Azumarill

Azumarill graces BDSP OU as either a terrifying, hard-to-scout Belly Drum sweeper or a strong wallbreaker with Choice Band. Huge Power, STAB priority in Aqua Jet, and a rarely-resisted STAB combination back up its offense, while its Water / Fairy typing helps it switch into prominent Dragon-types and some offensive threats. Azumarill is generally a strong option for hyper offense and standard offense teams, since Aqua Jet is handy in the priority-heavy BDSP OU metagame, and it switches into offensive foes such as Feraligatr, Weavile, and Infernape to quickly wreak havoc. However, it needs support to stay healthy —especially if using Belly Drum— and to handle certain threats. Its low Speed leaves it vulnerable defensively despite its decent bulk and Aqua Jet, and it needs help to pressure the common Breloom and Rotom-Wash, which massively threaten it in return. Azumarill's main set, Belly Drum + Sitrus Berry, also struggles to beat Unaware Clefable, a common defensive glue Pokemon that it can't 2HKO. Still, Azumarill usually only needs one window of opportunity to either sweep or put a dent in the opposition.