So, I built this team to test Mamoswine + Hone Claws Mega Aero, which is a lit core when used correctly. Mega Aerodactyl can sweep the mid- or late-game with Hone Claws, and it doesn't have Wing Attack because I don't feel like I needed to hit Buzzwole since I have Toxic + Bulk Up Buzzwole. Mamoswine is one of the scariest wallbreakers outta there, and while it shares some checks with Mega Aero, it can easily overwhelm them with its Life Orb boosted Earthquake. Celebi is there to check Water-types, including Suicune, Mega Swampert (Yache Berry!), and Jellicent. Empoleon can take hits from Mega Pidgeot and Primarina, set Stealth Rock, and Defog the cancer. Buzzwole is, sincerely, stupid with this set. Bulk Up Buzzwole with a lotta SpDef investment is already pretty good, and since this team doesn't need the Ice/Ground coverage, I decided to use Toxic to lure other Buzzwole. Scarf Latias is, in my opinion, the best revenge killer in the tier, as it can revenge kill other Scarfers, such as Hydreigon, Mienshao, and Infernape, and can also surprise Mega Beedrill and Hydreigon.