Try checking the Smogdex which has analyses for most pokemon. Anyways: Beedrill is to be used as a fast revenge killer/game cleaner that abuses u-turn. Its ability makes it an excellent wall breaker. When using Beedrill make sure to bring a rapid spinner so stealth rocks and spikes won't give Beedrill trouble while u-turning around. A volt switch partner is also appreciated (like Magnezone/ton) so you have a volt-turn core. One last thing: Beedrill must not switch in attacks because of its frail defenses. Hope I helped.