Volcarona

Volcarona is one of BW OU's definitive sweepers. Its typing has problematic weaknesses but is an excellent offensive combination with credible defensive merit, resisting Grass, Steel, and most notably Fighting against Breloom and Scizor. Flame Body is a good defensive perk, making up for Volcarona's low natural physical bulk by potentially neutralizing dangerous attackers like Tyranitar and Scizor. Its solid coverage options include Psychic and Giga Drain, which blow away checks such as Tentacruel, Jellicent, Keldeo, Terrakion, and Gastrodon. In addition, its solid Speed tier lets it outspeed serious threats such as Landorus-T, Excadrill, Kyurem-B, and Modest Thundurus-T. Quiver Dance, not only fixing its power, increases its special bulk to take powerful hits like Choice Scarf Keldeo's Hydro Pump outside of rain.

Despite these incredible boons, Volcarona can't just be slapped on any team. Despite its resistances and Flame Body, its physical fraility is a concern that can prevent it from outright sweeping, and its 4x Stealth Rock weakness mandates Rapid Spin support. Because of this, Volcarona fits best on offensive teams that can provide this support and easily beat whatever its coverage fails to hit. Though +1 Volcarona's Speed is impressive, it is still outpaced by notable Choice Scarf users like Latios, Garchomp, and Keldeo and is hit hard by Dragonite's Extreme Speed.