Ho Oh

Ho-Oh's amazing typing and access to Regenerator make it a staple in the Ubers tier, capable of taking on many meta-defining Pokemon such as Koraidon, Zacian-C, Necrozma-DM, and Eternatus. Ho-Oh can safely scout opposing threats, while Sacred Fire makes it difficult for most physical attackers to pivot around it. Furthermore, Ho-Oh's can Terastallize and become incredibly difficult to break throughout the course of a game. However, Ho-Oh does have its flaws. Ho-Oh's best check is itself, so a lot of structures have an easy pivot into it. Ho-Oh's prominence means that even Pokemon that it would typically answer, like Arceus-Fairy and Zacian-C, pack coverage to get past it. Kyogre and Arceus-Water are also meta-defining Pokemon that can force out Ho-Oh with their powerful Water-type attacks. Physical attackers that Terastallize into a Fire-type can use it as setup fodder, though they have to be wary of Whirlwind. Finally, although Ho-Oh does check Koraidon, it has to be wary of Swords Dance variants OHKOing it with a high roll Scale Shot or Wild Charge.