first four and got to Alder.
Sent out my Venomoth first and trolled his Accelgor with Sleep Powder and eventually got to a +6 SpA/SpD/Speed boost with Quiver Dance. After all of that, I killed the Accelgor, he sent his Volcarona out on me and I Baton Passed my +6 boosts to my lv 62 Slowking and watched Volcarona's Overheat on the switch-in do like 20 damage to it. I then proceeded to one shot Volcarona and the rest of his 75lv+ Pokémon with a mix of Psyshock, Flamethrower, and Surf.
Quiver Dance/Baton Pass Venomoth is the best.
