Volcarona

Volcarona is an underestimated Pokemon in the Almost Any Ability metagame. It has access to Quiver Dance, a fantastic boosting move that allows it to be a great late-game special sweeper. Its incredible base 135 Special Attack lets it hit very hard, while base 100 Speed lets it outspeed the unboosted metagame after a Quiver Dance. Bug / Fire is a potent offensive typing, as STAB Bug Buzz makes Volcarona one of the few boosting sweepers that can break through Unaware Cresselia. It also offers useful resistances to Fighting, Grass, Bug, Steel, Ice, and Fairy, which means it resists Pixilate- and Refrigerate-boosted Extreme Speed and can set up on defensive Bug- and Steel-types.

Despite Volcarona's powers, a massive weakness to entry hazards means Magic Guard is required on teams without sufficient hazard control, and many Steel-types run Flash Fire or Primordial Sea, which makes it harder for Volcarona to clean up. Volcarona's physical bulk is underwhelming too, and Gale Wings users give it a hard time, as they can easily revenge kill it with a priority Brave Bird.