Skarmory

Skarmory is an effective support Pokemon in Ubers, having access to moves such as Spikes, Stealth Rock, Defog, Whirlwind, Taunt, and Toxic. It also has reliable recovery in Roost, which is something that a lot of Steel-types lack. It has an exceptional typing that grants it ten resistances and two immunities, and it has solid physical bulk. Because of all this, Skarmory is able to check many threats, such as Extreme Killer Arceus, Mega Salamence, Primal Groudon without a Fire-type move, Swords Dance Arceus-Ground, Mega Kangaskhan, and Mega Mewtwo X. It can also run a viable specially defensive set that allows it to check Latias, Latios, and support Arceus formes, making it a great Spikes setter. Its ability is not useless either and can allow Skarmory to phaze a threat like Geomancy Xerneas in a pinch. It also benefits from the decline of Electric-types and Palkia. However, it is on the frailer side in terms of special bulk, and it has little offensive presence, making it Taunt bait.