Buzzwole

Aggronite Buzzwole is a great physical wall thanks to its excellent defensive typing in Bug / Steel. It has great utility moves that are suitable for its role of a physical wall including Lunge, Bulk Up, and Roost. It also boasts a useful resistance to Pixilate Extreme Speed after Mega Evolution, making it a check to threats with the move like the notable Altarianite Zygarde. Upon Mega Evolution, it has only one weakness and a plethora of resistances, allowing it to fearlessly take more physical hits than it could before. For example, it then easily takes on Glalitite users and Altarianite users. It is a unique wall in the fact that it isn't passive; it cannot be easily used as setup fodder, and in some situations it can use its offensive presence to become a wincon late-game. Filter is useful for fighting against defensive Pokemon carrying Fire-type moves, but is much less help against offensive Pokemon with Fire-type coverage. Unfortunately, Buzzwole's Special Defense is still low after Mega Evolving. While it can still be used to take on weak special attackers, it will struggle to take anything from the likes of Lunala and Blastoisinite Darkrai.