Beedrill

By virtue of amazing offensive stats and Adaptability, Mega Beedrill is among the best offensive pivots available. Its typing allows it to provide heavy offensive pressure to common Pokemon such as Primarina and Latias, while its access to good coverage options like Drill Run and Knock Off lets it hit the majority of the tier quite hard. Mega Beedrill also has access to Toxic Spikes, which it can use as it forces switches to wear down opposing Pokemon. However, Mega Beedrill has atrocious bulk, which leaves it vulnerable to Choice Scarf users, strong priority, and the ever-present Mega Aerodactyl. Its Stealth Rock-weak typing also keeps it from properly functioning as a pivot without an entry hazard remover on its team, thus complicating building with Mega Beedrill at times. Lastly, Mega Beedrill struggles to break past a few big presences in the tier, including Hippowdon, Scizor, and Mega Aerodactyl, due to its only decent coverage.