Skarmory

Thanks to its great defensive typing and excellent Defense stat, Skarmory is one of the best physical walls in the tier, able to check many physical attackers like Excadrill, Weavile, Mega Lopunny, Mega Scizor, and Landorus-T. Skarmory also has access to many utility moves, like Spikes to wear down foes as they switch in, Roost to stay healthy, and Whirlwind to phase foes. Skarmory does, however, have very low HP and Special Defense stats, making it vulnerable to strong special attackers like Keldeo, Thundurus, and Mega Charizard Y, and its Flying / Steel typing leaves it vulnerable to common types in Fire and Electric.